title: Percutaneous access via the recanalized paraumbilical vein for varix embolization in seven patients.
abstract: OBJECTIVE
  To evaluate the feasibility of percutaneous access via the recanalized paraumbilical vein for varix embolization.
  
  
  METHODS
  Between July 2008 and Jan 2014, percutaneous access via the recanalized paraumbilical vein for varix embolization was attempted in seven patients with variceal bleeding. Paraumbilical vein puncture was performed under ultrasonographic guidance, followed by introduction of a 5-Fr sheath. We retrospectively evaluated the technical feasibility, procedure-related complications, and clinical outcomes of each patient.
  
  
  RESULTS
  Recanalized paraumbilical vein catheterization was performed successfully in all patients. Gastroesophageal varix embolization was performed in six patients, and umbilical varix embolization was performed in one patient. Embolic materials used are N-butyl cyanoacrylate (n = 6) and coil with N-butyl cyanoacrylate (n = 1). There were no procedure-related complications. One patient underwent repeated variceal embolization 6 hours after initial procedure via recanalized paraumbilical vein, due to rebleeding from gastric varix.
  
  
  CONCLUSIONS
  Percutaneous access via the paraumbilical vein for varix embolization is a simple alternative in patients with portal hypertension.
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Seoul 110-744, Korea.
authors.forename: Yeon Jin
authors.initials: YJ
authors.lastname: Cho
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Seoul 110-744, Korea.
authors.forename: Hyo-Cheol
authors.initials: HC
authors.lastname: Kim
authors.affiliation: Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu 700-712, Korea.
authors.forename: Young Whan
authors.initials: YW
authors.lastname: Kim
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Seoul 110-744, Korea.
authors.forename: Saebeom
authors.initials: S
authors.lastname: Hur
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Seoul 110-744, Korea.
authors.forename: Hwan Jun
authors.initials: HJ
authors.lastname: Jae
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Seoul 110-744, Korea.
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Chung
mesh_terms: D000328:Adult; D002648:Child; D004621:Embolization, Therapeutic; D004659:Enbucrilate / Q000627:therapeutic use; D004932:Esophageal and Gastric Varices / Q000000981:diagnostic imaging / Q000628:therapy*; D005260:Female; D006801:Humans; D020300:Intracranial Hemorrhages / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014463:Ultrasonography; D014471:Umbilical Veins / Q000000981:diagnostic imaging / Q000601:surgery
chemical_list: D004659:Enbucrilate
keywords: Embolization; Paraumbilical vein; Varix