Monday, August 5, 2013

Asthma Endophenotypes? Their Implications for Psychiatry

Asthma is an annoying and sometimes fatal disease.  I have first hand experience with it because I have had asthma for at least 40 years.  Like many of my personal medical afflictions that I have posted about on this blog it was initially missed and not treated.  According to recent studies, that is still a common experience.  When I was a teenager, wheezing when mowing the lawn was apparently considered a normal reaction.  When I developed a more systemic reaction right in a physician's office, my parents were taken into an adjacent room and advised that it was apparently all "in my head" and it was some sort of psychosomatic reaction.  The psychosomatic reaction responded well to epinephrine injections and diphenhydramine.  Even when I was in medical school the treatment of asthma was shaky.  I was taking theophylline pills twice a day for several years and the patients I began treating for exacerbations of chronic obstructive pulmonary disease were all on aminophylline drips and corticosteroids.  We all had to memorize those protocols and of course know the mechanism of action (now invalidated) that was based on Sutherland's Nobel Prize winning work on cyclic AMP.  Today theophylline is considered a tertiary option for uncontrolled asthma rather than a first line treatment.

 As a fourth year medical student, I presented a very well received seminar on "slow reacting substance of anaphylaxis" or SRS-A now known to be a mixture of leukotrienes.  Eventually the treatment of asthma changed and glucocorticoid inhalers became the treatment of choice for a while.  As any primary care physician or asthmatic patient knows - no two asthmatic patients are the same.  As an example, peak flow meters are routinely used to measure asthmatic control.  No matter how badly I am wheezing, I can always max out that peak flow meter.  Asthma is a complex disease with varied presentations and the current treatment algorithms are complex with varied medications.

The diagnostic criteria of asthma seem relatively straightforward and are listed in the table below:

Diagnosis of Asthma (see additional details in National Heart, Lung and Blood Institute reference) and reference 8 below:
1.  Recurrent symptoms of airflow obstruction or airway hyperresponsiveness (eg. wheezing, chest tightness, cough, shortness of breath.)

2.  Objective assessment as evidenced by:

     A.   Airflow obstruction as least partially reversible by inhaled short acting beta2 agonists as demonstrated by any of the following:

-        Increase in FEV1 of ≥ 12% from baseline
-        Increase in predicted FEV1 of ≥ 10% from baseline
-        Increase in PEF (liters/minute) of ≥ 20% from baseline
            
     B.   Diurnal variation in PEF of more than 10%
     C.   No other causes of obstruction
FEV1 = forced expiratory volume in 1 second (liters)
PEF = peak expiratory flow

Medicine texts have traditionally used breakpoints in the above parameters to distinguish mild, moderate and severe asthma.  Despite what seem to be clear diagnostic criteria a recent review (8) in the New England Journal of Medicine states:  "Most patients with asthma have mild persistent disease which tends to be underdiagnosed, undertreated, and inadequately controlled."  The reference cited in that review points out that only 1 in 7 patients achieved good control of their asthma.  

There has been a sudden surge in research on asthma phenotypes, endotypes, and endophenotypes.  Endophenotypes are subtypes of a particular phenotype that are thought to have a common pathophysiological mechanism or in the case of psychiatry a biochemical, neurophysiological, neuropsychological maker that allows for the subclassification.  If you have attended any serious psychiatric genetics course in the past decade you have probably heard about endophenotypes.  Gottesman and Gould published a widely cited paper in the American Journal of Psychiatry in 2003 discussed the concept and its application in psychiatry.  There have been 132 references to papers on endophenotype in the Schizophrenia Bulletin alone, including a special theme issue.

A group of 5 asthma endotypes have been suggested by Corren (7).  He uses the definition of endotype as "a subtype of a condition defined by a distinct pathophysiological mechanism."  The classification was a consensus of experts looking at clinical characteristics, biomarkers, lung physiology, genetics, histopathology, and treatment response.  The following 5 endotypes were identified.

Asthma Endotypes
Allergic Asthma
Childhood onset, hypersensitivity to airborne allergens, Th2 mediated inflammatory process, eosinophilia of blood and airways, inhaled corticosteroids less effective, IgE antagonists are more effective. 
Aspirin exacerbated respiratory disease (AERD)
Chronic rhinosinusitis with nasal polyps, severe bronchospasm if NSAIDs are ingested, marked blood and airway eosinophilia, increased expression of leukotriene C4 synthetase, response to cysteinyl leukotriene receptor antagonists and 5-lipoxyenase inhibitors  
Allergic bronchopulmonary mycosis (ABPM)
Colonization of airways by Aspergillus fumigatus, increased fungal specific IgE and IgG, elevated blood eosinophil and total IgE levels, elevated airway eosinophils and neutrophils, requires oral corticosteroids and antifungals
Late Onset Asthma
Pulmonary function testing is more impaired than allergic asthma, marked eosinophilia in blood and airways, need oral corticosteroids.  May be mediated by IL-5.  
Cross country skiing induced asthma (CCSA)
Triggered by exposure to cold dry air and intense exercise, not usually due to allergies, inflammatory infiltrate consists of lymphocytes, macrophages, and neutrophils rather than eosinophils,  airway remodeling with thickened basement membrane, not usually responsive to inhaled corticosteroids.

The tables on diagnosis and endophenotype are remarkable for their parallels with psychiatric diagnosis and research.  The available endotypes do probably not capture all of the clinical scenarios of asthma because patient behavior is a significant factor.  The endotype classification of asthma by experts is interesting in that it includes a treatment response dimension and this has been avoided in psychiatry at the diagnostic level.

Like mental illnesses, asthma is a complex polygenic disease with considerable clinical heterogeneity.  Using endophenotype approaches very similar to the approaches that have been applied to the study of schizophrenia offers the hope that classification and treatments of subtypes will be more effective and the connection between the genetics of the illness, pathophysiological mechanisms, and subtype will become more apparent.  Although the parallels with mental illness are clear, asthma researchers and clinicians treating asthma have the advantage in that they can proceed without the stigmatization that only accompanies psychiatric disorders and psychiatrists.

George Dawson, MD, DFAPA




1: Barranco P, Pérez-Francés C, Quirce S, Gómez-Torrijos E, Cárdenas R, Sánchez-García S, Rodríguez-Fernández F, Campo P, Olaguibel JM, Delgado J; Severe Asthma Working Group of the SEAIC Asthma Committee. Consensus document on the diagnosis of severe uncontrolled asthma. J Investig Allergol Clin Immunol. 2012;22(7):460-75; quiz 2 p following 475. PubMed PMID: 23397668.

2: Simon T, Semsei AF, Ungvári I, Hadadi E, Virág V, Nagy A, Vangor MS, László V, Szalai C, Falus A. Asthma endophenotypes and polymorphisms in the histamine receptor HRH4 gene. Int Arch Allergy Immunol. 2012;159(2):109-20. doi: 10.1159/000335919. Epub 2012 May 30. PubMed PMID: 22653292.
3: Matteini AM, Fallin MD, Kammerer CM, Schupf N, Yashin AI, Christensen K, Arbeev KG, Barr G, Mayeux R, Newman AB, Walston JD. Heritability estimates of endophenotypes of long and health life: the Long Life Family Study. J Gerontol A Biol Sci Med Sci. 2010 Dec;65(12):1375-9. doi: 10.1093/gerona/glq154. Epub 2010 Sep 2. PubMed PMID: 20813793; PubMed Central PMCID: PMC2990267. 

 4: Bisgaard H, Bønnelykke K. Long-term studies of the natural history of asthma in childhood. J Allergy Clin Immunol. 2010 Aug;126(2):187-97; quiz 198-9.  doi: 10.1016/j.jaci.2010.07.011. Review. PubMed PMID: 20688204. 

5: Chan IH, Tang NL, Leung TF, Huang W, Lam YY, Li CY, Wong CK, Wong GW, Lam CW. 
Study of gene-gene interactions for endophenotypic quantitative traits in Chinese asthmatic children. Allergy. 2008 Aug;63(8):1031-9.
doi: 10.1111/j.1398-9995.2008.01639.x. PubMed PMID: 18691306. 

