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1 Department of Medicine, University of Barcelona, CAP Cornellà, Catalonian Institute of Health (ICS), Cornellà de Llobregat, Spain
2 Departments of Family Medicine and Psychiatry, and the Office for Medical Education, University of Rochester School of Medicine and Dentistry, Rochester, NY
CORRESPONDING AUTHOR: F. Borrell-Carrió, MD, Department of Medicine, University of Barcelona, CAP Cornellà, Catalonian Institute of Health (ICS), C/Bellaterra 39, 08940, Cornellà de Llobregat, Spain, 12902fbc{at}comb.es
| ABSTRACT |
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Key Words: Medical errors decision making/education professional practice risk management medical mistakes quality of health care self-awareness clinical reasoning
| INTRODUCTION |
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| METHODS |
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Whereas it is clear that some errors may have been made in the hand-offs of care, lack of individual vigilance and inability to think about the concrete situation in a new way contributed to poor care. To a certain degree, each physicians competence in this situation depended on the ability to avoid routine and to tune clinical abilities to deal with the situation. We use the terms tune or calibrate in the same way one might use them when referring to tuning a musical instrument or calibrating a glucometer.11 Self-awareness is the process whereby the physician self-calibrates to produce the desired effect: an effective communication process, or an accurate physical examination.11,12. The cognitive and emotional processes that physicians use to increase self-awareness in the moment during everyday medical practice, however, have not been described in depth until recently.
We present this article as a preliminary step to answer the question of whether training in self-awareness can prevent clinical errors.13 To that end, we explore a rational-emotive model of clinical error prevention, building on our own clinical, teaching, and research experience,12,1416 and develop some educational strategies that can help to prevent clinical errors by increasing access to the thoughts and feelings that guide clinical actions. We hope to build on the literature that describes the cognitive structure of medical knowledge1719 to bring attention to the influence of emotions and self-calibration in daily practice. Briefly, the model involves strategies for recognizing situations that increase the risk of errors (which often involve denial, fatigue, or distraction), attending to previously unexamined decision rules that are being applied to the situation, seeking opportunities for engaging in reframing to revise an understanding of the clinical situation, and promoting a habit of self-questioning during clinical work.
The Rational-Emotive Model
Physicians tend to reason tacitly to the extent of consciously perceiving only the tip of the iceberg of their own thinking processes. Beneath the surface there are quasi-automatic mental operations that are often useful mental shortcuts; however, sometimes these same shortcuts can play tricks on reasoning skills. In the case above, decreased urination is often associated with dehydration, but clearly it is not the only explanation. Failure to examine the reasoning process led to perpetuation of an error.
Figure 1
represents the rational-emotive model of the clinical act. This model takes into account the division of the encounter into 2 phases: the exploratory phase and the resolution phase.20 In the exploratory phase, the physician experiences the need to know how to resolve the patients problem as quickly as possible to reduce the psychological tension the physician experiences. Observe how the model works based on the following example:
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The challenge situation is perceived as the confluence of (1) the demand encountered by the physician (in this case, a child with fever, headache, and confusion); and (2) the environment in which this demand is made (a fatigued physician at 4:00 AM in the emergency department). The physician then creates a frame for the situation, ie, an understanding of what he or she must do during the visit. In our case, this frame could well be as follows: "This patient has headache and fever with confusion, so I have to make sure the patient does not have a serious infection." This frame is automatically associated to an early hypothesis: viral infection, meningitis, pneumonia, etc. The exploratory phase includes maneuvers of observation, listening, questioning, and physical examination to support or refute the early hypothesis. The resolution phase includes arriving at an understanding of the diagnosis and therapeutic plan and then closure.
When the data obtained by the physician do not confirm the early hypotheses, or new data require adding to or modifying these early hypotheses, the physician engages in type 1 reframing to arrive at a more accurate understanding of the situation. In this example, type 1 reframing would have occurred had the physician found a high fever with cognitive impairment not explained by a viral infection. Type 2 refram-ing occurs when it is necessary not only to adjust the hypotheses but to rethink the whole clinical situation. This situation can occur at the initiative of the patient ("I think youre wrong, Doctor, Im not depressed") or as the result of new data (eg, the unexpected finding of lymphadenopathy and splenomegaly during a routine physical examination). Type 2 reframing requires more effort than type 1 reframing, because it disrupts the time allotment and fatigue management that the physician had planned.
The case above gives us also the opportunity to analyze the role of somatic markers and emotional satisfaction as regulators of decision making. Our argument is based on the notion that physicians do not act as rationally as they believe they do, and that emotional satisfaction often comes into play.21 Before making a decision, for example, at some level physicians weigh the satisfaction that each option is likely to produce by imagining the result of an action before doing it. This exercise leads physicians to weigh different options based on the projected image, which might be at odds with a rational analysis of the outcome.22 Damasios somatic marker hypothesis23,24 goes one step further: Before making a decision, physicians evoke images and emotions for each of the options in playthey project themselves into the imagined situation and feel as if they were there. In subsequent similar situations, that as-if feeling, which Damasio calls a somatic marker, comes forward automatically, without the effort of imagining, facilitating decision making.
Cognitive Activation and Errors
In Figure 2
we explain the concept of critical tension. When physicians are facing the challenge to make a diagnosis to solve a patients problem, they experience a degree of emotional tension. This tension is more extreme when the situation is atypical or ambiguous, or when the patient is perceived as demanding. In addition, all physicians have good and bad days. An important hypothesis of our model is that the days are good partially by virtue of the physicians ability to tolerate the emotional tension of not knowing. A bad day precipitates the premature closing of the encounter or other strategies to decrease the emotional discomfort. Table 1
lists factors that interfere with professional performance partially as a result of lower tolerance of critical tension.
