James Malcolmson, Alex Shipolini, Saidi Mohiddin, Konstantinos Savvatis
{"title":"The mitral valve in hypertrophic cardiomyopathy.","authors":"James Malcolmson, Alex Shipolini, Saidi Mohiddin, Konstantinos Savvatis","doi":"10.1097/HCO.0000000000001067","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose of review: </strong>Whilst abnormally increased left ventricular wall thickness is the hallmark feature of hypertrophic cardiomyopathy (HCM), anomalies of the mitral valve and supporting apparatus are well documented. This review addresses the clinical importance of mitral valve abnormalities in HCM, their mechanistic associations with symptoms, and therapeutic strategies targeting mitral valve and apparatus abnormalities.</p><p><strong>Recent findings: </strong>The normal mitral valve possesses anatomical features facilitating unrestricted blood flow during LV filling, preventing regurgitation during LV systole, and avoiding obstruction of LV ejection. In HCM, a variety of structural and functional abnormalities can conspire to cause deranged mitral valve function, with implications for management strategy. Identification and characterization of these abnormalities is facilitated by multimodality imaging. Alcohol septal ablation (ASA) cannot address primary mitral valve abnormalities, and so is not preferred to surgical intervention if mitral valve abnormalities are present and are judged to make dominant contributions to LV outflow tract obstruction (LVOTO). Two broadly opposing surgical intervention strategies exist, one advocating isolated septal myectomy and the other including adjuvant mitral apparatus modification. Newer, less invasive surgical and transcatheter techniques will expand interventional options.</p><p><strong>Summary: </strong>Mitral valve abnormalities are a central pathological feature of HCM. Multimodality imaging is crucial for their identification and characterization prior to therapeutic intervention.</p>","PeriodicalId":55197,"journal":{"name":"Current Opinion in Cardiology","volume":"38 5","pages":"415-423"},"PeriodicalIF":2.0000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Opinion in Cardiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/HCO.0000000000001067","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
引用次数: 4
Abstract
Purpose of review: Whilst abnormally increased left ventricular wall thickness is the hallmark feature of hypertrophic cardiomyopathy (HCM), anomalies of the mitral valve and supporting apparatus are well documented. This review addresses the clinical importance of mitral valve abnormalities in HCM, their mechanistic associations with symptoms, and therapeutic strategies targeting mitral valve and apparatus abnormalities.
Recent findings: The normal mitral valve possesses anatomical features facilitating unrestricted blood flow during LV filling, preventing regurgitation during LV systole, and avoiding obstruction of LV ejection. In HCM, a variety of structural and functional abnormalities can conspire to cause deranged mitral valve function, with implications for management strategy. Identification and characterization of these abnormalities is facilitated by multimodality imaging. Alcohol septal ablation (ASA) cannot address primary mitral valve abnormalities, and so is not preferred to surgical intervention if mitral valve abnormalities are present and are judged to make dominant contributions to LV outflow tract obstruction (LVOTO). Two broadly opposing surgical intervention strategies exist, one advocating isolated septal myectomy and the other including adjuvant mitral apparatus modification. Newer, less invasive surgical and transcatheter techniques will expand interventional options.
Summary: Mitral valve abnormalities are a central pathological feature of HCM. Multimodality imaging is crucial for their identification and characterization prior to therapeutic intervention.
期刊介绍:
Current Opinion in Cardiology is a bimonthly publication offering a unique and wide ranging perspective on the key developments in the field. Each issue features hand-picked review articles from our team of expert editors. With fourteen disciplines published across the year – including arrhythmias, molecular genetics, HDL cholesterol and clinical trials – every issue also contains annotated reference detailing the merits of the most important papers.