Sex Differences in Extensive Mitral Annular Calcification With Associated Mitral Valve Dysfunction - 31/03/23
, Evin Yucel, MD a, 1, Samuel Bernard, MD a, b, Mayooran Namasivayam, MBBS, PhD a, c, Yasufumi Nagata, MD, PhD a, d, Emily S. Lau, MD a, Sebastien Deferm, MD, PhD e, Wei He, MSc a, Jacqueline S. Danik, MD, DrPH a, Danita Y. Sanborn, MD a, Michael H. Picard, MD a, Robert A. Levine, MD a, Judy Hung, MD a, Philippe B. Bertrand, MD, PhD a, fRésumé |
Mitral annular calcification (MAC)-related mitral valve (MV) dysfunction is an increasingly recognized entity, which confers a high burden of morbidity and mortality. Although more common among women, there is a paucity of data regarding how the phenotype of MAC and the associated adverse clinical implications may differ between women and men. A total of 3,524 patients with extensive MAC and significant MAC-related MV dysfunction (i.e., transmitral gradient ≥3 mm Hg) were retrospectively analyzed from a large institutional database, with the goal of defining gender differences in clinical and echocardiographic characteristics and the prognostic importance of MAC-related MV dysfunction. We stratified patients into low- (3 to 5 mm Hg), moderate- (5 to 10 mm Hg), and high- (≥10 mm Hg) gradient groups and analyzed the gender differences in phenotype and outcome. The primary outcome was all-cause mortality, assessed using adjusted Cox regression models. Women represented the majority (67%) of subjects, were older (79.3 ± 10.4 vs 75.5 ± 10.9 years, p <0.001) and had a lower burden of cardiovascular co-morbidities than men. Women had higher transmitral gradients (5.7 ± 2.7 vs 5.3 ± 2.6 mm Hg, p <0.001), more concentric hypertrophy (49% vs 33%), and more mitral regurgitation. The median survival was 3.4 years (95% confidence interval 3.0 to 3.6) among women and 3.0 years (95% confidence interval 2.6 to 4.5) among men. The adjusted survival was worse among men, and the prognostic impact of the transmitral gradient did not differ overall by gender. In conclusion, we describe important gender differences among patients with MAC-related MV dysfunction and show worse adjusted survival among men; although, the adverse prognostic impact of the transmitral gradient was similar between men and women.
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| This study was supported, in part, by a grant of the National Institutes of Health (Bethesda, Maryland) grant R01 HL141917 (Drs. Levine and Hung). Dr. Churchill is supported by the National Institutes of Health 1K23HL159262-01A1. |
Vol 193
P. 83-90 - avril 2023 Retour au numéro
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