Valvular Heart Disease
Influence of Gender on Clinical Outcomes Following Transcatheter Aortic Valve Implantation from the UK Transcatheter Aortic Valve Implantation Registry and the National Institute for Cardiovascular Outcomes Research

https://doi.org/10.1016/j.amjcard.2013.10.024Get rights and content

Gender differences exist in outcomes after percutaneous coronary intervention and coronary artery bypass graft surgery but have yet to be fully explored after transcatheter aortic valve implantation. We aimed to investigate gender differences after transcatheter aortic valve implantation in the UK National Institute for Cardiovascular Outcomes Research registry. A retrospective analysis was performed of Medtronic CoreValve and Edwards SAPIEN implantation in 1,627 patients (756 women) from January 2007 to December 2010. Men had more risk factors: poor left ventricular systolic function (11.9% vs 5.5%, p <0.001), 3-vessel disease (19.4% vs 9.2%, p <0.001), previous myocardial infarction (29.5% vs 13.0%, p <0.001), peripheral vascular disease (32.4% vs 23.3%, p <0.001), and higher logistic EuroSCORE (21.8 ± 14.2% vs 21.0 ± 13.4%, p = 0.046). Thirty-day mortality was 6.3% (confidence interval 4.3% to 7.9%) in women and 7.4% (5.6% to 9.2%) in men and at 1 year, 21.9% (18.7% to 25.1%) and 22.4% (19.4% to 25.4%), respectively. There was no mortality difference: p = 0.331 by log-rank test; hazard ratio for women 0.91 (0.75 to 1.10). Procedural success (96.6% in women vs 96.4% in men, p = 0.889) and 30-day cerebrovascular event rates (3.8% vs 3.7%, p = 0.962) did not differ. Women had more major vascular complications (7.5% vs 4.2%, p = 0.004) and less moderate or severe postprocedural aortic regurgitation (7.5% vs 12.5%, p = 0.001). In conclusion, despite a higher risk profile in men, there was no gender-related mortality difference; however, women had more major vascular complications and less postprocedural moderate or severe aortic regurgitation.

Section snippets

Methods

This is a retrospective analysis of 1,627 patients enrolled in a UK multicenter registry from January 2007 to December 2010. TAVI was conducted through “transfemoral” (TF), transapical (TA), subclavian/axillary (SC), and transaortic access routes with implantation of the Medtronic CoreValve (Medtronic, Santa Rosa, California) and Edwards SAPIEN and SAPIEN XT (Edwards Lifesciences, Irvine, California) devices.

All patients who underwent TAVI in the UK were enrolled in a UK TAVI multicenter

Results

TAVI was performed in 1,627 patients with the CoreValve Revalving System implanted in 814 (50.0%) patients and the Edwards SAPIEN THV and XT System implanted in 813 (50.0%) patients.

The baseline clinical demographics of the patients are presented in Table 1. Of the 1,627 patients, 871 were men and 756 were women. Men had a higher rate of risk factors than women, with a higher prevalence of diabetes, previous myocardial infarction, previous percutaneous coronary intervention, previous coronary

Discussion

This study is an analysis of a large national database assessing the effect of gender on outcomes of TAVI. There was no difference in 30-day or l-year mortality rates between men and women. Despite having a lower vascular risk profile than men, women had a higher incidence of vascular complications. This does not seem to be explained by their smaller body. AR was a more common complication in men and may have been because some men had large aortic annular diameters.

Vascular complications are

Disclosures

The authors have no conflicts of interest to disclose.

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