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Published online: 2021-04-29
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Association between calcification of mitro-aortic continuity and mitral regurgitation in patients undergoing transcatheter aortic valve replacement

Małgorzata Ryś, Tomasz Hryniewiecki, Adam Witkowski, Ilona Michałowska, Karina Zatorska, Patrycjusz Stokłosa, Małgorzata Nieznańska, Piotr Szymański
Pubmed: 33926170

open access

Online first
Original article
Published online: 2021-04-29

Abstract

ABSTRACT Background: Presence of mitral annular calcification (MAC) affects prognosis in patients undergoing transcatheter aortic valve implantation (TAVI). MAC frequently coexists with calcifications of mitro-aortic continuity (CMAC). Aims: We aimed at qualitative and semi-quantitative analysis of calcifications of the mitral complex - MAC and CMAC in multi-slice computed tomography, in order to assess their impact on the occurrence and dynamics of mitral regurgitation (MR) following TAVI. Methods: The study group consisted of 94 patients (mean [SD] age was 79.9 [8.02] years; 67.1% female). Agatston scale - Calcium Score was used for quantitative analysis. MAC and CMAC were also assessed semi-quantitatively as either non-severe or severe. MR following TAVI was defined as unchanged, improved or worsened by at least one degree. Results: Patients with MAC (59,6%) had higher mean aortic gradients (P = 0.02) and smaller left ventricular diastolic diameter (P = 0.002). Patients with CMAC (48.9%) had higher Calcium Score aortic valve (P = 0.006). After TAVI MR improved in 17 (18.1%) patients and worsened in 7 (7.5%) patients. In multivariable logistic regression analysis MR worsening was associated with higher CMAC [OR 1.092 (95% CI) 1.006 -1.185, P = 0.03], as well as bicuspid aortic valve [OR 6.348 (95% CI) 1.048-38.436, P = 0.04]. Conclusions: CMAC was associated with MR worsening following TAVI. This is of relevance in procedural planning in patients with severe AS and coexisting MR in whom arguments for and against surgical repair of concomitant mitral insufficiency are considered.

Abstract

ABSTRACT Background: Presence of mitral annular calcification (MAC) affects prognosis in patients undergoing transcatheter aortic valve implantation (TAVI). MAC frequently coexists with calcifications of mitro-aortic continuity (CMAC). Aims: We aimed at qualitative and semi-quantitative analysis of calcifications of the mitral complex - MAC and CMAC in multi-slice computed tomography, in order to assess their impact on the occurrence and dynamics of mitral regurgitation (MR) following TAVI. Methods: The study group consisted of 94 patients (mean [SD] age was 79.9 [8.02] years; 67.1% female). Agatston scale - Calcium Score was used for quantitative analysis. MAC and CMAC were also assessed semi-quantitatively as either non-severe or severe. MR following TAVI was defined as unchanged, improved or worsened by at least one degree. Results: Patients with MAC (59,6%) had higher mean aortic gradients (P = 0.02) and smaller left ventricular diastolic diameter (P = 0.002). Patients with CMAC (48.9%) had higher Calcium Score aortic valve (P = 0.006). After TAVI MR improved in 17 (18.1%) patients and worsened in 7 (7.5%) patients. In multivariable logistic regression analysis MR worsening was associated with higher CMAC [OR 1.092 (95% CI) 1.006 -1.185, P = 0.03], as well as bicuspid aortic valve [OR 6.348 (95% CI) 1.048-38.436, P = 0.04]. Conclusions: CMAC was associated with MR worsening following TAVI. This is of relevance in procedural planning in patients with severe AS and coexisting MR in whom arguments for and against surgical repair of concomitant mitral insufficiency are considered.
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About this article
Title

Association between calcification of mitro-aortic continuity and mitral regurgitation in patients undergoing transcatheter aortic valve replacement

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Online first

Article type

Original article

Published online

2021-04-29

Pubmed

33926170

Authors

Małgorzata Ryś
Tomasz Hryniewiecki
Adam Witkowski
Ilona Michałowska
Karina Zatorska
Patrycjusz Stokłosa
Małgorzata Nieznańska
Piotr Szymański

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