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J Eval Clin Pract. 2009 Oct;15(5):804-6. doi: 10.1111/j.1365-2753.2008.01098.x.

Misleading one detail: a preventable mode of diagnostic error?

Author information

1
Department of Neurology, Hadassah Hebrew University Hospital, Jerusalem, Israel. shahar.arzy@hcuge.ch

Abstract

RATIONALE, AIMS AND OBJECTIVES:

Despite advances in our understanding of cognitive biases in clinical practice, little is known about correction or prevention of diagnostic errors. The presence of a single misleading detail may lead clinicians down a cognitive and actual path toward an incorrect diagnosis.

METHODS:

In a large teaching hospital, we surveyed 51 attending doctors in internal medicine, presenting each with 10 clinical vignettes and soliciting their diagnosis of the condition leading to the presentation. Each of the 10 clinical cases included a single misleading detail.

RESULTS:

This survey elicited a wrong diagnosis in 90% of cases, which was reduced to 30% when omitting the misleading detail from the vignette. Diagnostic accuracy did not improve by warning doctors about potentially misleading information. Asking doctors to identify a leading diagnostic detail and then to formulate an alternative diagnosis after omission of the detail, significantly reduced diagnostic error rate by nearly 50%.

CONCLUSION:

Systematic re-examination of leading diagnostic clues may help to reduce errors in diagnosis.

[Indexed for MEDLINE]

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