Arterial Switch Operation Variables Predicting Reoperation.

Objectives: Jatene surgery or arterial switch is performed at our institution since the late nineties. We reviewed our results to identify the main causes of reoperation and, more importantly, to determine what variables predict the need for reoperation.

Methods: In this retrospective analysis were included all the 91 patients with d-TGA who underwent an arterial switch operation at our institution between 1995 and 2016.

Results: Mean follow-up was 10 years (range 5-25 years). Seventy-one percent of patients had simple TGA and 29% had complex TGA. The need of reoperation was 21% (n=19 patients). Right ventricle outflow tract obstruction was the main indication for reoperation (58%). The overall mortality was 9.9%. The gender (P= 0.8), diagnosis (simple or complex TGA) (P= 0,5) or the existence of palliative surgeries (P=0.9) were unable to predict the need for reoperation. The presence of anomalous coronary pattern was the only variable reaching statistical significance (P < 0.05), both in univariate and multivariate analysis.

Conclusions: In our series, the main indication for reoperation after arterial switch operation was right ventricle outflow tract obstruction and the only predictive variable was the presence of anomalous coronary pattern.