6: Thompson MD, Takasaki J, Capra V, Rovati GE, Siminovitch KA, Burnham WM, Hudson TJ, Bossé Y, Cole DE. G-protein-coupled receptors and asthma endophenotypes: the cysteinyl leukotriene system in perspective. Mol Diagn Ther. 2006;10(6):353-66. Review. PubMed PMID: 17154652.

7. Corren J. Asthma phenotypes and endotypes: an evolving paradigm for classification.
Discov Med. 2013 Apr;15(83):243-9. PubMed PMID: 23636141.

8. Bel EH. Clinical Practice. Mild asthma. N Engl J Med. 2013 Aug 8;369(6):549-57.
doi: 10.1056/NEJMcp1214826. PubMed PMID: 23924005



Sunday, July 28, 2013

Pattern Matching in Psychiatric Diagnosis

I first heard about pattern matching and the importance it has in medical diagnosis over 30 years ago.  A friend of mine who was in medical school at the time told me about one of his professors who was always interested in the Augenblick diagnosis or the diagnosis that  could be arrived at in the blink of an eye.  He gave me examples of several diagnoses that could be either made immediately or within minutes based on a set of features that would lead to immediate associations in the mind of the clinician without an extensive evaluation.

I had many encounters in my medical training with the same phenomenon.  I can recall being on the Infectious Disease consult team and being asked to see a patient with ascites for the possible diagnosis and treatment of spontaneous bacterial peritonitis.  The consultant with an expert in Streptococcal infections and after patiently listening to the resident's presentation he asked what we thought of the rash on the patient's leg.  The patient had lower extremity edema with a slightly erythematous hue and a slight exudate in areas.  What was the diagnosis?  Without skipping a beat the consultant said this was streptococcal cellulitis and suggested sending a sample to the lab for confirmation.  It was subsequently confirmed and treated.  Why was the attending physician able to hone in on and diagnose this rash when it escaped the detection of two Medicine residents and two medical students?  He was an Infectious Disease specialist and that may have biased him in that direction but is there something else?

One of the ways that physicians and probably all classes of diagnosticians arrive at Augenblick diagnoses or efficiently clump and sort through larger amounts of information faster is by pattern matching.  Pattern matching is also the reason why clinical training is necessary to become an adequate diagnostician.  That will not happen with rote learning alone.  It is one thing to read about heart sounds and actually experience them and to have that skill refined by listening to hundreds and thousands of normal hearts and hearts with varying degrees of pathology.  Rashes are classic examples and several studies have documented that the speed and accuracy with which dermatologists can make an accurate diagnosis of a rash is much higher than the average physician.  In pattern matching a recognizable feature of the patient's illness triggers an immediate association with the physicians experiences from the past leading to a facilitated diagnosis.

Probably the best conceptualizations of pattern matching comes from the fields of philosophy and cognitive science.  My favorite author is Andy Clarke and his book Microcognition.  He addresses the issue of biologically relevant cognitive science and the model of parallel distributed processing.  A simplified diagram drawn from this model is shown below:


In this case we have a very practical problem of a patient with known bipolar disorder and a question of whether or not they have had a stroke.  In this case the respective clouds (there are many more) represent collection of features of medical diagnoses that may be relevant to the case.  Unlike a textbook, these features represent a lot of varied information including actual events and nonverbal information like the clinicians past history of diagnosing strokes and caring for people who have had strokes.   Each cloud here can contain hundreds or tens of thousands of these features.  These features are unique aspects of the clinician conscious state and the only way to control for variability between clinicians is to assure that physicians in the same speciality have similar exposure to these experiences in their training.  Even in the ideal situation where all specialists have an identical exposure to the same illness there will be variability based on different levels of ability and other capacities.  An example would be a Medicine resident I worked with whose examination of the heart with a stethoscope predicted the echocardiogram results.  It became kind of a joke on our team at the time that all he had to do was hold his stethoscope in the air in a patient's room and it was as good as an ultrasound.

The basic idea in pattern matching is that the clinician immediately recognizes one of the features they know and that allows for a rapid diagnosis or plan based on that feature.   Looking how that works in the hypothetical case we can look at a few features in the map:


 For the purpose of this discussion consider that our patient B is a 60 year old woman with a 35 year history of known bipolar disorder.  She has known her psychiatrist for years.  One day the husband calls with the concern that the patient seems to have developed a problem with communication.  She seems to be talking in her usual voice but he can't comprehend what she is saying.  She does not appear to be manic or depressed.  The psychiatrist listens to the patient on the phone and concludes that she has a fluent aphasia and recommends that they take her to the emergency department as soon as possible.  Ongoing care requires that the psychiatrist talk with the emergency department physician and hospitalist to make sure that acute stroke is high in their differential diagnosis and eventually go in to the hospital and examine the patient to confirm the diagnosis.

Practically all cases of psychiatric diagnosis require some measure of this pattern matching process with varying degrees of medical acuity.  I would go so far to suggest that it is the most important aspect of the diagnosis.  Keep in mind that the pattern matching also applies to the purely psychiatric part of the diagram.  Despite all of the recent criticism and focus on the DSM 5 the elaboration of pattern matching leads us to several important conclusions:

1.  Psychiatric diagnosis is a much more dynamic process than rote learning from a diagnostic manual.  The average clinician should have many more features of diagnoses than are listed in any manual.

2.  Psychiatric diagnosis requires medical training.  There is no way that our psychiatrist in the example could have made the diagnosis of aphasia and remain involved in the diagnostic process to its conclusion without medical training and previous exposures to these scenarios.

3.  The training implications of these scenarios are not often made explicit.  Every medical student, resident and practicing physician needs to be exposed to a diverse population of patients with problems in their area of expertise in order to develop a pattern matching capability.  They can also benefit by asking attending clinicians about how they made rapid diagnoses, but at that level of training the question is not obvious.

4.  Removing physicians with these capabilities from the diagnostic loop reduces the capability of that loop.  The best example I can continue to think of is the primary care process where the diagnosis and ongoing treatment of depression or anxiety depends on the results of a checklist that the patient completes in less than 5 minutes.  This assumes that there is an entity out there called depression that is based purely on a verbal description and pattern matching is not required.  It actually assumes that there is a population of people with this affliction.  Despite all of the hype about how this is "measurement based care" - I don't think that a single person like that exists.

5.  Pattern matching blurs the line between objective and subjective.  There is often much confusion about this line.  Are there "objective criteria" that can be written in a manual somewhere that captures even the basic essence of diagnosing a stroke in a patient with bipolar disorder?  Is there an "objective" checklist out there somewhere that can capture the problem?  Obviously not.  For some reason people tend to equate "subjective" with "bad" or "unscientific".  In the example given and any similar example, the subjective state with the most experience diagnosing strokes is probably the "best" diagnostician - subjective or not.  An "objective" rating scale doesn't stand a chance.

So consider pattern matching to be an important but unspoken part of the diagnostic process.  For obvious reasons it is more important than diagnostic criteria in a manual.  The most obvious of these reasons is that you really cannot practice medicine without it.

George Dawson, MD, DFAPA

Clark A.  Microcognition.  London, A Bradford Book, 1991.


Sunday, July 21, 2013

Why A Checklist is Not A Psychiatric Diagnosis

I was inspired by a post by Massimo Pugliucci on his excellent philosophy blog Rationally Speaking, to start using concept mapping software to describe some of the things that psychiatrists do and rarely get credit for.  There is the associated problem (as I have posted here many times) of checklists being seen as the equivalent of a psychiatric diagnosis.  That has been carried to the extreme that some have said rating scales are actual "measurements" or validating markers of psychiatric diagnosis.  Any cursory inspection of the combination of parallel and sequential processes that actually occur during an interview will demonstrate that is not remotely accurate.

Click on this link for the actual concept map.  A click on the diagram will zoom it for viewing.  Another click will zoom out.  Navigate by mouse wheel or scroll bars.  It should print out onto one standard sheet of paper in a landscape view.

I am interested in feedback from psychiatrists on what aspects they would modify.  If you have suggestions about what should be modified post them in the comments section or send me an e-mail.

