Key result
Occult coronary artery obstruction late after the arterial switch operation is a potential source of morbidity and mortality that can contribute to perioperative ventricular dysfunction.
Occult coronary ostial obstruction can be a fatal late complication in patients undergoing reoperation years after an arterial switch operation for transposition of the great arteries.
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Warrants coronary evaluation before reoperation after arterial switch; leaves open optimal late surveillance strategies.
Occult coronary artery obstruction can be a late source of morbidity and mortality following the arterial switch operation for transposition of the great arteries. We describe a case of undiagnosed left coronary ostial obstruction in a teenager which may have contributed to perioperative ventricular dysfunction and subsequent mortality following a reoperation many years after arterial switch.
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Saini et al. (2013) studied this question. Occult coronary artery obstruction late after the arterial switch operation is a potential source of morbidity and mortality that can contribute to perioperative ventricular dysfunction.
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