title: Long-term results following surgical operation of tetralogy of Fallot.
abstract: (1) The ECGs of 84 patients who survived corrective surgery for tetralogy of Fallot were reviewed. The overall incidence of sudden death during at least 5 years period of follow-up was 4%, mortality being highest in those with CRBBB and LAH (40%). (2) The ratio of leftward to rightward QRS forces projected on the X axis (Rs/Sx) is significantly decreased in postoperative T/F patients. (3) Twenty-seven patients who had corrective surgery for tetralogy of Fallot underwent cardiac catheterization postoperatively. LVEF was mildly, but significantly diminished and LVEDV was increased significantly, while peak dp/dt, Vpm and Vmax were significantly depressed. These findings indicate that patients who had corrective surgery for tetralogy of Fallot have impaired left ventricular function.
mesh_terms: D000293:Adolescent; D000328:Adult; D002037:Bundle-Branch Block / Q000209:etiology; D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D003645:Death, Sudden / Q000209:etiology; D004562:Electrocardiography; D005500:Follow-Up Studies; D006321:Heart / Q000503:physiopathology; D006801:Humans; D007223:Infant; D011183:Postoperative Complications / Q000453:epidemiology*; D013771:Tetralogy of Fallot / Q000601:surgery*; D013997:Time Factors