title: Long-term results of balloon-occluded retrograde transvenous obliteration for the treatment of gastric varices and hepatic encephalopathy.
abstract: OBJECTIVE
  To evaluate the long-term results of balloon-occluded retrograde transvenous obliteration (B-RTO) for the treatment of gastric varices (GV) and hepatic encephalopathy.
  
  
  METHODS
  A total of 43 patients who had undergone B-RTO were evaluated, 32 with GV, two with hepatic encephalopathy, and nine with both. All but one had been consecutively followed up with gastrointestinal endoscopy for more than 1 year (3-60 months; mean, 30.44 months). Collateral veins of gastric varices were graded using balloon-occluded retrograde left adrenal venography. The relation of both worsening of esophageal varices (EV) and improved Child-Pugh score after B-RTO to the grades of collateral vein development was analyzed. The relapse-free survival and the prognostic factors for survival after B-RTO were also assessed.
  
  
  RESULTS
  GV disappeared or decreased markedly in size, and hepatic encephalopathy was completely cured in all patients. Improvement in Child-Pugh score was observed in 21 patient (50.0%) 6 months after B-RTO, but in only 11 patients (25.6%) 1 year after B-RTO. Worsening of EV was seen in eight patients and was related to a worsened grade of collateral veins. Cumulative relapse-free survival rate was 90.8% at 1 year and 87.4% at 3 years after B-RTO. The most significant prognostic factor was Child-Pugh classification (relative risk: 4.16)
  
  
  CONCLUSIONS
  B-RTO is a safe and effective treatment for patients with GV and hepatic encephalopathy. The most important prognostic factors are the extent of Child-Pugh classification.
authors: Department of Radiology, Kobe University School of Medicine, Japan. deprad@kobe-u.ac.jp
authors: T
authors: T
authors: Fukuda
authors: S
authors: S
authors: Hirota
authors: K
authors: K
authors: Sugimura
mesh_terms: D021721:Balloon Occlusion; D003097:Collateral Circulation; D018572:Disease-Free Survival; D004621:Embolization, Therapeutic; D004932:Esophageal and Gastric Varices / Q000401:mortality / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006501:Hepatic Encephalopathy / Q000628:therapy*; D006801:Humans; D006975:Hypertension, Portal / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013997:Time Factors; D016896:Treatment Outcome