Emergency Department Syncope Workup: After H and P, ECG is the Only Test Required for Every Patient.
Dr. Smith's ECG Blog
APRIL 8, 2015
Negative predictors of adverse outcome: Pacemaker Pre-syncope or "near-syncope," but there is still some small risk (5, 18) These last two are identified in studies, but I consider them dangerous signs and symptoms in their own right, as above: 10. QRS Aortic Dissection, Valvular (especially Aortic Stenosis), Tamponade.
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