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- W2893501897 abstract "ObjectiveTo assess risk factors for paravalvular leak (PVL) after transcatheter aortic valve implantation in a large single-center cohort, including measurement of aortic valve calcification using a reproducible method.MethodsWe retrospectively analyzed preoperative contrast-enhanced multidetector computed tomography scans of patients who underwent transcatheter aortic valve implantation in our center between 2009 and 2016. Calcium volume was calculated for each aortic cusp in the aortic valve, left ventricular outflow tract, and device landing zone.ResultsOverall, 539 patients were included in the study who had experience with 4 prothesis types (SapienXT [Edwards Lifesciences, Irvine, Calif] [n = 192], Sapien3 [Edwards Lifesciences] [n = 206], CoreValve EvolutR [Medtronic, Minneapolis, Minn] [n = 44], and Acurate [Symetis, Ecublens, Switzerland] [n = 97]). Median calcium volume in the device landing zone was 757 mm3, with no significant differences among the 4 prosthesis groups. None of the patients had severe PVL. The overall incidence of mild-to-moderate PVL was 15.8% (95% confidence interval [CI], 12.8%-19.1%). On multivariate logistic regression, device landing zone calcification (P = .00006; odds ratio for an increase of 100 mm3, 1.08; 95% CI, 1.04-1.13) and use of the CoreValve (P = .0028; odds ratio, 4.1; 95% CI, 1.6-10 with SapienXT as reference) prosthesis were found to be associated with mild or greater PVL. In contrast, degree of oversizing (P = .002; odds ratio, 0.97; 95% CI, 0.95-0.99), and use of Sapien3 (P = .00005; odds ratio, 0.23; 95% CI, 0.11-0.47 with SapienXT as reference) were associated with a lower incidence of mild or greater PVL.ConclusionsAortic calcification volume in the device landing zone is associated with residual PVL after transcatheter aortic valve implantation. When taking calcification into account, the balloon-expandable prosthesis Sapien3 seems to be associated with a lower incidence of PVL." @default.
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- W2893501897 date "2019-04-01" @default.
- W2893501897 modified "2023-10-09" @default.
- W2893501897 title "Risk factors for paravalvular leak after transcatheter aortic valve replacement" @default.
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- W2893501897 doi "https://doi.org/10.1016/j.jtcvs.2018.08.085" @default.
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