Short-term cardiopulmonary efficiency improvement after transcatheter baffle leak closure in a Mustard-operated patient

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Mustard operation, a surgical treatment for transposition of great arteries, can be complicated by postprocedural atrial or caval baffle leaks,1 which lead to about 60% of late reoperations.2 Transcatheter procedures for baffle leakage closure have been anecdotally reported and shown to be both well tolerated and effective;3,4 however, no data have been reported to date about the short-term effects of percutaneous device baffle leak closure on exercise capacity. Cardiopulmonary exercise testing (CPET) is currently considered the gold standard procedure for exercise capacity and cardiopulmonary efficiency assessment in cardiac patients.5 We report CPET data before and after a transcatheter baffle leakage closure procedure in a previously Mustard-operated patient.

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