At 32 weeks of gestation, a male fetus with congenitally corrected transposition of the great arteries developed hydrops fetalis caused by a combination of mitral valve regurgitation and tricuspid valve regurgitation (TR). We performed a pulmonary artery banding (PAB) at 108 days old for gradually progressing TR, after confirming that a balloon dilatation test in the main pulmonary artery reduced TR. As the patient grew, the PAB became tighter and systolic blood pressure in the morphological left ventricle increased. At present, the patient is waiting for a double switch operation.
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