Tuesday, August 20, 2013

The Psychotherapy of Psychosis

I was lucky enough to find the Practical Psychosomaticist blog recently.  Jim Amos is the productive author of this excellent content that is both scholarly and creative.  In a recent post and comment to my reply he said that is was good that I let people know that psychiatrists do psychotherapy.  I thought I would expand upon that and more importantly the psychotherapy of severe psychiatric disorders - something I happened to learn how to do out of necessity of realizing that there needed to be a lot more communication with people than a discussion of medications and symptoms.  It flows from the way psychiatrists are taught to do comprehensive assessments but these days it is not obvious.

As previously noted, my training occurred at a time when there was often open warfare between the biological psychiatrists and the psychotherapists.  Even though most of the political power in departments had shifted to biological psychiatry there was still an opportunity and expectation that residents would learn how to do psychotherapy.  For my last three years of training I saw at least three patients a week in hourly psychotherapy and was supervised on a 1:1 basis for each of those hours by a psychiatrist or psychologist who was also a therapist.  Those sessions were frequently recorded and the supervisors listened to the audio or reviewed detailed process notes of the sessions.  I had additional supervision for patients who were seen in a more standard follow up clinic setting or in a community mental health center.  I had additional supervision for couples therapy, family therapy, and therapy with children and adolescents.  There were ongoing seminars on psychotherapy  and direct observation experts conducting psychotherapy.  As a medical student, I also had a very unique experience with infant psychotherapy set up and run by two very innovative psychiatrists at the Medical College of Wisconsin.

Talking to people about their problems and how to solve them always seemed natural to me.  I think that there is always an open question about whether good psychotherapists are born and not made.  It makes sense that patience and empathy required are not evenly distributed across the population.  When a psychiatrist learns that you may have an interest in psychiatry as a medical student, the usual areas for exploration is whether you have had personal experience with mental illness or whether one of your family members has.  Even in grade school, I had extensive contact with people both inside and outside of my family with mental illness.  When you have that experience it leads to an appreciation of the whole spectrum of human  thought, emotion and behavior.  Denying mental illness, addictions and brain disorders doesn't work.  I heard the stories and personally witnessed severely disabled people being cared for at home with minimal resources.

Having that type of lifetime experience can result in a better understanding for the problem, but it does not lead to the type of technical expertise needed to talk with people in a therapeutic manner.  I can recall my initial surprise when I witnessed a psychoanalyst tell a sobbing patient that he had to stop crying and try to tell us the details of his history.  It seemed like the wrong thing to say, but it turned out to be highly effective in terms of changing the tenor of the interview and making it more productive.  Seeing psychiatrists interact with patients and studying the theory was one of the more valuable aspects of psychiatric training and it occurred in hospital wards, clinics, research settings, texts, videos, and seminars.  As the influence of psychodynamics seemed to decrease other models were also studied most notably cognitive behavioral therapy of CBT.   It was similar in many ways to what had been taught as supportive psychotherapy as opposed to insight oriented psychodynamic psychotherapy.   Psychotherapy supervisors practice varied schools of therapy and I mine were psychoanalysts, psychodynamicists, a Rogerian, behavioral therapists, cognitive behavioral therapists and supportive psychodynamic therapists.  I eventually learned how to do an assessment and figure out what psychotherapeutic approach might be the most useful.  It also provided me the skill needed to discuss past psychotherapies with patients I would be seeing in assessments. the efficacy at the time and why it might not be working several years later.

The psychotherapy of severe psychiatric disorders is a relatively new innovation.  As part of my studies in the past I had read about Harry Stack Sullivan's approach and more recently (but still 40 years ago) the work of Grinker.  There was some crossover with Kernberg and Kohut and their work on narcissism and borderline personality disorders.  Some of the early large scale work on the psychotherapy of schizophrenia (1,2) showed that supportive psychotherapy may have an impact and that insight oriented psychodynamic therapy probably did not.

