Acute aortic regurgitation (report of four cases).
D000208:Acute Disease; D000328:Adult; D001022:Aortic Valve Insufficiency / Q000209:etiology*; D004697:Endocarditis, Bacterial / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D013203:Staphylococcal Infections / Q000150:complications