Postoperative aortic regurgitation related to peroperative blood flowmetry in ball valve replacement.
D000328:Adult; D000790:Angiocardiography; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D001783:Blood Flow Velocity; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000401:mortality; D011183:Postoperative Complications / Q000601:surgery; D011300:Preoperative Care; D011379:Prognosis