Diagnostic Error Clinical Trial
Official title:
Effects of Initial Cues and the Quality of Medical History Taking on Diagnostic Accuracy
This prospective randomized simulator-based single-blind trial aimed to investigate the effects of initial cues and history taking skills on diagnostic accuracy
Diagnostic errors are a relevant health-care problem. As medical history taking is usually the first step in a patient's assessment its quality is most likely a first and important barrier against diagnostic errors. There are, however, only limited data on the association of the quality of medical history taking and diagnostic accuracy.This prospective randomized simulator-based single-blind trial aimed to investigate the effects of initial cues and history taking skills on diagnostic accuracy. 198 medical students (135 females) were given the task to assess a patient presenting with simulated acute pulmonary embolism. Participants were randomized to six versions of the scenario differing only in the initial cues, i.e. in the reply of the patient to the initial question about the reason for his visit. In three of six versions, initial cues were restricted to thoracic symptoms (chest pain, dyspnoea, or combination of both). In the remaining three versions, initial cues consisted of thoracic and extra-thoracic (leg pain, immobilization) symptoms. The primary outcome was diagnostic accuracy. The mannequin was equipped with a speaker in its head that broadcasts the voice of a remote operator (experienced physician) allowing verbal interaction of the participants with the "patient". The "patient" did not speak unless asked and responded to all participants' questions during history taking according to a pre-defined checklist. ;
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