Influence of QRS infarct score and QRS duration prior to transcatheter aortic valve replacement on follow-up left ventricular end systolic volume in patients with new persistent left bundle branch block.

Published

Journal Article

BACKGROUND: New-onset left bundle branch block (LBBB) is a known complication during Transcatheter Aortic Valve Replacement (TAVR). This study evaluated the influence of pre-TAVR cardiac conditions on left ventricular functions in patients with new persistent LBBB post-TAVR. METHODS: Only 11 patients qualified for this study because of the strict inclusion criteria. Pre-TAVR electrocardiograms were evaluated for Selvester QRS infarct score and QRS duration, and left ventricular end-systolic volume (LVESV) was used as outcome variable. RESULTS: There was a trend towards a positive correlation between QRS score and LVESV of r=0.59 (p=0.058), while there was no relationship between QRS duration and LVESV (r=-0.18 [p=0.59]). CONCLUSION: This study showed that patients with new LBBB and higher pre-TAVR QRS infarct score may have worse post-TAVR left ventricular function, however, pre-TAVR QRS duration has no such predictive value. Because of the small sample size these results should be interpreted with caution and assessed in a larger study population.

Full Text

Duke Authors

Cited Authors

  • Hannink, LGJ; Wagner, GS; Kisslo, J; Alenezi, FAM; Shaw, LK; Hofmann, P; Zusterzeel, R; Phelan, M; Velazquez, EJ; Gorgels, APM

Published Date

  • July 2015

Published In

Volume / Issue

  • 48 / 4

Start / End Page

  • 637 - 642

PubMed ID

  • 25959263

Pubmed Central ID

  • 25959263

Electronic International Standard Serial Number (EISSN)

  • 1532-8430

Digital Object Identifier (DOI)

  • 10.1016/j.jelectrocard.2015.04.010

Language

  • eng

Conference Location

  • United States