Surgery>>>>>Acquired Heart Disease
Question 5#

The most common arrhythmia worldwide is:

a. Atrial flutter
b. Paroxysmal supraventricular tachycardia (PSVT)
c. Wolff-Parkinson-White (WPW) syndrome
d. Atrial fibrillation (AF)

Correct Answer is D


Atrial fibrillation (AF) remains the most common arrhythmia in the world with an overall incidence of 0.4 to 1% that increases to 8% in those older than 80 years. The most serious complication of AF is thromboembolism with resultant stroke, but serious morbidity and mortality may also result from hemodynamic compromise due to loss of atrial contraction, exacerbations of CHF from atrioventricular asynchrony and tachycardia-induced cardiomyopathy.