Intermittent Normal Ventricular Conduction in Left Bundle Branch Block After TAVR

Edoardo Cecchini, MD; Gianluca Massaro, MD; Vincenzo Carbone, MD; Giuseppe Sangiorgi, MD

JACC: Case Reports (Jun 2023)

Intermittent Normal Ventricular Conduction in Left Bundle Branch Block After TAVR

Edoardo Cecchini, MD,
Gianluca Massaro, MD,
Vincenzo Carbone, MD,
Giuseppe Sangiorgi, MD

Affiliations

Edoardo Cecchini, MD: Division of Cardiology, Tor Vergata University, Rome, Italy; Address for correspondence: Dr Edoardo Cecchini, Policlinico Tor Vergata, Viale Oxford, 81, 00133 Rome, Italy.
Gianluca Massaro, MD: Division of Cardiology, Tor Vergata University, Rome, Italy
Vincenzo Carbone, MD: Outpatient Cardiology, Naples, Italy
Giuseppe Sangiorgi, MD: Division of Cardiology, Tor Vergata University, Rome, Italy

Journal volume & issue: Vol. 15
p. 101865

Abstract

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In a patient who previously developed left bundle branch block after transcatheter aortic valve replacement, intermittent narrow QRS complexes were recorded on ambulatory electrocardiography monitoring. The peculiar distribution of wide and narrow QRS complexes suggested the presence of a window of supernormality in the refractory period of a branch block that on other occasions exhibited the Wenckebach phenomenon. (Level of Difficulty: Intermediate.)

Published in JACC: Case Reports

ISSN: 2666-0849 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Internal medicine: Specialties of internal medicine: Diseases of the circulatory (Cardiovascular) system
Website: https://www.journals.elsevier.com/jacc-case-reports

About the journal

Abstract

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