On my first job at a community mental health center, I sent a letter to the founder of Dialectical Behavior Therapy (DBT) and she sent me a copy of her research manual from field trials that were being conducted in the late 1980s.  I used Beck and his associates as resources to learn about Cognitive Behavior Therapy (CBT).  In the process I noted a common reference to what Beck described as the initial case of CBT in an outpatient setting with a patient who had a diagnosis of schizophrenia.  Practically all of the CBT in the 1980s and 1990s was focused on depression, anxiety, and later severe personality disorders.

After three years at the community mental health center, I moved on to an inpatient setting for the next 22 years.  Most of the people I saw there has severe mood and psychotic disorders or problems with severe addiction.  The experience a lot of people have in these settings is not very good.  It seems like a situation that is set up for containment and for many people it is.  They found themselves in a crisis and many cases hospitalized for and excessive amount of emotion that fades rapidly after they leave the original situation.  In other cases the emotion does not fade and they remain in a crisis in the hospital.  Some people recognize that something is happening to them and they need a safe place to recover.   Everyone has a theory about how they came to the hospital and whether or not they may need treatment.  Inpatients on a mental health unit are often there because of legal holds based on dangerousness laws that vary from state to state.

I was able to talk with people in an unlimited manner in this setting, sometimes many times a day.  I was able to engage them in a process that looked at their theories about life and about the problems that led them to the hospital.  We could discuss at length what types of treatments they were interested in.  I was also able to talk with them about delusions, hallucinations, and psychotherapeutic approaches to address those symptoms.  At one point along the line, I noticed there was an interest in supportive psychotherapy with patients experiencing psychotic symptoms and it was summarized in 1989 in a remarkable book by Perris (3).  The research evidence and theory continued to build over the next two decades with excellent courses at the annual American Psychiatric Association meeting.  That included a 2009 course given by several experts in the cognitive behavior therapy of severe psychiatric disorders (4).

Decades of training and practice has undoubtedly made me a better psychotherapist. It taught  me why you "practice" medicine and don't master it.  It has also made me mindful of how much of the interactions between psychiatrists and the people they see, need to be seen from a psychotherapeutic perspective.  That includes the environment a person is seen in and anyone else in that environment that they may encounter.  It also allows for a lot of treatment flexibility that reflects a comprehensive psychiatric assessment.  The best diagnostic assessment may suggest a medication is the best solution for a particular set of problems, but knowing you can also address that problem in a different way if the medication cannot be tolerated, if it fails or if the person changes their mind is a game changer.

Sometimes all it takes is an open and highly detailed conversation.

George Dawson, MD, DFAPA

1: Stanton AH, Gunderson JG, Knapp PH, Frank AF, Vannicelli ML, Schnitzer R, Rosenthal R. Effects of psychotherapy in schizophrenia: I. Design and implementation of a controlled study. Schizophr Bull. 1984;10(4):520-63. PubMed PMID: 6151245.

2: Gunderson JG, Frank AF, Katz HM, Vannicelli ML, Frosch JP, Knapp PH. Effects  of psychotherapy in schizophrenia: II. Comparative outcome of two forms of treatment. Schizophr Bull. 1984;10(4):564-98. PubMed PMID: 6151246

3.  Perris C.  Cognitive therapy with schizophrenic patients.  The Guilford Press. New York, NY, 1989.

4.  Wright JH, Turkington D, Kingdon DG, Basco MR.  Cognitive-Behavior Therapy for Severe Mental Illness.  American PSychiatric Publishing, Inc.  Washington, DC, 2009.






Saturday, August 17, 2013

Straight Talk About the Government Dismantling Care for Serious Mental Illness

The ShrinkRap blog posted a link to an E. Fuller Torrey and D.J. Jaffe editorial in the National Review about how the government has dismantled mental health care for serious mental illnesses and some of the repercussions.   Since I have been saying the exact same thing for the past 20 years, they will get no argument from me.  Only in the theatre of the absurd that passes for press coverage of mental illness and psychiatry in this country can this subject be ignored and silenced for so long.  It was obviously much more important to see an endless stream of articles trying to make the DSM-5 seem relevant for every man.  The stunning part about the Newtown article is the commentary about what government officials responsible for policy have actually been saying about it.

