Intraoperative stent placement for the treatment of acute portal vein complications in pediatric living donor liver transplantation.

Abstract

Pediatric living donor liver transplantation (LDLT) in low weight recipients remains one of the most complex surgical procedures, with portal vein (PV) complications occurring in up to 19% of cases. When decreased PV flow is diagnosed intra- or perioperatively, intraoperative stent placement is a good substitute for surgical adjustment. Still, at the present moment, little is known about the technical feasibility, safety, efficacy, and long-term outcome of intraoperative stenting in LDLT. Between 2006 and 2017, seven pediatric recipients underwent PV stent placement during the transplant or in the immediate post-operative setting. Preoperative, operative, and post-operative parameters were documented retrospectively. In total, nine stents were placed in seven patients. Procedures were technically successful in all patients. During the mean imaging follow-up period of 1313days, none of the patients showed PV abnormality and PV stent remained patent throughout the post-transplant course. There were no deaths or graft loses during the follow-up period. Intraoperative stenting through the inferior mesenteric vein approach offers both a high feasibility and satisfactory results, with the potential for excellent long-term primary patency despite continued growth in children.