Cardiac resynchronization therapy for exercise-induced left ventricular dysfunction in the setting of left bundle branch block: A case report and review of the literature

Joellyn M. Abraham*, James D. Thomas, Bruce L. Wilkoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Exercise-induced dyspnea is one of the most common symptoms that cause a patient to see a physician and a broad differential diagnosis is required. In this case report, we describe a patient with this complaint who had a left bundle branch block and preserved left ventricular function at rest. On stress echocardiography, she had significant exercise-induced left ventricular dysfunction and associated mitral regurgitation but a coronary angiogram demonstrated normal coronary arteries. Both of the echocardiographic findings, as well as her symptoms, improved with the placement of a bi-ventricular pacemaker. A brief review of the literature on cardiac resynchronization therapy for indications beyond the current guidelines is also provided.

Original languageEnglish (US)
Pages (from-to)519-521
Number of pages3
Journaljournal of arrhythmia
Volume30
Issue number6
DOIs
StatePublished - Dec 1 2014

Keywords

  • Cardiac resynchronization therapy
  • Left bundle branch block

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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