Aortico-right ventricular tunnel (ARVT) was successfully corrected in a 32-year-old patient. The diagnosis was preoperatively suspected on the basis of Doppler echocardiography and it was confirmed by a three-dimensional computed tomographic scan. The ARVT originated independently above the right coronary sinus. Surgical closure with 5-0 polypropylene in the middle of the tunnel under modest hypothermia was successfully performed. Follow-up was found to be satisfactory 3 months later.
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