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QUESTION: In patients presenting to the emergency department (ED) with syncope, what are the relative frequencies of different causes?
2 month cohort study.
9 community hospitals in Italy.
195 patients who were >12 years of age (mean age 63 y, 56% women) and presented to the ED with syncope (sudden transient loss of consciousness and of postural tone with spontaneous recovery). Patients with a known seizure disorder with a prolonged postictal recovery phase or those without a clear loss of consciousness were excluded. Follow up was complete.
A 2 step diagnostic algorithm was applied to all patients. The first step consisted of a history and physical examination, 12 lead electrocardiogram …