Categories
Consult-Liaison Education Medicine

Personality Disorders (II).

Now that we know how personality disorders are defined, we can discuss specific types of personality disorders.

DSM-4 divides personality disorders into three “clusters”: A, B, and C. These clusters are based on “descriptive similarities”. The authors make an important comment:

It should be noted that this clustering system, although useful in some research and educational situations, has serious limitations and has not been consistently validated.

This means that these “clusters” can be useful in theory, but may be irrelevant, illogical, and a bunch of hooey in application.

Furthermore, DSM comments:

… individuals frequently present with co-occurring Personality Disorders from different clusters.

(The world of cookies would be easier to understand if there were only butter, fruit, and nut cookies, but sometimes you end up with a platter of apricot and pistachio cookies, hamantash cookies, and shortbread and chocolate chip cookies.)

The language used to describe the clusters of personality disorders (and the personality disorders themselves) can be interpreted as criticism. Instead of recognizing the clustering system as a heuristic, people might overlook its “serious limitations” and assume that the clustering system provides definitions.

This can lead to the unfortunate practice of people saying things like, “He’s definitely personality disordered,” or “She’s such a borderline,” when, in fact, no personality disorder is present and people actually mean, “I’m getting so annoyed with that person”.[1. You feel what you feel. Own it. That will make you a more effective clinician. If you don’t acknowledge your own emotions, they will come out in some other way that might affect your behavior in ways you don’t like.]

You can see how this starts upon reading how most medical students learn about the three clusters of personality disorders:

“Here’s a mnemonic for the personality disorders. Remember the three ‘W’s: Weird, Wacky, and Worried. Cluster A is ‘weird’, cluster B is ‘wacky’, and cluster C is ‘worried’. That’ll help you keep the personality disorders straight on your shelf exam.”

So, after that entire preamble, here are the verbatim DSM definitions of the three clusters of personality disorders:

Cluster A includes the Paranoid, Schizoid, and Schizotypal Personality Disorders. Individuals with these disorders often appear odd or eccentric.

That’s where the “weird” comes from.

Cluster B includes the Antisocial, Borderline, Histrionic, and Narcissistic Personality Disorders. Individuals with these disorders often appear dramatic, emotional, or erratic.

And that’s where the “wacky” comes from.

Individuals with “cluster B traits” or personality disorders within this cluster most commonly come to clinical attention because their behaviors often cause distress both to themselves and those around them.

Cluster C includes the Avoidant, Dependent, and Obsessive-Compulsive Personality Disorders. Individuals with these disorders often appear anxious or fearful.

And there’s “worried”.

I’m not a linguist, but it is easy to see here how the use of language can greatly affect the way we think about events, behavior, people, etc. When we distill personality disorders down to single words, we forget the other criteria for personality disorders (the “enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual’s culture, is pervasive and inflexible, has an onset in adolescence or early adulthood, is stable over time, and leads to distress or impairment”).

That mental shortcut can significantly affect how we treat patients with these conditions. This is why I try to remain vigilant in what words I use to describe patients both to myself and others.

Next: We’ll start going through the specific personality disorders and interesting data associated with them as I review the literature.


Categories
Consult-Liaison Education Medicine

Personality Disorders (I).

I’ve been asked to give a talk about personality disorders.[1. Writing about personality disorders here, I hope, will help me organize my talk and post more frequently.]

It’s akin to being asked to give a talk about cookies. (Do I discuss the distinctions between bar, drop, and sandwich cookies? Do people want to hear about the varieties of butter, fruit, and nut cookies? Should I compare cookies with other confections? What about the term “biscuit”?)

I suspect that part of the reason why I find the breadth of the subject daunting is because I’ve never given a talk on personality disorders. (I also prefer teaching certain topics, such as schizophrenia and suicide risk assessment. My training in dialectical behavior therapy (DBT), though, has helped me craft talks about difficult interactions with clinical settings and borderline personality disorder. DBT has also significantly influenced my clinical practice; I am grateful for the opportunity to learn about this early in my training.)

