CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Angiotensin–neprilysin inhibition versus enalapril in heart failure 中国心力衰竭诊断和治疗指南2018 Diuretic Therapy for Patients With Heart Failure JACC State-of-the-Art Review Randomized Trial of Stents Versus Bypass Surgery for Left Main Coronary Artery Disease: 5-Year Outcomes of the PRECOMBAT Study Novel percutaneous interventional therapies in heart failure with preserved ejection fraction: an integrative review The spectrum of heart failure: value of left ventricular ejection fraction and its moving trajectories Frequency, predictors, and prognosis of ejection fraction improvement in heart failure: an echocardiogram-based registry study Effect of Intravascular Ultrasound-Guided Drug-Eluting Stent Implantation: Five-Year Follow-Up of the IVUS-XPL Randomized Trial Sildenafil for improving outcomes in patients with corrected valvular heart disease and persistent pulmonary hypertension: a multicenter, double-blind, randomized clinical trial Impact of the complexity of bifurcation lesions treated with drug-eluting stents: the DEFINITION study (Definitions and impact of complEx biFurcation lesIons on clinical outcomes after percutaNeous coronary IntervenTIOn using drug-eluting steNts)

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.