The authors waste very little time examining the sequence of events in the Obama administration following the Newtown, Connecticut mass shooting.  President Obama initially stated he would "make access to mental health care as easy as access to guns." and set up a Task Force under Vice President Biden to make recommendations.  The authors argue that the agency that was consulted, the Substance Abuse and Mental Health Services Administration (SAMHSA) promotes a model of treating mental illness that has no proven efficacy, does not discuss serious mental illnesses in its planning document, ignores effective treatments for serious mental illnesses and actually goes so far as to fund programs that block the implementation of effective treatment programs.  In an example of the obstruction of effective programming by SAMHSA funded programs following the Newtown mass shooting:

"But, alas, the situation is even worse. SAMHSA does not merely ignore effective treatments for individuals with severe mental illness. It also funds programs that attempt to undermine the implementation of such treatments at the state and county level. One such program is the Protection and Advocacy program, a $34 million SAMHSA program that was originally implemented to protect patients in mental hospitals from abuse. It was kidnapped by civil-liberties zealots and has been used to block the implementation of assisted outpatient treatment, funding efforts to undermine it in at least 13 states. For example in Connecticut, following the Newtown massacre of schoolchildren, the federally funded Connecticut Office of Protection and Advocacy for Persons with Disabilities testified before a state-legislature working group in opposition to the proposed implementation of a proposed law permitting court-ordered outpatient treatment for individuals with severe mental illness who have been proven dangerous. The law did not pass."  (page 3, par 2.)

In other words, a SAMHSA funded program was opposed to a law in Connecticut that could potentially reduce violence from persons with severe mental illness.

SAMHSA administrators are quoted at times in the article. Any quote can be taken out of context but the characterizations of severe mental illness as "severe emotional distress", "a spiritual experience" and "a coping mechanism and not a disease" reflect a serious lack of knowledge about these disorders.  The idea that "the  covert mission of the mental health system ...is social control" is standard antipsychiatry philosophy from the 1960s.  How is it that after the Decade of the Brain and the new Obama Brain Initiative  we can have a lead federal agency that apparently knows nothing about the treatment of serious mental illnesses?  How is it that apart from  some fairly obscure testimony, no professional organizations have pointed this out?  How is it in an era where governments at all levels seem to demand evidence based care, that a lead agency on mental health promotes treatment that has no evidence basis and ignores the treatment that is evidence based?

Having been a long time advocate for the prevention of violence by the treatment of severe mental illnesses my comments parallel those of the authors.  Inpatient bed capacity in psychiatry has been decimated.  They point out that there are only 5% of the public psychiatry beds available that there were 50 years ago.  It is well known that people with mental illnesses are being incarcerated in record numbers and some of the nation's county jails have become the largest psychiatric institutions.  Where are all of the civil liberties advocates trying to get the mentally ill out of jail?

Only a small portion of the beds available can be used for potentially violent or aggressive patients and that number gets much smaller if a violent act has actually been committed. Most of the bed capacity in this country is under the purview of some type of managed care organization and that reduces the likelihood of adequate assessment or treatment.  The discharge plan in some cases is to just put the patient on a bus to another state.

Community psychiatry is a valuable unmentioned resource in this area.  In most of the individual cases mentioned in this article, the lack of insight into mental illness or anosognosia is prominent.  It is not reasonable to expect that a person with anosognosia will follow up with outpatient appointments or even continue to take a medication that treats their symptoms into remission.  Active treatment in the community by a psychiatrists and a team who knows the patient and their family is the best way to proceed.  All of this active treatment has been cost shifted out of insurance coverage and is subject to budget cuts at the county and state level.

Civil commitment laws and proceedings are probably the weakest link in treatment.  Further cost shifting occurs and violent patients often end up aggregating in the counties with the most resources.  Even while they are there, many courts hear (from a budgetary perspective) that they are committing too many people and the interpretation of the commitment law becomes more liberal until there is an incident that leads to the interpretation tightening up again.  Bureaucrats involved often become libertarians and suggest that commitment can occur only if an actual violent incident has happened rather than the threat of violence.