DSM-4[2. Yes, DSM-5 is now out—I am already behind.] provides the following criteria to define a personality disorder:

A. An enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual’s culture.

Personality disorders account for culture. This is why, in the United States, it is not considered aberrant when someone goes to church every Sunday because he believes that a crucified man was resurrected from the dead after three days in a tomb.

This pattern is manifested in two (or more) of the following areas:

Someone once commented that these diagnostic criteria are something like “ordering from a Chinese menu”. (No comment.)

(1) cognition (i.e., ways of perceiving and interpreting self, other people, and events)

“Cognition” can be summarized as “thoughts”.

(2) affectivity (i.e., the range, intensity, lability, and appropriateness of emotional response)

“Affectivity” can be summarized as “emotions”.

(3) interpersonal functioning

This refers to relationships (both “deep” and “not so deep”).

(4) impulse control

… or, “What someone does when they feel an urge: can he sit with it? does she feel compelled to react immediately? if she does react, what is the reaction?”

To be clear, just because someone waits a while before demonstrating a reaction to an event does not necessarily mean that his impulse control is “good” (consider someone who reacts by planning and then executing a murder).

B. The enduring pattern is inflexible and pervasive across a broad range of personal and social situations.

This is how one of my teachers impressed this criterion upon me: Most of us have all of the personality disorders, not just one of them. This means that we have a variety of ways (thoughts and behaviors) of coping with stress. This suggests healthy coping.

If, for example, I hear bad news, I might go for a walk, spend time with friends, or eat a sack of cookies.

If my sole coping skill consisted of eating sacks of cookies at home, at work, with friends, and by myself, that could suggest an inflexible and pervasive pattern.

C. The enduring pattern leads to clinically significant distress or impairment in social, occupational, or other important areas of functioning.

The act of eating sacks of cookies probably won’t get me into too much trouble. If, however, I only talked about cookies, kept five sacks of cookies underneath my pillow “just in case”, insisted that my employer pay me in sacks of cookies, and refused to go out with my friends unless they took me to a bakery, that would probably lead to “significant impairment” in multiple areas of my life.

D. The pattern is stable and of long duration, and its onset can be traced back at least to adolescence or early adulthood.

This is why we generally avoid a diagnosis of a personality disorder until someone is at least 18 years old, though brain “maturity” may not actually occur until someone is closer to age 25.

Some psychiatrists insist that they can diagnose a personality disorder after meeting someone once. I disagree.

E. The enduring pattern is not better accounted for as a manifestation or consequence of another mental disorder.

If someone’s thoughts and behaviors are most consistent with a diagnosis of schizophrenia, then diagnoses of schizoid, paranoid, and schizotypal personality disorders do not apply.

F. The enduring pattern is not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication) or a general medical condition (e.g., head trauma).

A psychiatrist’s primary job is to rule out medical causes of a condition that appears psychiatric. (That is often easier said than done.)

If that is the general definition of a personality disorder, what about specific personality disorders? Should I discuss personality disorders discussed in ICD-10? What about the personality disorders described in previous editions of the DSM? (Only four have been present across all four editions of the DSM.) Where is the balance between theory (what the conditions are) and application (the function of the behaviors and how to work with people who have these conditions)?


Categories
Consult-Liaison Education Informal-curriculum Lessons Medicine Observations

Informal Curriculum: Lesson 5.

Another recommendation in the informal curriculum is to regularly acknowledge patient strengths.

Physicians are specifically trained to look for problems. The purpose of diagnosis is to identify what is wrong with a patient’s health. As a consequence, we spend a lot of time thinking and talking about what is ill, incorrect, out of order, defective. Our worldview can shift so that we overlook what is healthy, robust, flourishing, hopeful.

Patients, like all people, like to hear what they are doing well. None of us like the experience of receiving only negative feedback, particularly when we are doing the best that we can. Acknowledging patient strengths explicitly recognizes the contributions patients make towards improving their health. We want them to continue to do those beneficial things.