Concept Map



The concept map may also be useful for explaining some findings that are commonly held up as "problems" with the diagnosis such as low reliability.  A common ( and purely hypothetical) example would be the 35 year old patient with a clear diagnosis of depression as a teenager, no history of remission of symptoms and multiple antidepressant trials who develops a polysubstance dependence (alcohol, cocaine, heroin) problem who is being seen in various states of withdrawal for the treatment of depression, insomnia and suicidal ideation. At this point does the patient have major depression, dysthymia, substance induced depression, or depression due to withdrawal symptoms?  What would tell you more about this patient's problems - a psychiatric diagnosis or a PHQ-9 score?  What would be more helpful in developing a treatment plan?

This answer to that question is the difference between medical quality and a term that is frequently substituted by governments and managed care companies.  That term is "value".  Governments and managed care companies apparently believe that giving someone an antidepressant medication for a PHQ-9 score is a better value than a psychiatric evaluation.

George Dawson, MD, DFAPA

Saturday, July 20, 2013

Is the FDA objective enough to assess treatments in psychiatry - or is this just politics as usual?

The American Psychiatric Association (APA) feed posted a link to this FDA news release regarding a new biological test for Attention Deficit Hyperactivity disorder.  The device is essentially a quantitative EEG (QEEG) machine.  The QEEG heyday was back in the mid 1980s to 1990's.  Devices were designed that could take the standard output of an EEG montage and look at the frequency bands and how that activity fluctuated topographically within the individual.  There were two major manufacturers at the time and both of those technologies allowed for a comparison of the subjects QEEG with a standardized groups.  The difference could be determined as a t or z score and that was plotted relative to the electrode placements.  The final analysis would yield maps consisting of frequencies and mathematical operations on those frequencies.

There were several articles on this methodology including an impressive article in Science on the diagnostic capabilities of these instruments.  One manufacturer provided an algorithm of clinical features and EEG features that purported to diagnose major psychiatric disorders.  You could actually analyze the data both ways - with or without the clinical features.  There was enthusiasm to the point that a new psychiatric subspecialty in electrophysiology was made to meet the requirements of psychiatrists who wanted to use QEEG technology.

In 1988, I was so impressed with the technology that I approached a potential employer and struck a bargain that I would take a salary cut if they would buy me the machine and the deal was struck.  I was fortunate enough to be affiliated with a certified electrophysiology lab with an outstanding electrophysiologist and EEG technologists.  This was critical in order to collect standardized data and select numerous 2 second epochs of EEG data for computerized analysis.  The epochs had to be completely free of artifact in order to provide valid data for analysis and anywhere from 30 to 60 of these epochs needed to be selected per patient.

If you think about it for more than a few minutes, what is wrong with the idea that EEG frequencies should point to a specific psychiatric diagnosis?  The short answer is a lack of specificity.  There are literally hundreds of conditions that can lead to fast or slow frequencies including normal fluctuations of conscious states.  During my QEEG work we had to collect EEG epochs for analysis in the "eyes closed but alert" state.  Quantitative EEGs can demonstrate significant fluctuation in that state.

After several hundred QEEGs with and without the computerized algorithm, it was apparent that the diagnostic abilities of QEEG were low.  There were literally a handful of analyses that seemed to match the clinical diagnosis and at that point we shut down the project.  As far as I can tell from their web site, that company no longer sells a QEEG machine claiming to make psychiatric diagnoses.

I have not been able to locate the specific reference for this FDA approval.  The FDA press release states:

"In support of the de novo petition, the manufacturer submitted data including a clinical study that evaluated 275 children and adolescents ranging from 6 to 17 years old with attention or behavioral concerns. Clinicians evaluated all 275 patients using the NEBA System and using standard diagnostic protocols, including the Diagnostic and Statistical Manual of Mental Disorders IV Text Revision(DSM-IV-TR) criteria, behavioral questionnaires, behavioral and IQ testing, and physical exams to determine if the patient had ADHD. An independent group of ADHD experts reviewed these data and arrived at a consensus diagnosis regarding whether the research subject met clinical criteria for ADHD or another condition. The study results showed that the use of the NEBA System aided clinicians in making a more accurate diagnosis of ADHD when used in conjunction with a clinical assessment for ADHD, compared with doing the clinical assessment alone."

From ClinicalTrials.gov that appears to be this registered clinical trial.  No results are reported and there are no publications in peer reviewed journals that I can find.  The concerns about this technology should be apparent from the history outlined in the above narrative and the same application suggested by the FDA.  This is not a diagnostic procedure but one that is a supplement to the clinical evaluation for ADHD.  It reminds me what Russell Barkley - noted ADHD expert and scholar said in a seminar I attended last fall.  There are no gold standard tests for ADHD any more than there are for any other problems of executive function.  He pointed out that hours of neuropsychological testing (he is a neuropsychologist) is no more accurate than standard ADHD checklists.  Neuropsychological testing is important because of the high prevalence of learning disorders in ADHD.

My prediction at this point (pending an actual published research paper) is that this QEEG machine will not be that clinically useful and if it is a question of neuropsychological testing versus the QEEG, neuropsych testing should be the the option because it can detect and allow for treatment planning for any associated learning disorders and QEEG cannot. One of the risks here in an age where insurance companies deny diagnostic costs is that neuropsychological testing is denied and the QEEG substituted depending on cost.  That would not allow for the recognition or treatment planning for a learning disorder.

The larger question is how competent the FDA is to make decisions on devices for psychiatric disorders?  The FDA came out with a notice in 2011 that electroconvulsive therapy devices may need to be reclassified (Class II to Class III) resulting in the need for additional testing, clinical trials, and regulation.  That occurred after two generations of psychiatrists were trained on the current devices and have clinically demonstrated that it is a safe, effective and in many cases life saving therapy.  They completed their own study and meta-analyses and it is unclear to me what they concluded.  I consider the FDA web site to essentially be unnavigable.  Available information in the psychiatric literature suggests that they are still is the process of coming up with a formula for reclassification of ECT devices to a more restrictive category and that their analysis of the efficacy of ECT may have been seriously underestimated.  The concern of the authors is that reclassification will restrict availability of ECT to patients who have clear indications for its use much in the same way that poor Medicare reimbursement restricts the availability in some hospitals now.

The even larger question is there some kind of systematic bias operating here?  Both the ECT and QEEG decisions seem mismatched with the available science and clinical experience.  The FDA has the appearance of transparency, but you can never find what you need in the thousands of web pages that are linked to the agency.  In the ECT example, I could not find a clear statement, vote or conclusion about the ECT decision until I read the article by Weiner, at al.  In the case of the QEEG device there is no publication of the study supporting its use.  Independent review suggests that there have been no advances in the past 16 years.

George Dawson, MD, DFAPA


FDA Executive Summary.  Meeting to Discuss the Classification of Electroconvulsive Therapy (ECT) Devices.  January 27-28, 2011.

Weiner R, Lisanby SH, Husain MM, Morales OG, Maixner DF, Hall SE, Beeghly J,Greden JF; National Network of Depression Centers. Electroconvulsive therapy device classification: response to FDA advisory panel hearing and recommendations. J Clin Psychiatry. 2013 Jan;74(1):38-42. doi:10.4088/JCP.12cs08260. PubMed PMID: 23419224.

Sand T, Bjørk MH, Vaaler AE. Is EEG a useful test in adult psychiatry? Tidsskr Nor Laegeforen. 2013 Jun 11;133(11):1200-1204. English, Norwegian. PubMed PMID: 23759782.

Nuwer M. Assessment of digital EEG, quantitative EEG, and EEG brain mapping: report of the American Academy of Neurology and the American Clinical Neurophysiology Society. Neurology. 1997 Jul;49(1):277-92. Review. PubMed PMID: 9222209.

