Clinical Observations before and after Mitral Valvuloplasty

Abstract
OPERATIVE correction of the stenotic mitral valve has become an established surgical procedure during the past seven years, and is being performed with increasing frequency. Much has been learned about the indications for surgery, the surgical technics, the operative risks and complications, and the symptomatic improvement to be expected in properly selected patients. Much remains to be learned, and certain misunderstandings persist. It should be remembered that the scarred, deformed and often calcified mitral valve cannot be transformed into a normal structure even though its function may be improved. Furthermore, there are factors besides the anatomic deformity that contribute to . . .