title: Injuries of adjacent organs by the expanded polytetrafluoroethylene grafts in the venoplasty of middle hepatic veins in living-donor liver transplantation: computed tomographic findings and possible risk factors.
abstract: OBJECTIVE
  The objective of the study was to analyze computed tomography (CT) appearance and clinical features of adjacent-organ injuries related to expanded polytetrafluoroethylene (ePTFE) grafts after living-donor liver transplantation (LDLT).
  
  
  METHODS
  We evaluated follow-up CT images of 204 patients who underwent venoplasty with ePTFE during LDLT and encountered 4 patients (1.96%) with adjacent-organ injuries related to ePTFE. Clinical imaging records were reviewed in terms of imaging findings and possible risk factors.
  
  
  RESULTS
  In 3 patients, ePTFE graft perforated gastric antrum or duodenal bulb; in another patient, the common bile duct was injured. The mean interval between transplantation and identification of injury was 30 months. In patients with adjacent-organ injuries, biliary or perihepatic interventional treatments, adhesion of bowel and early occlusion of ePTFE grafts were commonly observed.
  
  
  CONCLUSIONS
  Adjacent-organ injuries by ePTFE graft after LDLT were rare but present. Interventional procedures, adhesion of the bowel wall and early occlusion of the grafts were possible risk factors.
authors.affiliation: Department of Radiology, Research Institute and Hospital, National Cancer Center, Goyang-si, Republic of Korea.
authors.forename: Min Ju
authors.initials: MJ
authors.lastname: Kim
authors.forename: Hyun Beom
authors.initials: HB
authors.lastname: Kim
authors.forename: Joon Koo
authors.initials: JK
authors.lastname: Han
authors.forename: Kyung-Suk
authors.initials: KS
authors.lastname: Suh
authors.forename: Seong Hoon
authors.initials: SH
authors.lastname: Kim
authors.forename: Jee Hyun
authors.initials: JH
authors.lastname: Baek
authors.forename: Young Ho
authors.initials: YH
authors.lastname: So
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Byun
authors.forename: Dong Goo
authors.initials: DG
authors.lastname: Kim
authors.forename: Joon-Il
authors.initials: JI
authors.lastname: Choi
mesh_terms: D000368:Aged; D001807:Blood Vessel Prosthesis / Q000009:adverse effects*; D003135:Common Bile Duct / Q000000981:diagnostic imaging / Q000293:injuries*; D004386:Duodenum / Q000000981:diagnostic imaging / Q000293:injuries*; D005500:Follow-Up Studies; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging; D006503:Hepatic Veins / Q000601:surgery*; D006801:Humans; D016031:Liver Transplantation; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene / Q000009:adverse effects*; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D012307:Risk Factors; D013270:Stomach / Q000000981:diagnostic imaging / Q000293:injuries*; D000267:Tissue Adhesions / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D011138:Polytetrafluoroethylene