"E. On the basis of current clinical literature, opinions of most experts, and proposed rationales for their use,QEEG remains investigational for clinical use in postconcussion syndrome, mild or moderate head injury, learning disability, attention disorders, schizophrenia, depression, alcoholism, and drug abuse." (from Nuwer 1997)

Thursday, July 18, 2013

How to Improve the Accuracy of Psychiatric Diagnoses - My Take

Allen Frances, MD has just blogged his ideas about how to improve the accuracy of psychiatric diagnoses.  His ideas basically come down to "be extremely alert to severe mental disorders and extremely cautious and patient before diagnosing mild ones."  He suggests a posture of "watchful waiting" of mild conditions to avoid attributing a treatment effect to a medication when in fact it is a placebo response.  He suggests erring on the side of underdiagnosis rather than over diagnosis.  I suppose that is all well and good but I have a few ideas on my own:

1.  Be a physician first - anyone coming for an evaluation needs to be assessed from a triage perspective.  Most American Psychiatric Association (APA) guidelines emphasize the need to assess the psychiatric parameters of acuity such as suicidal ideation and aggressive ideation and the risk of those behaviors, but there is very little medical guidance.   Psychiatrists need to be able to rapidly recognize both acute medical illness and medical illness that is causing the psychiatric presentation. They need to be able to rapidly assess medical problems that may interfere with the treatment of the psychiatric disorder.  The best way to have those  skills is to have adequate exposure to the full range of medical problems that can be encountered, especially from a pattern matching and pattern completion perspective.  That occurs only from treating many people with variations on the problem.  That starts in Medical School where every prospective psychiatrist should be focused on those experiences.

2.  Interpret your own studies - that means actually taking a look at actual brain scans, ECGs, lab tests, and other reports relevant to the care of your patients.  Psychiatrists need to be actively involved in the medical aspects of the care their patients, especially when they know more about the problems than the other physicians on the scene.  A few examples would be in the area of drug interactions, movement disorders, toxic syndromes like neuroleptic malignant syndrome and serotonin syndrome, the evaluation of delirium, electrocardiogram effects of psychiatric medications, and drug intoxication and withdrawal syndromes.

3.  Communicate well with the patient and their family.  Psychiatrists are trained and observed extensively in interviewing techniques.  They should understand the limits of specific interview situations and they should have well developed therapeutic neutrality that other physicians do not necessarily have.  In that environment they should be able to have the most productive dialogue with the patient and their family.  Psychiatrists should be experts in a diagnostic process that includes information from multiple sources.  Psychiatrists are also schooled in the concept of a therapeutic alliance and the implications of that orientation in treatment.

4.  Recognize the importance of psychotherapy.  Many diagnostic sessions require that psychotherapeutic interventions to be woven into that interview to support the patient, alleviate acute anxiety and to allow for a more thorough diagnosis.  Careful approaches to the diagnosis and treatment of patients requires recognition of the fact that some people will not tolerate any medications and psychotherapy may be the only available modality.  I do not hesitate to tell patients after an assessment that psychotherapy may be the best approach to the problem as well as discuss non medical approaches that have documented efficacy.

5.  Perform an actual psychiatric diagnosis.  This task is critical in the training of psychiatrists there is a lack of understanding about what making a diagnosis actually means.  Contrary practically everything that you read in the media, checking off criteria in the DSM 5 is not a psychiatric diagnosis.  Rating scales are also not psychiatric diagnoses and they are not quantitative measures.  It is very common these days for a psychiatrist to see a patient who carries 4 or 5 misdiagnoses like Bipolar Disorder/Major Depression + Attention Deficit-Hyperactivity Disorder + Intermittent Explosive Disorder + Asperger's Syndrome.  These folks are frequently on medications that are supposed to address the various disorders and they may not have ANY of the disorders.  In some cases they may not require medical treatment.  There are many people out there making complicated psychiatric diagnoses and initiating treatment in a 20 minute visit who are not qualified to make these diagnoses.  The other line of demarcation is the impact that a disorder has on the patient.  People who are functioning well in all spheres of their lives, by DSM definition - do not have a psychiatric disorder.  Many people are relieved to hear that they do not have a diagnosis or if they have had a diagnosis in the past that they no longer require treatment.

That diagnosis should be more comprehensive than a list of diagnoses.  There should be a formulation that describes the phenomenology and potential etiologies of the current disorder(s).  A narrative that makes sense to the psychiatrist and the patient.  At the end of my diagnostic session with the patient, I will frequently state it out loud in order to let the person know what I am thinking and get their feedback on my formulation.  I think that there is inherent flexibility in these formulations because the psychological etiologies can still vary based on the model that seems most applicable or the model that the psychiatrist prefers to use.  As an example it could be psychodynamic, behavioral, interpersonal, or existential.  It may employ a more recent model like one based on third generation behavior therapy or be a more supportive model focused on bolstering the patient's defenses.  The formulation is part history but also a discussion of etiologies (biological, social, psychological), dynamics, and defensive patterns.  The formulation can provide convergent validation for the diagnoses.  It provides both a pathway to understand the patient and guide psychological interventions.  The bulk of the material for this assessment occurs in parallel with the discussion of symptoms.

6.  Know the literature on borderland syndromes.  There is a significant overlap between medical conditions that are fairly non-specific in terms of diagnosis and treatment response like chronic fatigue syndrome, fibromyalgia, and chronic pain.  There are a significant number of people who present to medical and surgical clinics with symptoms and they never receive a diagnosis or an explanation for those  symptoms.  Familiarity with these syndromes will greatly assist in the diagnosis and treatment of these individuals if they are referred for psychiatric evaluation.  Specific knowledge of these conditions will allow the psychiatrist to consider an effective approach and effective patient education.

7.  Don't compromise your process because of extraneous variables.  The largest extraneous variable these days is the intrusion of business into the practice of medicine.  Psychiatrists may find that they are subject to limitations that do not apply to other physicians.  As an example, I have been told (by a managed care company reviewer) that psychiatrists don't diagnose or treat delirium when I was the only physician capable of making the diagnosis.   If you assess the patient and believe they need further diagnostic procedures or a medication trial that may be diagnostic do not give in to a case manager or pharmacy benefit manager who refuses to authorize what you need.  Make sure you communicate what you think the best possible care is to the patient rather than what the business people think.  Don't confuse medical quality with what a managed care company is calling "value".  They are probably unrelated.

8.    In the case of children, the best diagnostic approach looks at the family process both initially and in an ongoing manner.  The family should see the psychiatrist as someone who is not only an interested observer, but someone who can offer good advice right from the start of the process and recognize that symptoms in the identified patient can be a product of family dynamics.

9.    Take enough time.  The only valid way to make a diagnosis is to see the patient and interact with them in such a way that they feel understood.  Anything that takes away from that process can negatively impact on the flow of information and the task of providing that person with the best possible diagnosis and treatment plan.  The patient in this situation should not have the same experience they would have in primary care clinic discussing their depression or anxiety symptoms and the most obvious difference should be the total time spent talking with the patient.

10.   Review your findings thoroughly with the patient and family members if they are involved.  The process of psychiatric diagnosis differs from typical medical or surgical evaluations because of the sheer amount of data involved.   As an example, it might typically involve a sleep history similar to what might be obtained in a sleep lab with an additional 200 data points to look at the major diagnostic categories.  Even at that point there may be constraints on the data in terms of accuracy or detail that require corroboration of active debate.

11.  Know your diagnostic thought process - there a number of biases in the diagnostic process that have been written about in the literature on diagnostic decision making and in some journal features like the excellent series in the New England Journal of Medicine.  If you know the heuristics involved you can prevent diagnostic errors.

12.  Consult with your colleagues - consultation with colleagues serves a couple of useful purposes.  No matter how industrious you are it is impossible to see every possible presentation of every possible illness.  When you discuss patient presentations with colleagues who are also treating patients you are in effect extending your own pattern matching capability to include what your colleagues have seen and treated.   In many cases your colleagues have diagnostic and treatment experience with very low volume illnesses that are ordinarily seen a few times in the course of a career.

These are a few ideas I wanted to post today and there are a lot more.  Many of them seem like common sense, but the diagnostic approach to mental illness as practiced in most medical settings these days is anything but common sense.  You cannot get a comprehensive evaluation and diagnosis in ten minutes and you cannot really be walking out of a clinic with multiple prescriptions for medications that are supposed to work for that diagnosis in ten minutes.    

