Variations of atrioventricular block

Yeo TJ, Teo SG, Soo WM, Poh KK
Correspondence: A/Prof Poh Kian Keong, kian_keong_poh@nuhs.edu.sg

ABSTRACT
Atrioventricular (AV) block comprises a spectrum of cardiac conduction delays with varying clinical presentations. It is commonly encountered in both hospital as well as ambulatory settings, and recognition of the type of AV conduction delay is essential for appropriate subsequent management. The electrocardiogram is a key tool for identification of patients with AV conduction delays. Contrasting management strategies should be employed for differing levels of conduction block.

Keywords: complete heart block, Mobitz Type I atrioventricular block, second-degree heart block, third-degree heart block
Singapore Med J 2011; 52(5): 330-335