Benefit of cardiac resynchronization therapy to a patient with a narrow QRS complex and ventricular dyssynchrony identified by tissue synchronization imaging

Kaoru Dohi, Mattew Suffoletto, Srinivas Murali, Raveen Bazaz, John Gorcsan

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

This report described an 81-year-old woman with severe symptomatic heart failure, reduced ejection fraction, mitral regurgitation, and an electrocardiographic QRS width of 118 ms who had ventricular dyssynchrony identified by echocardiographic tissue synchronization imaging. Because of her severe heart failure symptoms on maximal medical therapy, referral to implant a defibrillator, and mechanical dyssynchrony, she underwent cardiac resynchronization-defibrillator therapy with lateral left ventricular lead placement. This resulted in an immediate 30% increase in stroke volume and 35% decrease in mitral regurgitation. Echocardiographic tissue synchronization imaging may play a role in identifying mechanical dyssynchrony in patients with narrow QRS duration who may potentially benefit from cardiac resynchronization therapy.

Original languageEnglish
Pages (from-to)455-460
Number of pages6
JournalEuropean Journal of Echocardiography
Volume6
Issue number6
DOIs
StatePublished - Dec 2005

Keywords

  • Cardiac resynchronization therapy
  • Doppler ultrasound
  • Echocardiography
  • Heart failure
  • Mechanical dyssynchrony
  • Mitral regurgitation
  • Narrow QRS
  • Pacing therapy
  • Tissue synchronization imaging

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