Temporary, catheter-induced block in accessory pathways.


Journal Article

Catheter-induced conduction delay or block in the accessory atrioventricular pathway of four patients with the preexcitation syndrome was observed. Block in the accessory pathway occurred during routine catheter placement and lasted from 90 seconds--14 hours. All of the pathways were in locations readily accessible to catheter trauma, located in the right anterior septal/paraseptal area in three patients, and in the posterior septum near the orifice of the coronary sinus in the fourth. The location of the acessory pathway was confirmed at surgery by endocardial mapping in three of the four patients. The fourth patient did not undergo survey. These findings suggest the need for caution in performing and interpreting electrode catheter studies which are undertaken to document the presence of accessory pathways.

Full Text

Duke Authors

Cited Authors

  • Novick, TL; Pritchett, EL; Campbell, RW; Rogers, GC; Wallace, AG; Gallagher, JJ

Published Date

  • November 1, 1978

Published In

Volume / Issue

  • 58 / 5

Start / End Page

  • 932 - 940

PubMed ID

  • 699262

Pubmed Central ID

  • 699262

International Standard Serial Number (ISSN)

  • 0009-7322

Digital Object Identifier (DOI)

  • 10.1161/01.cir.58.5.932


  • eng

Conference Location

  • United States