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Research Article

. 2021; 12(4): 84-90


Atrioventricular Block In Patients Undergoing Elective Isolated Aortic Valve Surgery

Dr Hassan Javed, Dr Ammad hussain, Dr Abdul wasay, Dr Rabia Iqtdar, Dr Maaida Muzaffar,Dr Hasan mushtaq, Professor Irum Alia.

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.
Background
Cardiac conduction system disorders are potential complications of the procedures for heart valve surgery.
Atrioventricular conduction disturbances are commonly seen following cardiac surgery, in particular in patients after
aortic valve replacement and tricuspid valve repair.

Key words: 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.






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