title: Interventional radiological treatment of perihepatic vascular stenosis or occlusion in pediatric patients after liver transplantation.
abstract: OBJECTIVE
  Evaluation of the efficacy and safety of percutaneous treatment of vascular stenoses and occlusions in pediatric liver transplant recipients.
  
  
  METHODS
  Fifteen children (mean age 8.3 years) underwent interventional procedures for 18 vascular complications after liver transplantation. Patients had stenoses or occlusions of portal veins (n = 8), hepatic veins (n = 3), inferior vena cava (IVC; n = 2) or hepatic arteries (n = 5). Technical and clinical success rates were evaluated.
  
  
  RESULTS
  Stent angioplasty was performed in seven cases (portal vein, hepatic artery and IVC), and sole balloon angioplasty was performed in eight cases. One child underwent thrombolysis (hepatic artery). Clinical and technical success was achieved in 14 of 18 cases of vascular stenoses or occlusions (mean follow-up 710 days).
  
  
  CONCLUSIONS
  Pediatric interventional radiology allows effective and safe treatment of vascular stenoses after pediatric liver transplantation (PLT). Individualized treatment with special concepts for each pediatric patient is necessary. The variety, the characteristics, and the individuality of interventional management of all kinds of possible vascular stenoses or occlusions after PLT are shown.
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany. wibke.uller@klinik.uni-regensburg.de.
authors.forename: Wibke
authors.initials: W
authors.lastname: Uller
authors.affiliation: KUNO University Children's Hospital Regensburg, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Birgit
authors.initials: B
authors.lastname: Knoppke
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Andreas G
authors.initials: AG
authors.lastname: Schreyer
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Heiss
authors.affiliation: Department of Surgery, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Schlitt
authors.affiliation: KUNO University Children's Hospital Regensburg, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Melter
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Stroszczynski
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.|Department of Radiology, Krankenhaus Barmherzige Brüder, Prüfeninger Straße 86, 93049, Regensburg, Germany.
authors.forename: Niels
authors.initials: N
authors.lastname: Zorger
authors.affiliation: Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.
authors.forename: Walter A
authors.initials: WA
authors.lastname: Wohlgemuth
mesh_terms: D000293:Adolescent; D017130:Angioplasty / Q000379:methods*; D000800:Angioplasty, Balloon / Q000379:methods; D002648:Child; D002675:Child, Preschool; D003251:Constriction, Pathologic; D005260:Female; D005500:Follow-Up Studies; D006499:Hepatic Artery / Q000000981:diagnostic imaging; D006503:Hepatic Veins / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008099:Liver / Q000601:surgery; D016031:Liver Transplantation; D008297:Male; D011169:Portal Vein / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000628:therapy*; D011859:Radiography; D015642:Radiology, Interventional / Q000379:methods*; D015607:Stents; D015912:Thrombolytic Therapy / Q000379:methods; D016896:Treatment Outcome; D014652:Vascular Diseases / Q000628:therapy*; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging