Parameters of the mitral apparatus in patients with ischemic and nonischemic dilated cardiomyopathy

Area of Science:

• Cardiology
• Cardiac Surgery
• Biomedical Engineering

Background:

• The mitral valve apparatus comprises the annulus, leaflets, chordae tendineae, and papillary muscles.
• Left ventricular disease can impair mitral valve function, leading to secondary mitral regurgitation.
• This condition arises from structural distortions of the mitral valve components.

Purpose of the Study:

• To review the normal anatomy and pathophysiology of mitral valve changes in dilated cardiomyopathies.
• To emphasize the importance of a comprehensive multiparametric assessment of the mitral valve apparatus and left ventricle.
• To highlight the prognostic value of anatomical parameters and their role in predicting mitral valve repair outcomes.

Main Methods:

• Narrative review of existing literature.
• Description of normal mitral valve anatomy.
• Pathophysiological analysis of mitral valve alterations in ischemic and non-ischemic dilated cardiomyopathies.

Main Results:

• Functional mitral regurgitation results from left ventricular dysfunction affecting mitral valve geometry.
• Various anatomical parameters of the mitral apparatus and left ventricle are critical for assessment.
• Quantitative regurgitation measures alone are insufficient for a complete evaluation.

Conclusions:

• A multiparametric assessment, including quantitative and anatomical parameters, is essential for understanding functional mitral regurgitation.
• These parameters provide prognostic information and predict the success of mitral valve repair.
• Understanding these complex interactions is vital for effective clinical management.