title: Gastric outlet obstruction caused by benign anastomotic stricture: treatment by fluoroscopically guided balloon dilation.
abstract: OBJECTIVE
  To evaluate the clinical efficacy and safety of fluoroscopically guided balloon dilation of gastric outlet obstruction caused by benign anastomotic stricture.
  
  
  METHODS
  Fluoroscopically guided balloon dilation was performed on 17 patients with gastric outlet obstruction caused by benign anastomotic stricture. Fourteen patients underwent surgery for malignant disease and three patients for complication of benign gastric ulcer. The sites of anastomotic stricture were gastrojejunal (n = 12) or gastroduodenal (n = 5). An upper gastrointestinal (UGI) series was performed just following and 1 month after balloon dilation to evaluate both the clinical success of the procedure and any complications. A dietary intake was evaluated by using the score for patients with malignant dysphagia and the pre- and postballoon dilation scores were analyzed with the Wilcoxon signed rank test.
  
  
  RESULTS
  In all patients, fluoroscopically guided balloon dilation was performed in one (n = 15) or two (n = 2) sessions and was technically and clinically successful (100%). The diameters of the balloon catheters used were 15 mm (n = 4), 20 mm (n = 14), and 25 mm (n = 1 mm; mean, 19.5 mm) in a total of 19 sessions. All patients had significant improvement of their levels of dietary intake (P < .001). Two of the 17 patients required the second procedure due to recurrent symptom nine and 15 months, respectively, after initial balloon dilation. Overall, 16 patients (94%) showed good results and no recurrence during a mean follow-up period of 13.5 months (range, 5-39 months). There were no major complications associated with balloon dilation.
  
  
  CONCLUSIONS
  Fluoroscopically guided balloon dilation seems to be effective and safe for patients with gastric outlet obstruction caused by benign anastomotic stricture. Achieving a luminal diameter of 20 mm seems to be necessary to prevent recurrence of symptoms.
authors.affiliation: Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Jin Hyoung
authors.initials: JH
authors.lastname: Kim
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Shin
authors.forename: Jae-Ik
authors.initials: JI
authors.lastname: Bae
authors.forename: Zhen-Hai
authors.initials: ZH
authors.lastname: Di
authors.forename: Jin-Oh
authors.initials: JO
authors.lastname: Lim
authors.forename: Tae-Hyung
authors.initials: TH
authors.lastname: Kim
authors.forename: Gi Young
authors.initials: GY
authors.lastname: Ko
authors.forename: Hyun-Ki
authors.initials: HK
authors.lastname: Yoon
authors.forename: Kyu-Bo
authors.initials: KB
authors.lastname: Sung
authors.forename: Ho-Young
authors.initials: HY
authors.lastname: Song
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical / Q000009:adverse effects*; D002404:Catheterization / Q000379:methods*; D003251:Constriction, Pathologic; D005260:Female; D005471:Fluoroscopy; D017219:Gastric Outlet Obstruction / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D005767:Gastrointestinal Diseases / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D015641:Radiography, Interventional; D018709:Statistics, Nonparametric