George Dawson, MD, DFAPA


Saturday, July 13, 2013

The Real Lesson of the George Zimmerman Trial

The latest reality based media event has been the George Zimmerman trial.  Zimmerman shot and killed Trayvon Martin and most media outlets have reviewed the details of the case including courtroom reenactments of the physical confrontation that resulted in the shooting.  The secondary story is how the public will react to a verdict.  A tertiary story that is building at this time is media criticism - has the media gone to far and should there be cameras in the courtroom?

My point is not to reconstruct the arguments of case but to speculate about how unnecessary violent confrontations may occur in the first place.  They do occur frequently and the majority of those confrontations are not covered by the press.  You might read about them in your local newspaper or if you are a health professional you have probably encountered the victims or the combatants.  In my experience, the level of violence and the resulting injuries are always surprising.  People are punched in the face or head and die instantly.  People are struck or pushed and strike their heads on the way to the ground and die.  People are severely beaten on the street for either a trivial reason or the victims of gang violence and die or sustain disabling injuries.  Weapons are used against friends and family.  It is as if people think that you can engage in Hollywood style mayhem and in the end only the bad guys suffer.  The idea that the human body, especially the brain is extremely vulnerable and needs to be protected seems to be suspended.  But that in itself is not the root cause of the problem.

Violence and aggression as a means to resolve interpersonal conflict has been with the human race since prehistoric times.  I have found that Keeley offers the best historical account and analysis at the level of conflicting villages, city-states, and nations.  His original intent was to dispel the notion of the noble savage or the peaceful prehistoric man living in an idyllic situation.  He ends up showing that warfare has been a remarkably constant feature across time.    From his text:

"According to the most extreme views, war is an inherent feature of human existence, a constant curse of all social life, or (in guise of a real war) a perversion of human sociability created by the centralized political structures of states and civilizations.  In fact, cross cultural research on warfare has established that although some societies that did not engage in war or did so extremely rarely, the overwhelming majority of known societies (90-95%) have been involved in this activity." (p 27-28)

In reviewing some of the smaller pacifist pastoral societies,  Keeley cites their low population density as well as their strong moral distaste for violence (p 31) as a likely reason that the Semai could return to a peaceful existence after being recruited by the British to fight against Communist insurgents in the 1950s.  In his chapter "Crying Havoc-The Question of Causes", Keeley takes a fairly detailed look at how war starts as a combination of psychological and political factors starting off with a conflict between two villages where one village owed the other village a debt.  He demonstrates how that that conflict escalates to the point of violence and death for several reasons.  He cites prestige, theft,  adultery, and poaching as common reasons for conflicts with aggression resulting in death.  He concludes that the specific information from an archaeological standpoint is generally difficult to discern and considers broader contexts.

I think the implicit strength of Keeley's work is that he does have a lot of information on warfare and conflict in small and large societies and through all of that information the common thread is that humans resort to violence as a way to resolve conflict, even in situations that are relatively trivial and could easily be resolved by other means.  I  have made that observation repeatedly in clinical situations and the only exceptions are where the violence is driven by a psychiatric disorder.  It is also obvious that learning other strategies can definitely occur often times for the worst possible reasons.  An example is an aggressive man with antisocial personality disorder who typically gets what he wants by threatening or harming people.  If he survives long enough, he may get to the point where that is a losing tactic and he becomes less aggressive with age.  A more common example is the case of people referred to anger control groups through their contact with law enforcement or the courts.  Many find that the strategies they learn in these groups are very effective.

So what is the real lesson in this case?  The real lesson is that this violent confrontation did not need to occur.  All of the energy being expended in the debate about who was the victim and whether or not legal penalties should be assigned misses that point.  It should be fairly obvious that each side can construct a detailed narrative of what happened and how that should affect the outcome.  My courtroom experience has left me with the impression that it is possible that neither narrative is an entirely accurate representation of what happened.  Who would want their future decided by those circumstances?

All of the sensational coverage by the press misses even more widely.   Solving conflicts between people by aggression and homicide is a strategy of primitive man.  It arose out of a time before there was a legal system or designated police.  It came from a time where there was no recognition that every person is unique and society may be less if that unique person is lost.  Until there is the realization that violent confrontations are a toxic byproduct of of our prehistoric ancestors and that they are no longer necessary - there will continue to be unnecessary tragedies.  Society is currently complex and aggression will never be a final solution.  Coming up with better solutions at this point is the next logical step.

George Dawson, MD, DFAPA

Lawrence H. Keeley. War Before Civilization. Oxford University Press, 1997

Insights from the Atomic City

I was fortunate enough to hear Kathleen Flenikken on my way home from an informal dinner meeting last Thursday night.  In a way I was primed for for it because I had just finished a several hour discussion with another psychiatrist.  We ended on a high note - the importance of maintaining your professional inspiration in an era of drudgery and manipulation.  It was about an hour drive back home and I was listening to Minnesota Public Radio.  Despite being the object of Saturday Night Live satire, public radio offers listeners a unique look into the consciousness of very bright people who you would never hear, see or read in more mainstream media.  Ms. Flennikken is no exception.

She was born and raised in Richland, Washington a city built for workers of the Hanford Nuclear Facility.  She is currently the Washington State Poet Laureate.  On the radio program she described her growning up in Richland as the daughter of a nuclear scientist who encouraged her interest in science. She got a degree in civil engineering and returned to the Hanford Nuclear Site to work for 8 years as a civil engineer and hydrologist.  She describes an incident where she became contaminated with nuclear waste and had to be scrubbed free of that material.   More importantly she describes the psychological effect that growing up in this nuclear community and then realizing in retrospect that there were problems that people were either not aware of at the time or they were not told about them.

She describes the excitement of living in an "Atomic City" when she was a kid.  An atom logo was everywhere including the local theatre marquis.  There was an attitude within the town that the scientists, engineers, and administrators that worked there had an understanding of a complicated science.  They were cutting edge.  That buffered them against the outside opinion that nuclear science and industry were potentially dangerous.  Hanford was previously described in the program as a site that had 8 nuclear reactors running to produce plutonium for nuclear weapons and a ninth that was used on a flexible basis for the production of plutonium or fuel for power plants.  It is currently the site of an ongoing multibillion dollar clean up ever since it closed in 1986.  

Ms. Flenniken describes the emotional aspects of her experience and also describes it very clearly in her poetry.  Loyalty to the community was important.  Talking about the risks from nuclear work and what might have not been said was fair game for the residents of Richland but she bristled when criticism came from the outside.  At times when she was concerned about her frame of reference she used the death of a friend's father from radiation induced illness as a reality check.  At one point she makes this remark that I thought was absolutely brilliant and is an important lesson for the times:

"There is this idea out there that there are evil people doing evil things.  The truth is much more dangerous.  Because it's really very good people...very ethical people making lots of mistakes.  There is more a lesson of truth in that than in the idea of some kind of evil doer."  (At about the 10:22 mark of the audio file).

That remark hit me like a bolt of lightening.  Part of it was the presentation.  Ms. Flenniken presents this in a very matter of fact manner.  It was delivered like I imagined a civil engineer might discuss the facts.  As you get older, it is obvious to most people that conflicts are a lot more complex than you thought they were when you were younger.  Apart from the physical demands of the job, military recruits are more psychologically malleable for that reason.  In this case, we have a person who survived a dangerous environment, but an environment that was portrayed in a different way to her community.  She developed a loyalty to that community to the point that she remains conflicted today about what happened and how she should respond.  The problem is captured in her remark.

More generally, I think about a lot of political and professional chaos and how her analysis might apply.  From unnecessary wars to stigma against the diagnosis and treatment of mental illness to ineffective advocacy - emotional biases clouding logical analysis of the situation at every step of the way.  This program is also a good illustration of the power of the spoken word as opposed to the written word and how eloquent a person can be.  Listen to this program and see what you think.

George Dawson, MD, DFAPA

The Story.  Poetry From the Atomic City.  July 11, 2013.

Thursday, July 11, 2013

More Talk on Psychiatry and the Affordable Care Act

I guess the magical thinking about how a purely political initiative with absolutely no grounding in science will affect the practice of medicine will never cease.  The latest speculation is from the Journal of Clinical Psychiatry and commentary from several prominent psychiatrists (see reference) on "The Effects of the Affordable Care Act (ACA) on the Practice of Psychiatry."  I know I have said this before but there is so much wrong with this piece, it is difficult to know where to start.

