Cogprints

Transient unexpected improvement of AV conduction: What is the mechanism?

Friedman, Meir and Schweitzer, Paul (2006) Transient unexpected improvement of AV conduction: What is the mechanism? [Journal (Paginated)]

Full text available as:

[img] HTML
13Kb
[img]
Preview
PDF
238Kb

Abstract

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.

Item Type:Journal (Paginated)
Subjects:JOURNALS > Indian Pacing and Electrophysiology Journal
ID Code:5238
Deposited By: Indian Pacing and Electrophysiology, Journal
Deposited On:28 Oct 2006
Last Modified:11 Mar 2011 08:56

References in Article

Select the SEEK icon to attempt to find the referenced article. If it does not appear to be in cogprints you will be forwarded to the paracite service. Poorly formated references will probably not work.

1. Pick A, Langerdorf R, Katz LN. The supernormal phase of atrioventricular conduction. I Fundamental mechanisms. Circulation 1962; 26: 388-404.

2. Schamroth L. The disorder of cardiac rhythm. Blackwell Scientific publications, Oxford and Edinburgh. 1971; 271-279.

3. Rashid A, Massumi RA, Amsterdan EA, Mason DT. Phenomenon of supernormality in the human heart. Circulation 1972; 46:264-275.

4. Moe GK, Childers RW, Merideth J. An appraisal of supernormal AV conduction. Circulation 1968; 38:5-28.

5. Gallagher JJ, Damato AN, Varghese PJ, Caracta AR, Josephson ME, Lau SH. Alternative mechanisms of apparent supernormal atrioventricular conduction. Am J Cardiol. 1973;31: 362-371.

Metadata

Repository Staff Only: item control page