Long-term outcome of endovascular intervention in XXXX following pediatric liver transplantation.

@entity1 @entity3181
The purpose of our study was to address the long-term outcome of angioplasty and stent placement for @entity3181 following pediatric liver transplantation. From October 1999 to December 2011, 20 stenotic lesions were confirmed to constitute @entity3181 in 18 pediatric @entity1 (13 @entity1 , 5 @entity1 ) among 152 pediatric @entity1 following liver transplantation and were managed with endovascular intervention. Stent placement was favored over additional angioplasty in @entity1 of preadolescent or adolescent age (>8 years old), after 1 or 2 sessions of balloon angioplasty. The primary patency and assisted primary patency were estimated using the Kaplan-Meier method. A total of 32 procedures (24 balloon angioplasties, 8 stent placements) were conducted. The technical success rate was 90.6% (29/32). Clinical success was achieved in 15 of 18 @entity1 (clinical success rate of 83.3%). Major complications did not occur in our study. Median follow-up was 91.5 months (interquartile range, 54.7-137.3 months) for the 18 @entity1 . The 1-year, 3-year, 5-year, and 10-year primary patencies of the 20 treated lesions were 63.5%, 57.8%, 57.8%, and 57.8%, respectively. The 1-year, 3-year, 5-year, and 10-year assisted-primary patencies of the lesions were 100%, 100%, 100%, and 100%, respectively. Of the 6 @entity1 of preadolescent or adolescent age, 5 @entity1 underwent stent placement procedures, and the stents were patent during the follow-up period of 57.3-162.5 months (median, 72.7 months). In conclusion, endovascular intervention is very effective in @entity3181 following pediatric liver transplantation. In addition, early stent placement in @entity1 of preadolescent or adolescent age can provide a safe and favorable long-term outcome.