The centerpiece like most discussions of the Affordable Care Act focuses in integrated care.  I criticized the American Psychiatric Association for backing any proposal that relegates psychiatry to a peripheral supervisory position looking at so-called measurements to determine if the clinic population is "healthy" or if they need more treatment (translation = antidepressants).  There is weak evidence in this article that this model will be the bonus it promises to be.  Care given in the Department of Veteran's Affairs (VA) clinic is given as example of how things might be.  A patient seeing multiple specialists may receive care from multiple specialists without personally having to coordinate that care.  As a patient at the Mayo Clinic - it has been that way for decades.  In fact, if they know you are from out of town they can frequently coordinate that care on the fly so it can all happen the same day!  No patient aligned care teams necessary there.  Just a good system.

There was a statement about how the ACA could hurt psychiatric care of the seriously mentally ill because the states who previously paid for that care will want to bail out.  The discussants point out "although the ACA plans to reimburse certain institutions for emergency inpatient psychiatric care for Medicaid patients, other evidence based practices for treating severe and persistent mental disorders are not usually covered by health insurance."  Let me translate that for you.  That means there will be even fewer inpatient services.  The inpatient care for mental health and severe addictions takes another hit.  After three decades of decimation by the managed care industry and that same industry shifting the treatment cost for these severe mental disorders to the state - we are going to pretend that nobody needs these services and continue to downsize.  After all, there have been no enlightened managed care CEOs to date who decided that these services were actually important enough to adequately fund.  Why would they now that they have the leverage to shift all of the money to the all important Medical Home?

The idea that physicians will be paid by "value rather than volume" had me laughing out loud.  I pictured the Medical Home psychiatric consultant poring over the clinic's latest batch of PHQ-9 scores and deciding which patient's antidepressants needed tweaking based on this checklist and the cryptic note of a primary care provider.  Will we need more checklists for side effects and unexpected effects on the patient's conscious state?  Will we need checklists for neuroleptic malignant syndrome or serotonin syndrome?  What about the FDA's recent concern about arrhythmias?  Cardiovascular review of systems or electrocardiogram?  That will be a lot of paperwork to look over.  I wonder what the consultant will be paid for delivering that level of "value".   Of course all of the discussants were aware of the fact that most psychiatrists will be employees of some sort or another.  Those who have not been assimilated may be in concierge practices or private practice, but good luck interfacing with the ACO.

The all important technology card was played and how that should cause us all to swoon.  Online or computerized therapy was mentioned.  That modality has been available for over 20 years and not a single insurance company or managed care company has implemented it.  Any cost benefit analysis favors an inexpensive assessment (PHQ-9 + low intensity primary care visit) and even less expensive medications prescribed as quickly as possible.  The unmentioned tragedy of the electronic health record is how much psychiatric assessments have been dumbed down.  The loss of information and intelligence due to the electronic health record is absolutely stunning.  Phenomenological elements that require a substantial narrative or interpretation by a thinking psychiatrist are totally gone.  All that is left is a template of binary elements  that are important only for billing and business purposes.  I suppose the lawyers might like the fact that you check the "Not suicidal" box before a patient is hurriedly discharged.

Psychiatry without a narrative or a formulation or a rationale is not psychiatry at all.  In the end that is what the ACA leaves us with.

George Dawson, MD, DFAPA

Ebert MH, Findling RL, Gelenberg AJ, Kane JM, Nierenberg AA, Tariot PN. The effects of the Affordable Care Act on the practice of psychiatry. J Clin Psychiatry. 2013 Apr;74(4):357-61; quiz 362. doi: 10.4088/JCP.12128co1c. PubMed PMID: 23656840.

Tuesday, July 9, 2013

The Lancet's Illogical Digression

The latest editorial in the Lancet has an illogical digression.  The brief note starts out by stating that there will soon be a revolution in psychiatry based on a genomics study published in the Lancet.  It concludes with a digression to a discussion of about the provision of mental health services across the lifespan with a pejorative connotation:

"The child with ADHD at 7 years could be seen by a child psychiatrist, but at the age of 18 often loses access to mental health services altogether, until he presents with a so-called adult mental health problem. Substance misuse and personality disorders may complicate the picture."

It seems to me that practically all adult psychiatrists would not have any difficulty at all in getting a history of an earlier diagnosis of ADHD and deciding how that would be treated.  I wonder if the Lancet's editors would make the same commentary on childhood asthma presenting to an Internal Medicine clinic.  Would that be "so-called adult asthma"?  The asthma example is instructive because it turns out that what physicians have been calling asthma for decades is more complicated than that.  Recent research has adopted the endophenotype/endotype methodology that has been used to study schizophrenia.  The reason why adults are seen by adult psychiatrists rather than child psychiatrists is the same reason why people stop seeing their pediatricians as adults.  Treating cormorbid substance misuse and personality disorders is just a part of that reason.

As far as the idea that the future of psychiatry is set to change any more than the future of the rest of medicine consider the statement:

"The future of psychiatry looks set to change from the current model, in which ADHD, bipolar disorder, or schizophrenia are considered as totally different illnesses, to a model in which the underlying cause of a spectrum of symptoms determines the treatment."

If that were true, psychiatry would have suddenly catapulted into the most scientifically advanced medical specialty because currently there is no other medical specialty that treats illness based on an underlying genetic cause.   The Lancet's attached paragraph on access to services across the lifespan is accurate, but it really has nothing to do with the possible genetic revolution in psychiatric diagnosis.  If the services are anywhere near as bad in the UK as they are in the United States (Is public health rationing as bad as rationing done by corporations?) there is a widespread lack of services and disproportionate rationing relative to the rest of medicine.

Until psychiatrists, psychiatric services, and mental illness are destigmatized there is no reason to think that a genetic revolution will mean more access to services.

George Dawson, MD, DFAPA

The Lancet.  A revolution in psychiatry.  The Lancet - 1 June 2013 ( Vol. 381, Issue 9881, Page 1878 ) DOI: 10.1016/S0140-6736(13)61143-5.

Cross-Disorder Group of the Psychiatric Genomics Consortium.  Identification of risk loci with shared effects on five major psychiatric disorders: a genome-wide analysis.  The Lancet - 20 April 2013 ( Vol. 381, Issue 9875, Pages 1371-1379 ) DOI: 10.1016/S0140-6736(12)62129-1

Hamshere ML, Stergiakouli E, Langley K, Martin J, Holmans P, Kent L, Owen MJ, Gill M, Thapar A, O'Donovan M, Craddock N. A shared polygenic contribution between childhood ADHD and adult schizophrenia. Br J Psychiatry. 2013 May 23.  [Epub ahead of print] PubMed PMID: 23703318.
Larsson H, Rydén E, Boman M, Långström N, Lichtenstein P, Landén M. Risk of bipolar disorder and schizophrenia in relatives of people with attention-deficit hyperactivity disorder.  Br J Psychiatry. 2013 May 23. [Epub ahead of print] PubMed PMID: 23703314.




Thursday, July 4, 2013

Preference for Psychotherapy or General Dislike of Medication?

I haven't see the study mentioned in many places yet, but there was a meta-analysis of patient preference for psychological versus pharmacological treatment of psychiatric disorders in the Journal of Clinical Psychiatry.  It contained all of the usual buzzwords about evidence based medicine and why this is a hot topic to study because of the possible cost savings and potential for better outcomes if preferences were matched to actual treatments.  Interestingly, in the same month a more high tech approach to matching depressed patients with pharmacotherapy versus psychotherapy came out in JAMA Psychiatry where the independent variable was a brain imaging result rather than patient preference.

