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- W2160308897 abstract "Background— To retrospectively investigate the potential cause of contained rupture of the aortic root in balloon-expandable transcatheter aortic valve implantation (TAVI) by means of pre- and postinterventional multislice computed tomography. Methods and Results— Seventy-two patients (mean age 82±7 years, mean aortic valve area 0.69±0.19 cm 2 ) underwent balloon-expandable TAVI using the EdwardsSAPIEN Transcatheter Heart Valve (23 mm, n=19; 26 mm, n=50; 29 mm, n=3). Aortic annulus dimensions were quantified by multislice computed tomography–based cross-sectional area assessment and average diameter calculation (CAAD) before and after TAVI. Post-TAVI multislice computed tomography data sets were available in 65 patients; contained aortic root rupture was diagnosed in 3 patients. Pre-TAVI CAAD was 23.1±1.8 mm; post-TAVI CAAD was 22.9±1.3 mm. Median relative change in CAAD pre- and post-TAVI was −0.5% (interquartile range, 3.6%). Relative increase of 5% to 10% was observed in 4 patients (1 with contained rupture), relative increase >10% in 2 patients, both with contained rupture. Mean relative oversizing, calculated as the relative difference in diameter between pre-TAVI CAAD and nominal diameter of the selected prosthesis, was 9.8%±7.8%. Relative oversizing was significantly higher in patients with contained rupture compared with patients without contained rupture (24.6%±5.4% versus 9.1%±6.6%; P <0.001). Relative oversizing ≥20% occurred in 6 patients (3 with contained rupture). Conclusions— Contained rupture of the aortic root in balloon-expandable TAVI is associated with severe prosthesis oversizing. Multislice computed tomography–based assessment of aortic annulus dimension in conjunction with adapted sizing guidelines may reduce the incidence of severe oversizing." @default.
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- W2160308897 date "2012-08-01" @default.
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- W2160308897 title "Prosthesis Oversizing in Balloon-Expandable Transcatheter Aortic Valve Implantation Is Associated With Contained Rupture of the Aortic Root" @default.
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- W2160308897 doi "https://doi.org/10.1161/circinterventions.111.967349" @default.
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