Comparing palliation strategies for single-ventricle anatomy with transposed great arteries and systemic outflow obstruction.

On preoperative echocardiography ( Tables 1 , E2 , and E3 , and Figure E1 , Figure E2 , Figure E3 ), there was a nearly statistically significant trend ( P = .052) toward greater prevalence of pulmonary valve pathology, defined as greater than mild insufficiency and/or leaflet thickening, in the PAB group.

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Nine patients (13%) required any coarctation reintervention (balloon angioplasty or operation) following index palliation, with a nonsignificant trend toward greater rates after Norwood ( Table 3 ).

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