PEDIATRIC CARDIOLOGY Early and Late Results of the Modified Fontan Procedure for DoubleInlet Left Ventricle : The Mayo Clinic Experience

Between May 1974 and March 1989, 155 patients with double . inlet left ventricle had the Foment procedure performed at the Mayo Clinic . Age at operation ranged from nearly 2 to 41 years (median l0). The operative mortality rate from 1974 through 1980 (39 patients) was 2190, but from 1981 through 1989 (116 patients) it was reduced to 9% . The 17 late deaths were secondary to reoperation in = 8), progressive myocardial failure (n = 5), sudden arrhythmia In = 31 and bleeding canoes (n = 1) . Neither operative nor late mortality rate was significantly related to age at operation . At follow-up or