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This case illustrates the concept of the level of cognitive activation. This activation level can depend upon attitude. Fatigue, perceptions of urgency or danger to the patient, or even physicians perceptions that they might lose professional prestige, among other factors, can raise levels of cognitive activation.25 In this example, in the solitude of the first visit, the physician could permit himself to be minimally activated and allow himself to be beaten by fatigue. In the second visit, during which the physician had to demonstrate his skill in front of his colleague and was forewarned by the inner dialog ("Im not sure about this patient"), the physicians activation level increased. If the physician were able to learn from this situation, he could conclude, "When Im tired, I might imagine that I am presenting a case to a respected colleague to avoid a premature closure."
Unlike a computer, a human being self-regulates the amount and type of attention paid to the environment and manages the energy this effort requires.26 The preceding examples show a lack of regulation on the part of both physicians. A human being can function in a spectrum that ranges from very low arousal, almost bordering somnolence, to a state of hyperexcitation, with associated feelings ranging from pleasure to frank discomfort. Apters reversal theory27 describes how a change in the intensity of a stimulus can change the quality of an emotion, going from a state of enjoyment to a state of displeasure, or from cooperative emotions to emotions of competition. For example, a patient asking the same question 2 or more times can change a physicians reaction from interest to irritation.
Apters theory also predicts that physicians have an ideal cognitive activation zone (Figure 3
) to open a library of decision rules in which are stored the memories of similar clinical experiences that mark their presentation at a certain moment. He conceptualizes 2 axes: arousal and pleasure. Along the axis of arousal, for instance, the physician can be affected by physical fatigue, boredom, or anxiety. Along the axis of pleasure, for example, if the physician is flooded by emotions of irritation or hostility, the physician will be tempted to shorten the encounter. To close the clinical encounter, however, the physician always needs a cognitive alibi, such as, "this patient exaggerates his or her symptoms," or "he or she has the same thing I diagnosed last week."
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In this case the physician formulated a simple preliminary hypothesis, "She is having a recurrence of her renal colic," and applied a basic decision rule looking for colicky pain, hematuria, and costover-tebral tenderness. Finding only the first item, the physician ignored the disconfirming data because, "If its not renal colic, I cant imagine what it could be, so...it must be!" Perhaps the physician believed that admitting uncertainty would be humiliating in front of colleagues, or perhaps the effort to consider other possibilities would make the physician more irritable or unsure of the diagnosis.
Figure 4
shows a physician who is able to apply high-level decision rules most of the time. Examples would be, "to allow a diagnosis of nephrolithiasis, the pain should be colicky and it should almost always be accompanied by hematuria," or "when there is also rebound tenderness, I should carry out a rectal or vaginal examination." These complex, elaborated decision rules might lead to a low rate of error, perhaps 1 in 250. Sometimes, though, for reasons of fatigue, cognitive overload, or fear of loss of self-esteem, the physician might substitute lower level decision rules and not recognize that they are inadequate to the situation.
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First, there are tools to help physicians learn to detect states of low cognitive activation or emotional saturation, which lead to not giving importance to (or even rejecting) the demands or complaints of patients. For example, we invite physicians to detect physical and psychological signs of fatigue (such as deterioration in handwriting, tremor, headache, forgetfulness, irritability, and inattentiveness), enhancing a better control over the environment and a systems-wide strategy of intelligent time assignment.
Second, physician training can focus on learning to reframe with minimal effort, although doing so might entail a delay in the resolution of the clinical task. Teaching methods should subject the student to a series of simulated situations in which he or she must detect whether the need to reframe an early hypothesis exists. This proposal goes beyond the suggestions of Barrows and Kassirers iterative model,28 in that we suggest provoking situations in which the physician must reopen the encounter that had initially been closed and, in the process, analyze the emotional resistance to reframing.
Third, physicians should develop methods to recognize cognitive abilities and substitute more appropriate explanations for ones behavior, incorporating new clinical decision rules based on their own and on their colleagues errors (Table 3
). These decision rules must be formulated simply, clearly, and in relation to concrete clinical situations. To this end, the student should learn (1) to recognize situations in which an error would have been committed, (2) examine why an error would have been committed, and (3) formulate high-level decision rules to correct this error. This process requires curiosity29 and development of tolerance to the ambiguity of "not-knowing" as a task of professional development.
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Second, the physician should foster the habit of self-questioning. We believe there are 2 ways to learn from errors. The situation-specific strategy consists in learning to regard any risk situation as a red flag. In the example of colicky abdominal pain, future patients with typical pain but without hematuria will receive a more tentative diagnosis of renal colic. A physician can also learn in a more general way, however, by detecting when low-level decision rules are appearing, or when he or she is closing the encounter before the basic information is acquired. Physicians who are able to ask themselves, "Did I get enough verbal or physical data?" and "Am I persisting in my first decision because of tiredness or self-esteem?" are acquiring a general skill, which we call reframing training that can be applied to both emotions and cognitions.
Habitual use of 2 or 3 questions from Table 4
can become routine quality-control points. The questions should reflect the individual characteristics and needs of each physician. Often, the physician is aware that some type of habit of self-questioning is already in use, in which case, his or her performance must simply be optimized.
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| CONCLUSION |
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| ACKNOWLEDGMENTS |
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| FOOTNOTES |
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Funding support: This work has had the support of the Fundació Jordi Goli Gurina.
Received for publication March 6, 2003. Revision received July 15, 2003. Accepted for publication August 11, 2003.
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