CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

2020 Expert Consensus Decision Pathway on Novel Therapies for Cardiovascular Risk Reduction in Patients With Type 2 Diabetes Evolving concepts in the management of antithrombotic therapy in patients undergoing transcatheter aortic valve implantation Randomized Comparison Between Everolimus-Eluting Bioresorbable Scaffold and Metallic Stent: Multimodality Imaging Through 3 Years Rivaroxaban Plus Aspirin in Patients With Vascular Disease and Renal Dysfunction: From the COMPASS Trial Acute Coronary Syndrome, Antiplatelet Therapy, and Bleeding: A Clinical Perspective MINOCA: a heterogenous group of conditions associated with myocardial damage 2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines SR-B1 Drives Endothelial Cell LDL Transcytosis via DOCK4 to Promote Atherosclerosis Benefit-risk profile of extended dual antiplatelet therapy beyond 1 year in patients with high risk of ischemic or bleeding events after PCI Use of Risk Assessment Tools to Guide Decision-Making in the Primary Prevention of Atherosclerotic Cardiovascular Disease : A Special Report From the American Heart Association and American College of Cardiology

Review Article2020 Dec 18;S0828-282X(20)31146-6.

JOURNAL:Can J Cardiol. Article Link

Pathophysiology, diagnosis and new therapeutic approaches for ischemic mitral regurgitation

S Hadjadj, O Marsit, J-M Paradis et al. Keywords: ischemic mitral regurgitation; diagnosis; therapy

ABSTRACT

Ischemic mitral regurgitation is a valvular complication frequently seen in patients with coronary artery disease and associated with increased mortality and morbidity. Ischemic mitral regurgitation has a complex, heterogeneous and still incompletely understood pathophysiology involving both the mitral valve and the left ventricle. The occurrence of valve regurgitation in patients with ischemic cardiomyopathy will in return accelerate left ventricular remodeling and dysfunction, ultimately leading to irreversible heart failure. Diagnostic evaluation of ischemic mitral regurgitation is unique and different from the other causes of mitral regurgitation. The severity thresholds associated with outcomes are different from primary MR, and specific imaging characteristics are potentially useful to guide therapy. The use of imaging modalities such as 3D echocardiography and cardiac MRI can refine the diagnostic evaluation and help to choose the correct management. While multiple treatments are available to improve ischemic mitral regurgitation, each therapeutic option is associated with limitations and incomplete success. Therapy has therefore to be individualized for each patient. Current options include optimal medical therapy, cardiac resynchronization, percutaneous or surgical revascularization, surgical mitral repair or replacement and new percutaneous interventions. The current manuscript aims to discuss the last insights on the pathophysiology, diagnosis and treatments of ischemic mitral regurgitation.
Mitral regurgitation (MR) is a frequent disease with significant morbidity 
 
. There are multiple causes to MR, each with their own management strategies. Secondary (or functional) MR occurs in response to a primary left ventricle (LV) disease and currently represents a formidable therapeutic challenge. While clearly associated with adverse prognosis, few treatments have been shown to influence clinical outcomes in this population. Most data for secondary MR are derived from patients with ischemic heart disease, in which case the term ischemic MR is used. Ischemic MR has a complex physiology involving both the LV and the mitral leaflets. Multiple characteristics are making the diagnostic evaluation and treatment of ischemic MR unique and distinct from the other causes of MR.