fig1

Figure 1. A 6-year-old boy with biliary atresia underwent left-lobe LDLT, HVOO was diagnosed 5.1 years after LDLT, and hepatic venography was performed. (A) preoperative venogram showing an anastomotic stricture. As to the manometry finding, the pressure gradient, HV-RA was 12 mmHg; (B) fluoroscopic view during balloon dilatation showing the notch of the balloon at the stenosis; (C) preoperative venogram after the balloon dilatation showing improvement of the stenosis. The pressure gradient improved; HV-RA was 2 mmHg. LDLT: living donor liver transplantation; HVOO: hepatic venous outflow obstruction; HV: hepatic vein; RA: right atrium