Sex Differences in Mitral Annular Calcification and the Clinical Implications

Background: Heterogeneous mechanisms may contribute to the occurrence of mitral annular calcification (MAC), however, little is known about the sex differences in MAC and the clinical implications of these differences. This study aimed to investigate clinical and imaging differences of MAC according...

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Main Authors: Jiwon Seo, Hyeonju Jeong, Iksung Cho, Geu-Ru Hong, Jong-Won Ha, Chi Young Shim
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-10-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2021.736040/full
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author Jiwon Seo
Hyeonju Jeong
Iksung Cho
Geu-Ru Hong
Jong-Won Ha
Chi Young Shim
author_facet Jiwon Seo
Hyeonju Jeong
Iksung Cho
Geu-Ru Hong
Jong-Won Ha
Chi Young Shim
author_sort Jiwon Seo
collection DOAJ
description Background: Heterogeneous mechanisms may contribute to the occurrence of mitral annular calcification (MAC), however, little is known about the sex differences in MAC and the clinical implications of these differences. This study aimed to investigate clinical and imaging differences of MAC according to sex.Methods: In total, 537 patients (221 men) with MAC were identified by transthoracic echocardiography at a single center from January 2012 to June 2016. Moderate-to-severe MAC was defined as calcification extent ≥120° of the mitral annulus. Significant functional mitral stenosis (MS) was defined as a transmitral mean diastolic pressure gradient ≥5 mmHg.Results: Women more frequently had moderate-to-severe MAC and concomitant mitral regurgitation than men; however, significant functional MS was comparable between sexes. In the logistic regression analysis, old age, uncontrolled hypertension, end-stage renal disease (ESRD), and obstructive hypertrophic cardiomyopathy were significantly associated with moderate-to-severe MAC in women, whereas ESRD and moderate-to-severe aortic stenosis were in men. In the Cox regression analysis, significant functional MS was associated with all-cause death in both sexes, although an independent association was found in only women.Conclusion: Women had more extended MAC than men. Significant functional MS was independently associated with unfavorable clinical outcomes in patients with MAC, which was more pronounced in women than in men.
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spelling doaj.art-df79b0ba8af4416cb395d25e11e435df2022-12-21T21:28:43ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2021-10-01810.3389/fcvm.2021.736040736040Sex Differences in Mitral Annular Calcification and the Clinical ImplicationsJiwon Seo0Hyeonju Jeong1Iksung Cho2Geu-Ru Hong3Jong-Won Ha4Chi Young Shim5Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South KoreaDivision of Cardiology, Department of Internal Medicine, Myongji Hospital, Hanyang University Medical Center, Seoul, South KoreaDivision of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South KoreaDivision of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South KoreaDivision of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South KoreaDivision of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South KoreaBackground: Heterogeneous mechanisms may contribute to the occurrence of mitral annular calcification (MAC), however, little is known about the sex differences in MAC and the clinical implications of these differences. This study aimed to investigate clinical and imaging differences of MAC according to sex.Methods: In total, 537 patients (221 men) with MAC were identified by transthoracic echocardiography at a single center from January 2012 to June 2016. Moderate-to-severe MAC was defined as calcification extent ≥120° of the mitral annulus. Significant functional mitral stenosis (MS) was defined as a transmitral mean diastolic pressure gradient ≥5 mmHg.Results: Women more frequently had moderate-to-severe MAC and concomitant mitral regurgitation than men; however, significant functional MS was comparable between sexes. In the logistic regression analysis, old age, uncontrolled hypertension, end-stage renal disease (ESRD), and obstructive hypertrophic cardiomyopathy were significantly associated with moderate-to-severe MAC in women, whereas ESRD and moderate-to-severe aortic stenosis were in men. In the Cox regression analysis, significant functional MS was associated with all-cause death in both sexes, although an independent association was found in only women.Conclusion: Women had more extended MAC than men. Significant functional MS was independently associated with unfavorable clinical outcomes in patients with MAC, which was more pronounced in women than in men.https://www.frontiersin.org/articles/10.3389/fcvm.2021.736040/fullmitral annular calcification (MAC)sexechocardiographymitral stenosis (MS)mitral valve (MV)
spellingShingle Jiwon Seo
Hyeonju Jeong
Iksung Cho
Geu-Ru Hong
Jong-Won Ha
Chi Young Shim
Sex Differences in Mitral Annular Calcification and the Clinical Implications
Frontiers in Cardiovascular Medicine
mitral annular calcification (MAC)
sex
echocardiography
mitral stenosis (MS)
mitral valve (MV)
title Sex Differences in Mitral Annular Calcification and the Clinical Implications
title_full Sex Differences in Mitral Annular Calcification and the Clinical Implications
title_fullStr Sex Differences in Mitral Annular Calcification and the Clinical Implications
title_full_unstemmed Sex Differences in Mitral Annular Calcification and the Clinical Implications
title_short Sex Differences in Mitral Annular Calcification and the Clinical Implications
title_sort sex differences in mitral annular calcification and the clinical implications
topic mitral annular calcification (MAC)
sex
echocardiography
mitral stenosis (MS)
mitral valve (MV)
url https://www.frontiersin.org/articles/10.3389/fcvm.2021.736040/full
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