Aortic commissurotomy under direct vision.
D001011:Aorta; D001021:Aortic Valve; D001024:Aortic Valve Stenosis; D006348:Cardiac Surgical Procedures; D003251:Constriction, Pathologic; D008946:Mitral Valve Stenosis / Q000628:therapy*
AORTIC VALVE/stenosis; COMMISSUROTOMY