Physicians are in positions of authority and power. Taking the time to comment on what a patient is doing well can strengthen the relationship between patient and physician. Furthermore, this positive feedback can encourage patients to continue their efforts in improving or maintaining their health status. (Positive reinforcement[1. Positive reinforcement is an active intervention that increases the likelihood that a specific event will happen. Example: A woman wears an orange blouse to work. People tell her that the orange blouse looks great on her (intervention). As a result, she wears the blouse more often.] is often more effective than negative reinforcement[2. Negative reinforcement is the removal of something unpleasant that increases the likelihood that a specific event will happen. Example: A woman wears a green blouse to work. People incessantly whine that she looks better in an orange blouse. She wants the whining to stop (i.e. removal of something unpleasant). As a result, she might wear an orange blouse more often.] or punishment[3. Punishment is an active intervention that is meant to increase the likelihood that a behavior will stop. Example: A woman wears a green blouse to work. People spit at her because she is wearing that blouse. She learns not to wear the green blouse… but note that she does not know what the desired behavior is. Compare this with negative reinforcement.] in changing behavior.)

Acknowledging patient strengths need not be saccharine. Simple observations can serve as encouragement:

  • You’re checking your blood sugars regularly.
  • I see you’ve gotten out of bed three times already today.
  • You’re keeping a record of how much alcohol you’re drinking.

These observations may ostensibly appear neutral. However, patients know that doctors pay attention to those things that we find important. This attention is often highly valued currency. Patients may find themselves attending to and doing these desired behaviors more often as a result.

How often do you explicitly point out what people are doing well? Do you find yourself commenting more on problems?

  1. ”Tell me what you think helped keep your blood sugars within this healthy range on this day.” or “A lot of your blood sugars are too high.”
  2. ”You’ve helped your body recover by getting out of bed.” or “You should get out of bed more often.”
  3. ”What’s helped you limit your alcohol use to a bottle of wine on that night?” or “On most nights you’re still drinking two bottles of wine. This is a problem.”

Of course, there are occasions when we must discuss problems and focus on what is wrong. This is not a call to willfully disregard what is out of order. This is a reminder to balance what we say.

And lest these suggestions seem foolish, consider your own experiences with your supervisors. We like it when people recognize and praise the work that we do. It’s a drag when we only hear about our lack of productivity, patient complaints, or the urgency to discharge patients from the hospital. Most people want recognition and encouragement for their efforts.

Patients are no different.


Categories
Consult-Liaison Education Informal-curriculum Lessons Medicine Observations

Informal Curriculum: Lesson 4.

Another lesson in the informal curriculum is how to interrupt patients.[1. The skill of interrupting is also useful for unfocused patient presentations, preoccupied nurses, and rambling doctors.]

Due to financial challenges in the healthcare system, patients and physicians have decreasing amounts of time with each other. Doctors need specific information for an accurate diagnosis, which guides appropriate treatment. Sometimes patients want to share information that they believe to be important, but it may not be clinically relevant.[2. Physicians should take care: Sometimes the information that patients find important is, in fact, relevant, though we may not initially recognize this.] Confusion and frustration result when patients view their information as both important and relevant, while doctor finds the information to be neither important nor relevant.

When medical students learn to interview patients, they often nod, smile, and exhibit body language that tacitly encourages patients to continue, even if patients are sharing anecdotes about a recent vacation. Afterwards, when I ask students for their opinions about their interviews, they often express disappointment.

“I didn’t get the information I needed. But I didn’t want to interrupt because I didn’t want to be rude. It seemed like that the patient really wanted to talk about her vacation.”

Two points to consider:

Firstly, though the dialogue between patient and doctor may seem to follow the rules of a usual conversation, the clinical interview is not a normal social interaction.

Do you routinely ask your friends or family if they are are experiencing side effects from medications? if they are having regular menstrual cycles? if they’re thinking about killing themselves? if they’re passing gas?

Such questions rarely come up in usual social interactions. Imagine how other people might react if you asked these questions during a dinner date, while waiting in line at the grocery store, or in an elevator.

Context matters.

Secondly, consider short-term versus long-term goals. Physicians don’t want to be rude to patients. Building and maintaining rapport is important in clinical care. However, patients (often reluctantly!) see physicians to receive guidance and treatment for their health. These are not friendships. If you require history to arrive at a diagnosis and treatment and you are unable to get that information, then you are not actually helping the patient. It may feel better in the short-term to let patients share irrelevant information, but, in the long-term, the health of patients will not change.

