Five-year neurocognitive and health outcomes after the neonatal arterial switch operation.

Objectives: We sought to assess the 5-year neurocognition and health of an interprovincial inception cohort undergoing the arterial switch operation for transposition of the great arteries.

Methods: Sixty-nine consecutive neonates had operations from 1996-2003 with full-flow cardiopulmonary bypass and selective deep hypothermic circulatory arrest. Outcomes were recorded at 58 +/- 9 months of age.