Exercise Capacity Long-Term after Arterial Switch Operation for XXXX .

@entity1 @entity3886 @entity26 @entity299
UNASSIGNED: @entity3886 (TGA) is a congenital @entity299 successfully corrected through arterial switch operation (ASO). Although this technique had significant impact in improving survival, little is known about the functional capacity of the operated @entity1 long-term after surgery. OBJECTIVE: The aim of this study was to compare the functional capacity of @entity1 with TGA long-term after ASO with that of healthy @entity1 . DESIGN: Retrospective study. @entity1 : All @entity1 that performed cardiopulmonary exercise test (CPET) were included in the study. As a control group, healthy @entity1 in evaluation for physical activity that performed CPET during the same period were also enrolled. RESULTS: Thirty-one TGA @entity1 (19 male) were compared with 29 age-matched controls (21 male). Maximum @entity26 consumption was higher in the control group (45.47        8.05 vs. 40.52        7.19, P   =   .017), although within normal limits in both groups (above 90% of predicted value). The heart rate behavior during exercise was different in both groups, with a mean chronotropic index significantly lower in the TGA group (63%        14 vs. 81%        12, P   <   .001). CONCLUSIONS: Our results showed that exercise capacity long-term after ASO in TGA is well preserved although lower than in healthy @entity1 what might be explained by the presence of chronotropic incompetence in the TGA group.