So, what are some ways to interrupt people while minimizing rudeness?

The vast majority of patients understand that time with their physicians is limited. Patients who talk a lot often know that they talk a lot. Orienting patients to the possibility of interruptions before starting can be extraordinarily helpful if the need arises.

All human beings want acknowledgment that you heard and understood what they said. I often counsel medical students to jump in when they can (when the patient takes a breath, when the patient is trailing off, etc.) and briefly summarize the last few things the patient said, and then append a question. Example:

“… she always says it’s my fault and I never do anything right and she only says that when things don’t go the way she wants them to and she never sees all the things I do right and when I point them out she thinks I’m being arrogant but I’m just trying to point out that I do some things right most of the time—”

“You get upset when your girlfriend doesn’t see how hard you try—how have your blood sugars been?”

Bonus points if you can tie the summary sentence to your question (e.g. “With all of that frustration you’ve felt with your girlfriend, have you noticed if it has affected your blood sugars?”).

This strategy requires your full attention. If your summary statement is completely inaccurate, your patient will feel vexed.

Other strategies, with increasing urgency (always done with respect):

  1. Say the person’s name (most people will stop talking).
  2. Lean forward and express urgency on your face.
  3. Make some other sound (e.g. firmly putting your hand on a table) in addition to saying the person’s name and leaning forward.

Never raise your voice or shout.

I advise students to try different methods of interruption with friends, family, and classmates, and ask them to gauge what seems to work, what doesn’t seem to work, and how people respond. These experiments serve both as practice for interrupting people in general, but also shapes behavior to interrupt with grace and tact.


Categories
Consult-Liaison Education Informal-curriculum Lessons Medicine Observations

Informal Curriculum: Lesson 3.

My third recommendation for the informal curriculum about interviewing patients: Respond in the moment to what patients say and do.[1. There are instances when it is prudent to withhold or alter responses. Further discussions about this require an introduction to learning theory. If you want to learn more, please see Pryor’s Don’t Shoot the Dog to learn about reinforcement and how to use that on animals… including humans.] Patients tell physicians information that is difficult to talk about or rarely discussed. If William Osler was correct in advising, “Listen to your patient, he is telling you the diagnosis,” then you must clearly communicate to the patient that you are listening, so he can continue to tell you the diagnosis. The way you respond to patients will affect the amount of information patients will choose to share with you.

You do not need to say a word to respond to patients. A nod can encourage patients to continue with details. A smile can reinforce decisions to change health behaviors. Furrowed brows can express concern. Putting down the pen or stopping the typing can highlight your wish to help the patient. Do you know the color of your patient’s eyes? Taking the second to do that will help you attend to the person in front of you.

Your responses can be utterances. All of those sounds we make that aren’t words can be helpful. The “mm hmm”, “hmm…”, and “huh” take less than a second to utter and tell your patient that you’re listening to them. Example:

I’ve had this pain in my right side for about two weeks. (mm hm) Sometimes it gets really bad and it’s hard to breathe. (hmm) I thought I strained a muscle at first, but it’s just getting worse. (huh)

Patients will let you know if you’re uttering too much: They will abruptly stop talking because they think you’re trying to say something; they will look perplexed; they will ask you if you’re okay. And, full circle: Respond to what patients say and do. Tone down the utterances.

Your responses can also be words. A patient dislocated her shoulder and she feels great pain. She’s wincing, but otherwise quiet. Possible responses:

  • “Shoulder dislocations are really painful.” (acknowledges the pain associated with shoulder dislocations)
  • “Thank you for your patience throughout all of this.” (acknowledges her pain and your appreciation that she is cooperating as best as she can)
  • “How is the pain now?” (responding to the wince)

All of these responses, verbal or not, tell your patient that you are paying attention. We are not in an age (yet) where computers can provide accurate empathy and validation. Algorithms and technology have their place in medicine as treatments; physicians, as people, can provide care. Patients are grateful for care. It is care that acknowledges and respects their humanity, in sickness or in health. This is why people still consult human beings with medical degrees after an exhaustive search on Google.