Journal
AMERICAN JOURNAL OF CARDIOLOGY
Volume 113, Issue 4, Pages 701-705Publisher
EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC
DOI: 10.1016/j.amjcard.2013.10.047
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Although transcatheter aortic valve implantation (TAVI) for severe aortic stenosis is becoming an established technique, the impact of gender-related differences remains unclear: Two hundred twenty-four consecutive patients undergoing TAVI were prospectively followed up in a tertiary medical center. The primary end point of the present study was all-cause mortality at 2 years of follow-up. Interaction-term analysis was used to identify gender-specific predictors of mortality after TAVI. Fifty-seven percent of the study patients were women. Age was similar (82 7 years). Compared with men, women had a lower frequency of coronary artery disease (CAD) and a higher baseline left ventricular ejection fraction (LVEF). The cumulative probability of all-cause mortality was significantly lower among women (8.6%) compared with men (26.8%; log-rank p value <0.001). A lower baseline LVEF (<45%) was associated with a significant, more than fourfold (p = 0.0019 and 0.048, respectively), increase in mortality risk among both men and women (p value for gender-by-LVEF interaction = 0.87). In contrast, the risk associated with the presence of previous CAD was shown to be gender related. Thus, in women, CAD was associated with a pronounced >14-fold increase in mortality risk, whereas in men, CAD was not associated with a significant mortality risk (p value for gender-by-LVEF interaction = 0.01). In conclusion, our findings suggest that risk assessment before TAVI should consider gender-specific differences in survival and risk factors. (C) 2014 Elsevier Inc. All rights reserved.
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