Intra-His bundle block in 2:1 atrioventricular block

Intra-hisian atrioventricular(AV) block is not a common phenomenon, but it is important for the development of advanced or complete AV block. We observed a 77-yearold female patient with the 2:1 AV block due to an intrahisian block. In this case we tried to detect the block site, but an alternating...

Full description

Saved in:
Bibliographic Details
Published inWorld journal of cardiology Vol. 7; no. 10; pp. 700 - 702
Main Authors Hong, Seung Pyo, Park, Yon Woong, Lee, Young Soo
Format Journal Article
LanguageEnglish
Published United States Baishideng Publishing Group Inc 26.10.2015
Subjects
Cardiac
Case Report
electrophysiologic
techniques;Bundle
Bundle of His
Cardiac electrophysiologic techniques
Atrioventricular block
Online AccessGet full text

Cover

More Information
Summary:Intra-hisian atrioventricular(AV) block is not a common phenomenon, but it is important for the development of advanced or complete AV block. We observed a 77-yearold female patient with the 2:1 AV block due to an intrahisian block. In this case we tried to detect the block site, but an alternating pattern of the AH conduction was noted on the His-electrogram in the electrophysiological study(EPS). The cause of the confusing finding might have been the instability of the catheter to record a His potential. We could detect a splitting of the Hiselectrogram with an intra-hisian block after minimal manipulation of the catheter. The authors’ observations suggest that catheter stability is important for a precise recording in the EPS and radiofrequency catheter ablation procedure.
Bibliography:Intra-hisian atrioventricular(AV) block is not a common phenomenon, but it is important for the development of advanced or complete AV block. We observed a 77-yearold female patient with the 2:1 AV block due to an intrahisian block. In this case we tried to detect the block site, but an alternating pattern of the AH conduction was noted on the His-electrogram in the electrophysiological study(EPS). The cause of the confusing finding might have been the instability of the catheter to record a His potential. We could detect a splitting of the Hiselectrogram with an intra-hisian block after minimal manipulation of the catheter. The authors’ observations suggest that catheter stability is important for a precise recording in the EPS and radiofrequency catheter ablation procedure.
Seung Pyo Hong;Yon Woong Park;Young Soo Lee;Division of Cardiology, Department of Internal Medicine, Daegu Catholic University Medical Center
Cardiac electrophysiologic techniques;Bundle of Hi
Telephone: +82-53-6503441 Fax: +82-53-6213166
Author contributions: Hong SP, Park YW and Lee YS designed and wrote the report; Lee YS performed the electrophysiological study and pacemaker implantation.
Correspondence to: Young Soo Lee, MD, Division of Cardiology, Department of Internal Medicine, Daegu Catholic University Medical Center, 33 Duryugongwon-ro 17-gil, Nam-gu, Daegu 705-718, South Korea. mdleeys@cu.ac.kr
ISSN:1949-8462
1949-8462
DOI:10.4330/wjc.v7.i10.700