Abstract
This paper has five objectives: (a) to review the scientific background of, and major findings reported in, Medical Problem Solving, now widely recognized as a classic in the field; (b) to compare these results with some of the findings in a recent best-selling collection of case studies; (c) to summarize criticisms of the hypothesis-testing model and to show how these led to greater emphasis on the role of clinical experience and prior knowledge in diagnostic reasoning; (d) to review some common errors in diagnostic reasoning; (e) to examine strategies to reduce the rate of diagnostic errors, including evidence-based medicine and systematic reviews to augment personal knowledge, guidelines and clinical algorithms, computer-based diagnostic decision support systems and second opinions to facilitate deliberation, and better feedback.
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Notes
The fictional detective Sherlock Holmes, perhaps the model of this genre, was inspired by one of Sir Arthur Conan Doyle’s teachers in medical school, Dr. Joseph Bell (http://www.siracd.com/work_bell.shtml).
To give credit, a case can be made that the field of research on clinical diagnosis really began earlier with studies of variation in clinical judgment that are nowadays regrettably overlooked (Bakwin 1945; Yerushalmy 1953; Lusted 1968). The reasons for neglect are unclear and in any event are beyond the scope of this paper, but it is a plain fact that they are cited neither by Ericsson nor Norman, nor by the vast majority of psychologists, physicians and educators who have done research on clinical reasoning in the past 30 years.
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Acknowledgments
An earlier version of this paper was presented as a keynote address at a conference, “Diagnostic Error in Medicine,” held in Phoenix, AZ, May 31-June 1, 2008. I thank the organizing committee—Eta Berner, Pat Croskerry, Mark Graber, and Gordon Schiff—for the invitation and for encouraging personal reflections on the subject. My co-authors and students have taught me a great deal. I owe much to my colleagues in the field, some cited in this paper and some not. Errors of facts and interpretation are my sole responsibility.
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Elstein, A.S. Thinking about diagnostic thinking: a 30-year perspective. Adv in Health Sci Educ 14 (Suppl 1), 7–18 (2009). https://doi.org/10.1007/s10459-009-9184-0
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DOI: https://doi.org/10.1007/s10459-009-9184-0