Although Torrey and Jaffe are using the extreme situation of violence in the seriously mentally ill to make their point, the majority of the seriously mentally ill are not violent.  They need the same resources.  It has been thirty years of systematic discrimination against these people, their families and the doctors trying to treat them that has led to these problems.  I pointed out earlier on this blog the problem I have with SAMHSA and the use of the term "behavioral health".  The problems with SAMHSA and current federal policy are covered in this article and I encourage anyone with an interest to read it.  If history is any indication, I don't expect anything serious to come of the criticism.  I anticipate a lot of rhetorical blow back at Dr. Torrey.  But as a psychiatrist who has worked in these environments for most of my career, his analysis of the problem is right on the mark.

George Dawson, MD, DFAPA

E. Fuller Torrey & D.J. Jaffe.  After Newtown.  National Review Online.

White House.  Now Is The Time.  The President's plan to protect our children and our communities by reducing gun violence.  January 16, 2013.

Tuesday, August 13, 2013

Lessons on Medical Pricing and Service from My Toyota Dealer

I really like my Toyota dealer.  They advertise that they are one of the most successful dealerships in Minnesota and I have no reason to doubt that.  Everytime I end up waiting in their customer service area there are anywhere from 30 - 50 people waiting with me.  Everybody checks out at the same cashier.  Everybody hears the conversation between the customer and the service manager and basically the fact that the customers seem uniformly satisfied and all of their problems have been addressed.  As I sat there today looking at a long line of satisfied customers I thought of a comparison with medicine.

Let me start off discussing my parallel by saying that I have always been a proponent of medical pricing being one of the most significant problems in health care.  The example that I frequently post is the difference between an MRI scan of the cervical spine in Japan ($150) to the cost of the same scan in the US ($1200).  But in other posts I have compared the costs of formulary to non-formulary drugs and the steep discounts that frequently apply to services by physicians.  Economist Ed Lotterman discusses the effects of price discrimination in health care at this link and the reason why health care companies do it.  They make more money even though they end up charging much higher prices to the people who can afford it the least.  There are many other subtle (if you don't think about it too long) ways of rationing medical services to provide a high volume low quality product that really does not address the problems that most people want.  As an example, I was shocked in 1987 when I encountered for the very first time a physician who refused to answer any questions about a "second" problem.  He was obviously annoyed when I asked him about a medical concern that was not identified as the reason for the appointment, even though I am certain he could have answered the question in two minutes.  The people at my Toyota dealer frequently have two or three or even five problems and the service manager calmly explains what has been done  or what the cost will be in the event of a major repair.

As I thought more about it, my name was eventually called and I walked over to pick up the car and review what had been done.  I thought I might need a price list for a comparison, so I walked back out into the service area and talked to a service manager who looked like he was about my age.  I asked him for a price list and thought about what kind of reaction that  would get in a medical clinic - not just the price list but asking additional questions after the appointment with the doctor was officially over.  He enthusiastically replied: "No problem at all sir.  It is tricky to find on our web site.  Let me show you how to get it there.  And let me print it out for you.  My usual printer doesn't do a good job, so let me send it to a better network printer."  Within a minute it was in my hand.  None of the gasping and eye rolling that you might expect in a medical clinic.

What is a fair comparison?  I decided against emergency departments.  Car repairs are generally not life or death, even though a lot of people with non-emergency problems end up staying in emergency departments for a long time.  I decided that urgent care and primary care clinics were problems the best comparisons.  The Toyota dealer has three levels of maintenance based on mileage or time:

Yellow Service
Every 4 months
$72.95
Green Service
Every 12 months
$219
Blue Service
Every 24 months
$379


The price list shows all of the specific tasks that this dealer does for car maintenance and the task list is longer as the price increases.  I can't post any medical comparisons because the actual price that you will pay is unknown.  If you are insured, your insurance company generally negotiates prices with a clinic that are generally much lower than you would pay if they billed you their usual retail price.  Practically all physician billing would occur at the Green or Blue Service level.  As I look at the Yellow service, it is strictly maintenance without the services of a diagnostician.  How many times have you had to see a doctor in order to get lab tests or an x-ray?  There are a list of things you can get from Toyota without seeing a mechanic.

