Primary tetralogy of Fallot repair: Predictors of intensive care unit morbidity

BackgroundPrimary repair of tetralogy of Fallot has low surgical mortality, but some patients still experience significant postoperative morbidity. Our objectives were to review our institutional experience with primary tetralogy of Fallot repair, and identify predictors of intensive care unit morbidity.MethodsWe reviewed all patients with tetralogy of Fallot who underwent primary repair in infancy from 2001 to 2012. Preoperative, operative, and postoperative demographic and morphologic data were analyzed. Intensive care unit morbidity was defined as prolonged intensive care unit stay (≥7 days) and/or prolonged duration of mechanical ventilation (≥48 h).Results97 patients who underwent primary surgical repair during the study period were included in the study. The median age was 4.9 months (range 1–9 months) and the median weight was 5.3 kg (range 3.1–9.8 kg). There was no early surgical mortality. The incidence of junctional ectopic tachycardia and persistent complete heart block was 2% and 1%, respectiv...