%A Meir Friedman
%A Paul Schweitzer
%J Indian Pacing and Electrophysiology Journal
%T Transient unexpected improvement of AV conduction: What is the mechanism?

%X This ECG was recorded from a 93 year old patient with a previously documented third degree AV block and an underlying LBBB. The twelve lead ECG demonstrates sinus bradycardia at a rate of 52 beats per minute, a PR interval  of 230 milliseconds, and a left bundle branch block (Figure 1).  In figure 2, a rhythm strip of leads V1, II and V5 shows sinus rhythm with AV block. Note that only P waves in the T wave of the paced beat are conducted.  The non-conducted P waves are followed by ventricular paced beats at an escape interval of 1200 milliseconds.  
%N 3
%P 182-183
%E Balbir Singh
%E Yash Lokhandwala
%E Johnson Francis
%E Anup Gupta
%E Joydeep Ghosh
%V 6
%D 2006
%I Indian Pacing and Electrophysiology Group
%L cogprints5238

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