Atrioventricular Block In Patients Undergoing Elective Isolated Aortic Valve Surgery

Abstract

A descriptive and intuitive study was conducted to determine the frequency of atrioventricular block and degree of
block in patients undergoing elective isolated aortic valve surgery. There were 80.6% male and 19.4% female
patients. Atrial fibrillation was 23.3%, ejection fraction was 42.7%, prolonged CPB time was 12.6% and prolonged
aortic clamp time was 17.5%. Atrioventricular block was 18.4% out of which 21.1% was first degree, 42.1% were
second and 36.8% were third degree. There was significant association of atrioventricular block with gender, age,
diabetes mellitus, and prolonged CPB time.