The authors here looked at a final sample of 34 studies out of 644 studies that were screened.  They end up with a chart of effect sizes with confidence intervals for each of the 34 studies.  There were a total of 90,483 participants but 78,753 were included in one study.  All of the studies are of depression and anxiety.  They had tried to include studies on schizophrenia and bipolar disorder and found that they were not published.  The authors conclude that their meta-analysis was valid and that there was a consistent preference for psychological treatment in the treatment seeking and non-treatment seeking or recruited patients.  From this the authors suggest that patient prefernce should trump other considerations if the efficacy of both treatments are equivalent.  They question why medication related treatments have increased and psychological therapies have dimished over the past decade.  They suggest that the patients who prefer medication related therapies are non adherent.

In their discussion of the limitations of the study they find there was not enough data to compare combination therapy as a choice, they excluded non-published studies and therefore included potential publication bias, and they were not able to address the question about why psychological treatments were preferred over medication based therapies by a factor of 3:1.

These and other important questions have already been answered on this blog, but don't expect to see any publications on this anytime soon.  Managed care has taken the very evidence based treatments that these authors emphasize and stood them on their head.  I have written many times about the diagnosis of depression using rating scales and the preferred treatment of antidepressants.  If you are using a primary care physician follow up code and a PHQ-9 score result to diagnose depression in ten minutes and treat all of these patients with a generic antidepressant ($4/month) - there is no psychotherapy that compares to that low cost.

All psychiatrists who are actively looking for psychotherapists to treat anxiety and depression encounter the problems of a lack of qualified therapists and more specifically a lack of therapist time in managed care systems.  Managed care systems especially those that are actively managed to reduce outpatient mental health treatment has reduced available therapy in many systems to 2 or 3 sessions of crisis management and essentially limited or eliminated additional services like psychological testing that some therapists require to do their work.  It is no accident that patients seeking psychological therapy can't get it.  It is a conscious business decision.

The second problem is the lack of availability to research proven psychotherapies.  Any psychiatrist doing patient evaluations will hear the story that therapy sessions are often very non-specific, lack goals, and often result in the patient losing faith in the process and stopping the therapy.  Being seen in a psychological therapy is no assurance of a good outcome.  Many patients who are provided with excellent research proven therapy are frustrated with the time commitment and stop because of the cost or number of sessions.  Psychotherapy may look a lot better on paper than the reality of the relationship with the therapist and the logistics of getting to and paying for the sessions.

What can be done to improve the situation right now?  The decision to take a medication for any reason is never a casual one.  Taking that medication reliably is even more significant.  Non medication alternatives and combination therapies to reduce exposure to medications should be available in every clinic.  Instead of screening everyone for a medication on day one, non-medication alternatives should be presented at that time.  There are innovative non-medication therapies such as computer delivered psychotherapy for depression, anxiety and obsessive compulsive disorder.  No clinic appointments.  The therapy is delivered online or by phone any time of the day or night.  With the appropriate implementation, these therapies could be offered as first line treatment to massive numbers of patients.  The human cost is so low they could essentially be made available across an entire health plan for free.  There is no reason why networks of therapy clinics cannot be linked to primary care clinics who see the majority of patients with depression and anxiety.  Any medication alternative can be discussed if the psychotherapy or non-medication intervention works.

From a research perspective if only 34 of 644 studies were suitable for inclusion in a meta-analysis, the problem is clearly not being studied very well.  I think it is important to ascertain patient preference for psychological, combination, pharmacological and other (eg. lifestyle change) therapies in all registered clinical trials.  In clinical practice, it is all part of informed consent for treatment.  I think it is the universal experience of physicians that most people prefer to not take medications.  The negative treatment of psychiatry and  psychiatric medications in the press create an understandable bias against psychiatric medications relative to others as a potential source  of the described phenomenon.   There is some evidence that the advertising of these medications is different and potentially stigmatizing.  We also need better design of clinical trials.  If therapies are in fact equivalent, they need to be tested in actual clinical populations where psychiatrists work.  That includes severely ill patients with comorbidity, patients who are acutely agitated and suicidal, women and children and adolescents.  Much of the discussion of equivalent therapies is based on extrapolation from populations of people who are mildly depressed and in some cases who have enrolled in a number of studies.

This study highlights the current weaknesses in studying how people actually receive psychiatric treatment and how to best approach that from a research perspective.  It points out that we need much better research designs and better patient selection in order to answer even basic questions about the treatment process.  It should be apparent that a research design that is not adequate to describe clinical practice is not a commentary on clinical practice.

George Dawson, MD, DFAPA

McHugh RK, Whitton SW, Peckham AD, Welge JA, Otto MW.  Patient preference of psychological vs pharmacological treatment of psychiatric disorders: a meta-analytic review.  J Clin Psychiatry 2013; 74:6: 595-602.

Saturday, June 29, 2013

To the Left and the Right of Dr. Frances

Allen Frances continues to erect his wall of criticism of DSM-5.  He shows no sign of slowing down even after the DSM-5 was released.  He has written a list of 18 problems in the Psychiatric Times that he characterizes as "glaring mistakes in wording and coding."  He believes that there were "egregious mistakes on almost every page I read."  That is a curious counterpoint to the opinion I heard recently from Jon Grant, MD when he presented the history, process, and details of the development of DSM-5. While Dr. Frances has undeniable DSM-IV experience there is always plenty of room for disagreement.  He comments that he has limited time for a detailed read of DSM and I have even less, so I will concentrate on 2 of his 18 points to illustrate what I mean.

Intermittent Explosive Disorder - Dr. Frances main complaint about this diagnosis is that is "lacks the needed exclusions to exclude the other more common causes of violent behavior."   The diagnostic criteria actually contains the exclusion:

F.  The recurrent aggressive outbursts are not better explained by another mental disorder.....and are not attributable to another medical condition.....or to the physiological effects of a substance.

Specific examples are given and there is also an exclusion for adjustment disorders in children.  The actual number of exclusionary diagnoses listed are essentially the same as DSM-IV and the discussion in the differential diagnosis is more extensive (p 612-613).  My problem is that I don't think this diagnosis actually exists.  That statement comes from over two decades of experience in acute care inpatient psychiatry, community psychiatry, and hospital psychiatry.  These are all settings on the front lines of aggressive behavior.  When the police encounter aggression and there is any question of an intoxication, medical problem, or mental disorder associated with that behavior - those people are brought in to settings where acute care psychiatrists are  involved.  In my experience of assessing extreme aggression up to and including homicide I have never seen a single case where the outbursts were not better explained by another mental disorder.  I don't agree that the exclusion criteria are any different.  I don't believe that this disorder exists.  If it does, the prevalence is so low that this acute care psychiatrist has not seen it in thousands of evaluations of aggressive behavior.

Mild Neurocognitive Disorder - Dr. Frances complaint about this diagnosis is "so impossibly vague that it includes me, my wife and most of our friends.  It will cause unnecessary worry and a rush to useless and expensive testing."

As I read through these criteria I have a much different perspective.  For about 10 years I ran a Geriatric Psychiatry and Memory Disorders Clinic where we did comprehensive assessments of patients with cognitive problems.  I worked with a nurse who would collect detailed information on patient's functional and cognitive capacity before they came into the clinic for my assessment.   A significant number of those patients had a strictly subjective complaint about their memory or cognition.      A large percentage of these patients did not have any insight into the severity of their problem and their typical assessment was: "My memory is no different than any other 60 or 70 year old."  Even though we had generally spent about three hours of assessment time with each patient, at the end of my evaluation we often did not have a clear diagnosis.  We would stick with that person until we did and often times the outcomes were surprising.  We had striking examples of chronic delirious states where the patient was given a diagnosis of dementia based on on neuropsychological testing, and with treatment and reassurance we observed their cognition to clear completely and they were restored to normal cognitive function.

I see the diagnosis of Mild Neurocognitive Disorder as a portal to that level of care.  Based on the list of 10 brain diseases and other medical conditions listed as specifiers the authors of this criteria clearly had that intent.  It is clear to me that any clinic with a high standard of care for patients with cognitive disorders like my clinic had can use this diagnosis both as part of the continuum to more Major Neurocognitive Disorders associated with progressive neurodegenerative dementias and to provide high quality assessments for patients with concerns about any cognitive changes.  Keep in mind that the typical managed care model would use a crude screening test and possibly refer for other psychological testing.  There might not be a physician in the loop who can make the necessary assessments and diagnoses.  Current research in this area also points to the need to identify patients as early as possible, especially as treatments become available.

