What is BMV, a cardiac operation?

What is BMV, a cardiac operation?

BMV is short form for balloon mitral valvotomy. It is a method of dilating a narrowed mitral valve (valve between the left atrium (upper chamber of the heart) non surgically. A balloon catheter (small tube with a balloon attached at the tip) is introduced through a small nick in the groin, under local anaesthesia. It is guided to the heart under X-ray fluroscopic imaging and placed across the mitral valve. Once position is confirmed, the balloon is inflated to relieve the obstruction in the mitral valve (mitral stenosis).