Quantitative estimation of aortic valve calcification in multislice computed tomography in predicting the development of paravalvular leaks following transcatheter aortic valve replacement
| Autor: | Małgorzata Ryś, Patrycjusz Stokłosa, Monika Różewicz-Juraszek, Kryspin Mirota, Tomasz Hryniewiecki, Ilona Michałowska, Zbigniew Chmielak, Piotr Szymański, Maciej Dąbrowski |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Aortic valve
medicine.medical_specialty Original Paper Transcatheter aortic business.industry medicine.medical_treatment aortic stenosis Multislice computed tomography Regurgitation (circulation) 030204 cardiovascular system & hematology Prosthesis aortic regurgitation 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Valve replacement Internal medicine medicine Cardiology 030212 general & internal medicine Cardiac skeleton Aortic valve calcification Cardiology and Cardiovascular Medicine business transcatheter aortic valve implantation |
| Zdroj: | Postępy w Kardiologii Interwencyjnej = Advances in Interventional Cardiology |
| ISSN: | 1897-4295 1734-9338 |
| Popis: | Introduction Transcatheter aortic valve implantation (TAVI) improves prognosis in patients disqualified from surgical valve replacement. Calcifications of the aortic complex can lead to deformation of the prosthesis, resulting in paravalvular leaks (PVL). Aim To evaluate the predictive value of quantitative estimation of volume/weight and geometric distribution of calcifications in multislice computed tomography, for the development of PVL. Material and methods This was a retrospective, case-control study on patients with a CoreValve aortic prosthesis. The study group consisted of 20 patients with confirmed significant PVL after TAVI. The control group consisted of 20 patients without significant PVL, matched according to valve type and clinical characteristics. The size spatial distribution and shape of calcifications were measured. Results The average age of patients was 79.9 years (60% women). Cases and controls did not differ in their clinical characteristics. The size of the aortic annulus was significantly larger in cases vs. controls (23.4 ±1.6 vs. 22 ±1.4 mm, p = 0.01). Volume, area and curvature of calcifications were greater in cases vs controls (1.09 ±0.56 vs. 0.59 ±0.41 cm3, p = 0.011; 15.26 ±5.46 vs. 9.50 ±5.29 cm2, p = 0.008; 1.76 ±0.07 vs. 1.68 ±0.13 cm3, p = 0.037). In multivariate analysis, adjusted for aortic annulus size, the area of aortic valve calcifications independently predicted paravalvular regurgitation (OR = 1.41, 95% CI: 0.09-1.92, p Conclusions Morphometric analysis of aortic valve calcifications predicted the risk of paravalvular leak following TAVI irrespectively of patients' clinical characteristics. |
| Databáze: | OpenAIRE |
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