What about affordability?  Everybody in the service center today was driving a Toyota ranging from essentially new to at least 6 years old (the age of my car).  Everyone with a fairly new car wants to keep the warranty current by doing the suggested maintenance.  There will always be some outliers who never change their oil, but let's assume that people generally want to protect their investment for at least 6 years or 100,000 miles.  What is the trade off in terms of investment at risk driving service fees?  If we look at the current per capita health care expenditure in the US it stands at $8,233 per person per year.  According to the Kaiser Family Foundation in 2012, the average cost of insurance for a family was $15,745 with the worker paying $4, 316.  Worker only coverage averaged $5,615 per year with the annual cost to the worker of $951.  The current cost of health care for a retired couple at age 65 with Medicare is estimated to be $220,000, not including nursing home care.

The 5 or 6 year cost of health insurance for a family costs the same amount as just about any brand new Toyota on the lot.  There are a couple of potential questions about the value of the purchase.   If we are considering non emergency and routine medical care, does the purchaser of health insurance get the same value as the purchaser of a new Toyota?  Or is medical insurance purchased strictly to protect the family against bankruptcy associated with a medical catastrophe?  And do your get the same level of service?

On the service level,  I don't think that primary care or urgent care clinics can compare to my Toyota dealer.  I just learned today that they are open until midnight and they see all of the walk ins who want to be seen at all times.  Their pricing is completely transparent and affordable to everyone who pays the same amount for health insurance that they would pay to purchase a new Toyota every 6 years.  That is basically any family purchasing health insurance.  Technology is a frequent argument to justify the high cost of American medicine, but people purchasing hybrids are the beneficiaries of a $6 billion research project by Toyota that put them at the forefront of that technology and made it as cost effective as purchasing any other new car.  Technological innovation like that in medicine rarely translates into a cost effective solution for patients that quickly.

Without government mandates and the threat of bankruptcy, I think health insurance would be a very difficult product to sell based solely on market factors and the actual service you get for the money.  That is what health care companies like to call value.  I guess the bright side is that we all don't have to purchase an insurance product that would allow us to get a new car.  It is hard to imagine how bad that product and the service of that product would be.

George Dawson, MD, DFAPA

Disclosure:  Not a stockholder in Toyota.  My only interest in Toyota is in keeping my car running well.

References:

Ed Lotterman.  Price discrimination:  Free market at work.  November 15, 2009.

Ed Lotterman.  Trip to hospital illustrates complexities of health care pricing.  December 23, 2012.

Friday, August 9, 2013

Don Draper loses it - Can he be saved?

Don Draper, the main character in AMC's MadMen is without a doubt the most complicated character I have ever seen on television.  I have often thought about whether or not I have seen him over the years. What would be the most likely way that he would come to the attention of a psychiatrist?  I can remember several years ago he went in to see his primary care physician and was told that he had hypertension (150/100).   The prescribed course of action was a combination of a barbiturate and reserpine.  Being seen as a complication of that therapy might be one way.  He also has demonstrated that he has a progressive problem with alcohol.  Everyone on MadMen drinks at work, and it is typically hard liquor.  At one level it seems to be part of the Madison Avenue culture, but Don has taken it many steps beyond that to overt intoxication and vomiting in the office.  Even in the 1960s, this behavior could result in a period of detoxification and residential treatment.  If he really was mixing alcohol with barbiturates that is a setup for an accidental overdose or a withdrawal seizure.

Another avenue to consultation might have to do with his philandering behavior.  Over the course of the show he has had two wives and he has had extramarital affairs in both marriages.  During his second marriage, he befriends a cardiothoracic surgeon in his building.  He admires this man and he seems like the only real friendship that Draper has been interested in over the course of the series.  That does not deter him from sleeping with the surgeon's wife.  During his previous marriage, he had affairs with numerous women resulting in his wife finding out and on one occasion he was punched in the face by an irate husband.  None of that has had much of an impact on his lifestyle that consists of drinking a lot at work and frequently using work as an excuse to neglect his wife and family and continue extramarital sex.

