Assessment of the effect of cardiac resynchronization therapy on intraventricular mechanical synchronicity by regional volumetric changes

Am J Cardiol. 2005 Jan 1;95(1):126-9. doi: 10.1016/j.amjcard.2004.08.078.

Abstract

A new echocardiographic technology, the timing of regional volumetric changes by 3-dimensional echocardiography, was applied to assess intraventricular mechanical synchronicity in 13 patients who had received cardiac resynchronization therapy (CRT). When biventricular pacing was withheld, left ventricular (LV) asynchrony occurred as reflected by these echocardiographic parameters, whereas LV volume increased and the ejection fraction decreased. Further studies are needed to explore whether this novel method can be used to select suitable candidates for CRT and to predict a favorable response.

Publication types

  • Clinical Trial

MeSH terms

  • Cardiac Pacing, Artificial*
  • Echocardiography, Three-Dimensional*
  • Female
  • Heart Failure / diagnostic imaging*
  • Heart Failure / physiopathology
  • Heart Failure / therapy*
  • Heart Ventricles / diagnostic imaging*
  • Heart Ventricles / physiopathology
  • Humans
  • Male
  • Middle Aged