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

J Comput Assist Tomogr. 2011 Sep-Oct;35(5):544-8. doi: 10.1097/RCT.0b013e318227a68a.


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.

Publication types

  • Multicenter Study

MeSH terms

  • Aged
  • Blood Vessel Prosthesis / adverse effects*
  • Common Bile Duct / diagnostic imaging
  • Common Bile Duct / injuries*
  • Duodenum / diagnostic imaging
  • Duodenum / injuries*
  • Follow-Up Studies
  • Graft Occlusion, Vascular / diagnostic imaging
  • Hepatic Veins / surgery*
  • Humans
  • Liver Transplantation*
  • Living Donors
  • Male
  • Middle Aged
  • Polytetrafluoroethylene / adverse effects*
  • Postoperative Complications / diagnostic imaging*
  • Retrospective Studies
  • Risk Factors
  • Stomach / diagnostic imaging
  • Stomach / injuries*
  • Tissue Adhesions / diagnostic imaging
  • Tomography, X-Ray Computed / methods*


  • Polytetrafluoroethylene