Journal List > Korean Circ J > v.13(2) > 1072128

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Rho, Chae, Kim, Kim, Hong, Kim, and Kim: A Case of Complete A-V Block due to Intra-His Block
Case Report
Korean Circulation Journal

Korean Circulation Journal 1983; 13(2): 443-447.

Published online: 31 December 1983

DOI: https://doi.org/10.4070/kcj.1983.13.2.443

A Case of Complete A-V Block due to Intra-His Block

Tai Ho Rho, M.D., Jang Seong Chae, M.D., Chong Sang Kim, M.D., Jae Hyung Kim, M.D., Soon Jo Hong, M.D., Sam Soo Kim, M.D., Hak Joong Kim, M.D.

Copyright © 1983 The Korean Society of Circulation

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

His bundle recordings enable us to diagnose conduction disturbances not discernable in the standard leads, and to localize conduction block in the subdivisions of the conduction system. Cases of intra-His bundle block were first reported in 1970 by Narula and Samet. Thereafter many additional reports and studies were made.
We report a case of 3° A-V block due to conduction block at the His bundle level. A 71-year-old woman was admitted because of dizziness. Surface ECG showed 3° A-V block. His bundle electrogram revealed typical split His potential. A-H intervals were 80 msec and H'-V intervals 50~70 msec. And there found no relation between AH and H'A. Atrial pacing resulted only prolongation of A-H to 90 msec but dissociation between h and H' was consistent. We implanted a permanent endocardial pacemaker in her chest.

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