Left Atrioventricular Valve Insufficiency

Insufficiency of the left atrioventricular valve (insufficientia valvae atrioventricularis sinistrae; synonym - mitral insufficiency) is a pathological condition in which incomplete closure of the leaflets of the left atrioventricular (mitral) valve occurs during left ventricular systole.

This results in regurgitation (backflow) of blood from the left ventricle into the left atrium during systole. Causes of insufficiency may be lesions of the valve itself (for example, infective endocarditis), dilatation of the left ventricle due to its failure, rheumatic lesions, or congenital abnormalities of the valve.

Clinically, failure is manifested by systolic murmur in the projection of the apex of the heart, shortness of breath, and a feeling of palpitations. Diagnosed using auscultation, ECG, EchoCG. Treatment, depending on the cause, can be medicinal or surgical - plastic surgery or valve replacement.

Treatment for AOK deficiency is not required. The mortality rate in children is low. According to modern data, life is at risk for patients with orifice stenosis who require multivalve replacement in childhood. It is recommended to decide on surgery in the first year of life when a certain size of the valve leaflets is reached. Considering the good results of mitral commissuroto