Toarta C, et al. - Researchers sought to measure the outcomes among syncope patients assigned various diagnostic categories during Emergency Department (ED) evaluation. They noted a strong correlation of short-term serious outcomes with the etiology assigned in the ED visit. The proportion of patients with ED investigations and short-term serious outcomes increased in each diagnostic category in the following order: presumed vasovagal, orthostatic hypotension, other/unknown cause, and cardiac. Among physicians, confidence was highest for a presumed vasovagal syncope diagnosis and lowest when the cause was other/unknown.