Postoperative evaluation of the Fontan procedure by radionuclide angiography.
Seven patients were evaluated by radionuclide angiography (RNA) following Fontan-like procedures for complex cyanotic congenital defects. Both first-pass and ECG gated equilibrium angiography were performed in each. Residual right-to-left shunts, right atrial (RA) outflow and pulmonary arterial obstruction, and left ventricular dysfunction were demonstrated by these techniques. In addition, RA ejection fraction (RAEF) by gated equilibrium scan was measured in each patient. Relatively low RAEF was seen in conjunction with residual obstruction to pulmonary flow. RNA is useful in the postoperative evaluation of patients after Fontan procedures.
D000293:Adolescent; D000328:Adult; D006348:Cardiac Surgical Procedures / Q000379:methods*; D002648:Child; D005069:Evaluation Studies as Topic; D006321:Heart / Q000000981:diagnostic imaging*; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011184:Postoperative Period; D011666:Pulmonary Valve Stenosis / Q000601:surgery; D011877:Radionuclide Imaging; D014188:Transposition of Great Vessels / Q000601:surgery; D014261:Tricuspid Valve / Q000002:abnormalities