The problem of insufficiency following homograft replacement of the aortic valve.
D000293:Adolescent; D000328:Adult; D000790:Angiocardiography; D001021:Aortic Valve / Q000637:transplantation*; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D006439:Hemodynamics; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications; D014021:Tissue Preservation; D014184:Transplantation, Homologous