On these two points I guess I am to the right of Dr. Frances on Intermittent Explosive Disorder and to the left on Mild Neurocognitive Disorder.  But I think the entire argument misses the mark if we think about the issue of psychiatric diagnosis and where the DSM fits in.  Any DSM cannot be used like a phone book to classify hundreds of different presentations to a Memory Disorder and Geriatric Psychiatry Clinic.  The unique conscious states of those individuals and their relative levels of impairment can only be determined by a comprehensive evaluation by a physician who is knowledgeable in all of the possible brain diseases that are suggested as etiologies.  Apart from the obvious increase in complexity for anything that is determined by a central nervous system, getting a diagnosis of Mild Neurocognitive Disorder is no different than getting a diagnosis of "Neck pain" or "Ankle pain" from a primary care physician.  And yes - those primary care diagnoses are very common.

The idea that there are precise criteria that can be written down and applied to make definitive diagnoses is a common misconception of the DSM and other diagnostic schemes.  To emphasize that point, I will end with a quote from Harold Merskey, FRCP, FRCPsych:

"Medical classification lacks the rigor either of the telephone directory or the periodic table."

That is all medical classification and not just the DSM-5.   A good starting point toward realizing the truth in this quote is to stop looking at the DSM-5 like it is a phone book.  You don't get a psychiatric diagnosis from the DSM-5.

You get a psychiatric diagnosis from a psychiatrist.

George Dawson, MD, DFAPA

Merskey H. The taxonomy of pain. Med Clin North Am. 2007 Jan;91(1):13-20, vii. PubMed PMID: 17164101


Tuesday, June 25, 2013

The Real Problem With Managed Care Research

You know the kind of research I am talking about.  The research that shows that managed care is more cost effective and higher quality than fee for service.  This stuff has been out there since the 1990s.  Is there really research like that out there or is it little more than a political exercise?  We have more than a few clues thanks to recent analysis of a Health Affairs article by Kip Sullivan.  The article is titled: "The ‘Alternative Quality Contract,’ Based On A Global Budget, Lowered Medical Spending And Improved Quality"  Sullivan points out that the title of this article is misleading because it suggests that the managed care intervention here "lowered medical spending and improved quality" in the title, but in the body of the work the authors state:

"Our findings do not imply that overall spending fell for Blue Cross Blue Shield of Massachusetts in 2009-2010."  

and a paragraph later:

"This result makes it likely that total Blue Cross Blue Shield payments to groups in 2010 exceeded medical savings achieved by the group that year."  

Sullivan's analysis here is dead-on, especially the idea that "medical savings" can be parsed from overall savings when there is suddenly a large managed care infrastructure.  From some of the places where I have worked, this means bringing in a raft of middle managers who provide no service and generate no income to "manage' the people who are actually providing the care.  In some settings that could mean a "manager" for every 5 - 10 physicians.   If your goal is to cut reimbursement to the providers by just paying them less or sending them fewer referrals while adding a costly overhead of a number of managers who think they can translate their ideas about business into better clinical care - that seems like a recipe for higher costs, record physician dissatisfaction, and disregard for professional quality based guidelines.  Sullivan points out that this specific problem in managed care research has been around since the 1990's

The "higher quality" issue is as interesting.     I encourage anyone interested to download the paper because it is only free until Sunday June 30.  As you read it, take a look at the table labeled "Exhibit 4".  It is a table of quality care measures across both the control groups and the intervention groups.  Although many of the variables are easily defined a couple of issues appear to be clear.  Many seem to be process variables.  In other words, just keeping track of variables and making sure that you are ticking them off gives you more credit.  This is standard procedure in a managed care environment with more case managers.  They can literally be assigned to remind physicians or ward teams to do tasks on a time frame that gives them credit for the process variable.  More administrative manpower should equate to a larger percentage of process variables.

I note that within the quality variables there are two that apply to psychiatry - Depression: Short Term Rx and Depression: Long Term Rx.  There are no significant differences across that study period at the P<0.05 level.  This is interesting at a couple of levels.  First, if this is actually the number of depressed people treated the change after the managed care intervention is not significant.  Secondly, what measures are used to make this determination.  Are these actually depressed people or are they patients scoring above a certain cutoff on a PHQ-9 rating scale?  Third, is the change in percentage of patients treated a legitimate quality marker?  Aren't we more interested in retention in treatment and actual treatment of individual patients treated into remission rather than a cross sectional look at the percentage of patients treated?

The scientific concerns about this paper are numerous.  Like all research (and I mean all research) there are political implications.  The defined intervention here of the Alternate Quality Contract, is basically a primary care physician as gatekeeper model that consumers rejected over a decade ago.  At that point in time, managed care organizations realized that they would need to compete on the basis of providing direct access to specialty care without primary care referrals.  The adaption of the MCOs was to hire their own specialists and build speciality clinics.  The article describes this as basically the "patient centered medical home" (p 1886).   I wonder if the average consumer realizes that the medical home is really a primary care gatekeeper system from the past?

I can't help stressing the importance of article like this one and all research that purports to save money with larger administrative structures that are there in a large part to supervise physicians rather than create administrative efficiencies.  There is no better example than the non-existent mental health system for what this kind of rationing and administrative excess can create.  Diverting money from the direct provision of clinical care into complicated forms of administrative overhead needs to be measured accurately in all of these studies.

George Dawson, MD, DFAPA

Tuesday, June 18, 2013

DSM-5 and Primary Care

In the pre-DSM-5 hysteria, I posted the observation that primary care physicians were not "avid readers" of the DSM and therefore the idea that they would be likely to be influenced by it was erroneous.  Of course I was responding to the propaganda that the DSM-5 was basically a tool for psychiatric hegemony and that upstanding physicians everywhere would be mere pawns of organized psychiatry.  Tens of millions of people would be overmedicated.  There would be total chaos while Big Pharma, the APA, and psychiatrists everywhere lined their pockets with the proceeds of inappropriate prescribing.  In that atmosphere some considered my statement controversial.

From this week's American Medical News:

"....Perry A. Pugno, MD, MPH, vice president for education for the American Academy of Family Physicians, is not surprised that he hasn't heard about DSM-5 from the organization's members.

'From a pragmatic perspective, we don't use (the manual) very much,' he said. 'Most of the things we see we already know the diagnostic criteria for them.' " (page 12, AMEDNEWS, June 17, 2013).

Remember I also said that psychiatrists are not memorizing the DSM-5 either, for a similar reason.

As I think about what happened in the press before the release of DSM-5, mass hysteria is not a bad phrase.  Mass psychogenic illness is probably more politically correct these days but some experts consider an anxious form and a somatic form.  There are numerous examples of each and some references suggest that it is compounded by the presence of social media.  At any rate, the dynamic is very similar to the critical DSM-5 frenzy prior to the release.  In both cases, it can start as a rumor or speculative theory.  If that speculation sounds plausible to a larger group it is accepted and built upon.  At some point the response to the speculation is critical.  Will some experts step in and confirm the original speculation or introduce their own shocking hypotheses?  The reaction of the authorities takes it to the next level.  Will they seem to take the problem seriously. Media coverage makes things worse.  Will additional systems be activated to broaden the response?  Momentum builds and before you know it the anxiety or somatic symptoms are linked with a totally implausible hypothesis.  Some reviews suggest that treatment involves separating the affected individuals and keeping them out of the limelight for a while until the symptoms fade away.   As a psychiatrist who has treated many cases of conversion disorders with neurological symptoms using psychotherapy, I can't imagine competing with several "experts" in the media all having their own theories about the problem.  My guess is that my therapy would be either neutralized or severely protracted.

A lot of these things happened in the run up to the DSM-5.  So I am using mass hysteria here as a metaphor and not a "diagnosis".  I thought I should clarify that because I fully expect  that somebody would accuse me of that and go on to suggest that I am a control agent for somebody (?)

It is also not a diagnosis because it is not in DSM-5 or DSM-IV for that matter.

Hopefully cooler heads will prevail in the next big public controversy about psychiatry.  But I doubt it.

George Dawson, MD, DFAPA