title: Efficacy and Clinical Outcomes of Transcatheter Arterial Embolization for Gastrointestinal Bleeding from Gastrointestinal Stromal Tumor.
abstract: OBJECTIVE
  To evaluate the efficacy and clinical outcomes of transcatheter arterial embolization (TAE) for gastrointestinal (GI) bleeding from gastrointestinal stromal tumor (GIST).
  
  
  METHODS
  TAE was performed in 20 referred patients (male:female = 13:7; median age, 56.3 y) for GI bleeding from GISTs. The locations of GISTs were assessed using contrast-enhanced computed tomography (CT) and catheter angiography. The technical and clinical success of TAE and clinical outcomes including procedure-related complications, recurrent bleeding, 30-day and overall mortality, and cumulative survival were evaluated.
  
  
  RESULTS
  The sites of GIST-related bleeding or tumor staining were the jejunum (n = 9), stomach (n = 5), ileum (n = 3), duodenum (n = 2), and jejunum and colon (n = 1). Angiography showed bleeding from GIST in 5 patients, and tumor staining was noted in only 15 patients. TAE was performed for patients with and without contrast medium extravasation on angiography. Technical and clinical success rates of TAE were 95% (19 of 20 patients) and 90% (18 of 20 patients), respectively. Recurrent bleeding was noted in 1 patient. There were no procedure-related complications. In 15 patients, surgical resection of the tumors was performed after TAE. The 30-day and overall mortality rates were 10% (2 of 20 patients) and 30% (6 of 20 patients), respectively.
  
  
  CONCLUSIONS
  TAE is a safe and effective method for controlling GI bleeding from the GIST.
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Olymphic-ro 43 gil 88, Songpa-Gu, Seoul 138-736, Korea.
authors.forename: Hyun Jung
authors.initials: HJ
authors.lastname: Koo
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Olymphic-ro 43 gil 88, Songpa-Gu, Seoul 138-736, Korea. Electronic address: jhshin@amc.seoul.kr.
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Shin
authors.affiliation: Department of Diagnostic Radiology, University of Texas MD Anderson Cancer Center, Houston, Texas.
authors.forename: Sooyoung
authors.initials: S
authors.lastname: Shin
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Olymphic-ro 43 gil 88, Songpa-Gu, Seoul 138-736, Korea.
authors.forename: Hyun-Ki
authors.initials: HK
authors.lastname: Yoon
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Olymphic-ro 43 gil 88, Songpa-Gu, Seoul 138-736, Korea.
authors.forename: Gi-Young
authors.initials: GY
authors.lastname: Ko
authors.affiliation: Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Olymphic-ro 43 gil 88, Songpa-Gu, Seoul 138-736, Korea.
authors.forename: Dong Il
authors.initials: DI
authors.lastname: Gwon
mesh_terms: D004621:Embolization, Therapeutic; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy*; D005770:Gastrointestinal Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy*; D046152:Gastrointestinal Stromal Tumors / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D015996:Survival Rate; D016896:Treatment Outcome