mitral regurgitation; mitral insufficiency
Medical term for a heart valve disorder where the mitral valve does not close properly, allowing blood to leak backward.
僧帽弁閉鎖不全は、心臓の弁が完全に閉じない状態です。
Mitral regurgitation is a condition in which the heart valve does not close completely.
僧帽弁閉鎖不全 is the full Japanese medical term for mitral regurgitation, while ＭＲ is the clinical abbreviation used by doctors.
Compound of 僧帽弁 (mitral valve) + 閉鎖不全 (insufficiency, incomplete closure). The term is a direct medical compound.