title: Nonsurgical correction of a "frozen" disc valve prosthesis using a catheter technique and intracardiac streptokinase infusion.
abstract: An immobile disc of a Björk-Shiley valve prosthesis positioned within a right ventricle to main pulmonary artery conduit was restored to normal function through mechanical tugging of a balloon catheter combined with selective right ventricular streptokinase infusion.
mesh_terms: D006328:Cardiac Catheterization; D002675:Child, Preschool; D004868:Equipment Failure; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D011664:Pulmonary Valve / Q000002:abnormalities / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography; D013300:Streptokinase / Q000008:administration & dosage*; D013771:Tetralogy of Fallot / Q000601:surgery
chemical_list: D013300:Streptokinase