Abstract
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.
Original language | English |
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Pages (from-to) | 637-642 |
Journal | Journal of Electrocardiology |
Volume | 48 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2015 |
Keywords
- Transcatheter aortic valve replacement
- Left bundle branch block
- Selvester QRS-score
- QRS duration
- TAVR
- LBBB