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- W2802893531 abstract "Background Aortic valve calcification patterns were associated with short- and long-term outcomes in previous small observational datasets of patients undergoing transcatheter aortic valve implantation (TAVI). The specific impact of multi detector-row computed tomography (MDCT) findings on outcomes in women has not been reported. We sought to describe the associations between MDCT characteristics and clinical outcomes in a registry of 547 women undergoing TAVI. Methods WIN-TAVI is the first all-female registry to study the safety and effectiveness of TAVI in women (n = 1019). Thirteen sites participated in the MDCT sub-study and contributed pre-TAVI MDCT studies in 547 consecutive subjects. All MDCT data were analyzed in an independent core lab blinded to clinical outcomes. Key measurements included number of valve leaflets, aortic annulus area and perimeter, left and right coronary artery height, aortic cusp calcium volume, commissural calcification and left ventricular outflow tract (LVOT) calcification. Calcium volume of the aortic valvular complex was quantified using a threshold relative to patient-specific contrast attenuation in the arterial blood pool. We examined univariate and multivariate associations between ECG-gated contrast MDCT characteristics and 1-year mortality or stroke, new pacemaker implantation and new onset atrial fibrillation (AF). Results The CT sub-study sample had a mean age of 82.8 ± 6.3 years, mean logistic EuroSCORE of 17.8 ± 11.3%, and mean STS score of 8.2 ± 7.4%. Transfemoral access was used in 89.6% of patients. After multivariate adjustment, moderate or severe LVOT calcification was an independent predictor of 1-year mortality or stroke (HR = 1.91; 95% CI: 1.11–3.30; p = 0.02). Calcium volume in the right coronary cusp was an independent predictor of new pacemaker (HR = 1.18 per 100 m3 increment; p = 0.04), whereas calcium volume of the non-coronary cusp had a protective effect (HR = 0.78 per 100 mm3 increment; p = 0.004). Severe calcification of the non-coronary/right-coronary commissure was an independent predictor of new AF (HR = 5.1; p = 0.008). Conclusion Computed tomography provides important prognostic information in women undergoing TAVI. Moderate or severe LVOT calcification is associated to an almost two-fold increased risk of mortality or stroke at one year. Different calcification patterns of the aortic valve may predict diverse rhythm abnormalities." @default.
- W2802893531 created "2018-05-17" @default.
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- W2802893531 date "2018-07-01" @default.
- W2802893531 modified "2023-10-14" @default.
- W2802893531 title "Computed tomography predictors of mortality, stroke and conduction disturbances in women undergoing TAVR: A sub-analysis of the WIN-TAVI registry" @default.
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- W2802893531 doi "https://doi.org/10.1016/j.jcct.2018.04.007" @default.
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