The median interval between Stages I and II is 10 days (range 5 days to 6 weeks) [105, 111, 118]. Provided that adequate left ventricular mass and volume are rapidly achieved, the early Stage II ASO has the advantage of avoiding pericardial adhesions.

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Recommendations for left ventricular training

ASO: arterial switch operation; BAS: balloon atrial septostomy; IVS: intact ventricular septum; PTFE: polytetrafluoroethylene; TGA: transposition of the great arteries.

^aClass of recommendation.

^bLevel of evidence.

^cReferences.

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Recommendations for left ventricular training

ASO: arterial switch operation; BAS: balloon atrial septostomy; IVS: intact ventricular septum; PTFE: polytetrafluoroethylene; TGA: transposition of the great arteries.

^aClass of recommendation.

^bLevel of evidence.

^cReferences.