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.
J Electrocardiol
; 48(4): 637-42, 2015.
Article
en En
| MEDLINE
| ID: mdl-25959263
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.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Estenosis de la Válvula Aórtica
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Bloqueo de Rama
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Electrocardiografía
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Reemplazo de la Válvula Aórtica Transcatéter
Tipo de estudio:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Aged80
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Female
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Humans
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Male
Idioma:
En
Revista:
J Electrocardiol
Año:
2015
Tipo del documento:
Article