Illustration demonstrating an open-heart surgery to repair a mitral valve that is narrowed from mitral valve stenosis.
A commissurotomy is a
surgical incision of a
commissure in the body, as one made in the heart at the edges of the commissure formed by
cardiac valves, or one made in the brain to treat certain psychiatric disorders.
scleroderma, a disease that thickens and hardens the skin, sometimes require oral commissurotomy to open the corners of the mouth, the commissures, to allow dental treatment. This procedure often leaves characteristic scars.