Objective: Double switch operation (DSO) to restore an anatomic correction seems to be more appealing for long-term prognosis We evaluated our results to determine the advantages and potential future complications of this operation.

Material: Between1995 and 2008 14 patients were accepted as candidates for DSO. In 4 patients with systemic atrioventricular valve dysfunction pulmonary artery banding was performed first. Of these one had completion of DSO 18 months after the banding procedure. Total of 11 patients had anatomical correction which 8 of them had arterial switch combined with Senning procedure and 3 patients with pulmonary stenosis underwent atrial switch plus a Rastelli type procedure. The median age was 59.8 months, (6 months - 8 years).

Results: Median follow up was 57 months, (6 months – 13 years). There was no in hospital or late mortality. One patient required early pacemaker implantation after the surgery for complete heart block There was one early (3rd postoperative day) and one late (8 th year) postoperative reintervention for pulmonary venous baffle obstruction. In the latter patient simultaneous surgical radiofrequency ablation for WPW was also performed. Two patients who underwent Rastelli type procedure needed reoperation for conduit obstruction (early thrombectomy for Contegra thrombosis in one and late conduit replacement in the other at postoperative 6th year).

Conclusion:
Anatomic correction in C-TGA can be performed with acceptable mortality and morbidity. We believe this procedure could have better prognosis compared to conventional repair. Close follow-up is needed for occurrence of supraventricular arrythmias, atrial baffle and conduit obstruction.