학술논문
Sudden unexpected improvement in the atrioventricular conduction. What is the mechanism?
Document Type
article
Source
Indian Pacing and Electrophysiology Journal, Vol 21, Iss 4, Pp 248-250 (2021)
Subject
Language
English
ISSN
0972-6292
Abstract
The 12-lead electrocardiogram (ECG) of a 79-year-old male patient with recurrent pre-syncope showed irregular sinus rhythm with constant PR interval and left bundle branch block (LBBB) with intermittently blocked P waves. The beat following the blocked P wave had a narrower QRS with a shorter PR interval. The phenomenon of bilateral bundle branch block explains the sudden improvement in the atrioventricular conduction.