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Case Reports in Critical Care
Volume 2016, Article ID 9531210, 3 pages
Case Report

Iatrogenic Transient Complete Heart Block in a Preexisting LBBB

1Department of Medicine, Allegheny General Hospital, Pittsburgh, PA 15212, USA
2Department of Pulmonary-Critical Care, Allegheny General Hospital, Pittsburgh, PA 15212, USA
3Department of Medicine, Conemaugh Memorial Medical Center, Johnstown, PA 15905, USA
4Department of Clinical Cardiac Electrophysiology, Allegheny General Hospital, Pittsburgh, PA 15212, USA

Received 29 April 2016; Accepted 26 June 2016

Academic Editor: Petros Kopterides

Copyright © 2016 Adil S. Wani et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Catheter induced cardiac arrhythmia is a well-known complication encountered during pulmonary artery or cardiac catheterization. Injury to the cardiac conducting system often involves the right bundle branch which in a patient with preexisting left bundle branch block can lead to fatal arrhythmia including asystole. Such a complication during central venous cannulation is rare as it usually does not enter the heart. The guide wire or the cannula itself can cause such an injury during central venous cannulation. The length of the guide wire, its rigidity, and lack of set guidelines for its insertion make it theoretically more prone to cause such an injury. We report a case of LBBB that went into transient complete heart block following guide wire insertion during a central venous cannulation procedure.