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  • Title: Syncope: Electrocardiographic and Clinical Correlation.
    Author: Ungar A, Rafanelli M.
    Journal: Card Electrophysiol Clin; 2018 Jun; 10(2):371-386. PubMed ID: 29784489.
    Abstract:
    Syncope is a frequent condition, owing to a transient global cerebral hypoperfusion, that may depend on a reduction of vascular total peripheral resistance and/or cardiac output. Cardiac syncope doubled the risk of death from any cause and increased the risk of nonfatal and fatal cardiovascular events. Arrhythmias are the most common cardiac causes of syncope. Both bradyarrhythmias and tachyarrhythmias may predispose to syncope. The first line evaluation relies on clinical history, physical examination, active standing test, 12-lead echocardiogram. The diagnostic yield of electrophysiological study in detecting the cause of syncope depends highly on the pretest probability.
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