Whenever I think of philandering, I think of Frank Pittman's work that I read fresh out of residency training.  In outpatient practice, anxious and depressed persons have two major sources of stress - their job and their significant relationship.  It is fairly common to see significant others and spouses during the treatment of an individual.  The usual requests are for a basic explanation of the diagnosis and treatment plan, but in more complicated circumstances an analysis of the spouses behavior.  I think that Pittman may have seen Don Draper as a subtype of philanderer that he refers to as a "hostile philanderer" who is not empathic toward women.  A more psychodynamic approach might suggest that Draper is narcissistic and that might be the driving force behind his lack of empathy.  In either case, the therapy focused on this problem is complicated and requires skills that focus on neutrality and a focus on the goals of therapy rather than an endless description of the problem.

A more recent approach might employ a model of sexual addiction rather than looking at the problem as repetitive marital infidelity.  One of the conceptualizations of the problem is that it can be a behavioral addiction like food and gambling and that it involves and activates the same neurobiological substrates that addictive drugs and alcohol do.  Some authors have developed criteria sets for sexual addiction based on the characteristics of substance use disorders, but this disorder is not listed in the main DSM or the section on "Conditions for Further Study."  Some people will come in for assessment based on someone telling them that they have a sex addiction or their participation in 12-step recovery groups with that focus.  Experts in the field have produced reviews of psychotherapy and pharmacotherapy that might be useful for this problem, but at this point most psychiatrists would see this as an issue for psychotherapy and would have reservations about the medical treatment of a model that has not been widely accepted.

There is also a more biological approach to infidelity.  Some people may present with requests for a medication that has decreased libido as a side effect or a medication that produces that result by its physiological effect.

In the season 6 finale, Don Draper is trying to seal an advertising deal with Hershey.  The staff knows they are swimming up stream, because Hershey has outstanding brand recognition and packaging.  Don has to sell them on a campaign that takes their advertising to a new level.  He tells a poignant story about mowing the lawn as a kid and his father taking him to the store later so that he could buy a Hershey bar.  That candy symbolizing the bond between a father and son and a bridge to those memories in the past.  His associates in the room are beaming.  They think he has hit it out of the park.  A few minutes later, he tells everyone in the room that the story he has just told never happened.  He says he was raised in a "whorehouse" and one of the prostitutes would ask him to go through the trousers of her clients, looking for extra money.  He would get some of that change and buy a Hershey bar.  When he ate it he was living vicariously like the kid in his original story.

Can Don Draper be saved?  In a way he already has.  He was at a clear disadvantage in terms of childhood trauma and adapted to that by becoming somebody who he was not and trying to consciously block out that previous existence.  We get a glimpse of one of his strategies from an earlier scene.  I think that from an artistic point of view the writers are saying that he cannot.  He could no longer suppress the truth about himself at a critical juncture in his career.  That is true not only with his clients and coworkers but also with his children.  In the final scene of the season, he is standing with his children in front of the whorehouse where he was raised.  His daughter looks at him for some kind of reaction.

From a psychiatric standpoint the answer is a qualified yes.  Certainly any psychiatrist could come up with a plan that might address some of the areas highlighted above.  It would take a comprehensive formulation of his problems.  Framing the problem as simple anxiety or depression or some other DSM-5 diagnosis is an obvious mistake.  In many practice settings that pressure is there.  There is also the chance that he might walk into an AA meeting for any number of reasons and make some changes to get his life back on track.  He might even get some advice from a friend or coworker about a particular aspect of his problems that he might decide to pursue and that could lead to some changes.  The main drawback to advice from a peer is that he has no peers and no close friends.   Human consciousness is complex and there are many roads to change.

George Dawson, MD, DFAPA

Frank Pittman.  Private Lies - Infidelity and the Betrayal of Intimacy.  WW Norton and Company, New York, 1989.

Shoptaw SJ.  Sexual addiction in Ries R, Fiellin DA, Miller SC, Saitz R. Principles of Addiction Medicine. 4th ed. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins; 2009:  pp 519-530.

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