Ventricular septation is a biventricular repair for certain types of functionally univentricular hearts. Double inlet left ventricle (DILV) is one type of functionally univentricular heart which in certain instances is amenable to ventricular septation. Thirty-four patients underwent ventricular septation for DILV from 1971 to 2000. Hospital death occurred in seven and late death in two. Mean follow-up period was 15 years. Actuarial survival rate was 73.3% (24 patients) at 15 years, 73.3% (15 patients) at 20 years, 73.3% (five patients) at 25 years, and 73.3% (one patient) at 30 to 40 years. Ventricular septation is an alternative to Fontan operation for selected patients with single ventricle, DILV.
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