title: Transcatheter arterial chemoembolization of hepatocellular carcinoma with hepatic arteriovenous shunt after temporary balloon occlusion of hepatic vein.
abstract: OBJECTIVE
  Hepatocellular carcinoma with hepatic artery to hepatic vein (AV) shunt has increased risk of pulmonary complications during transcatheter arterial chemoembolization (TACE). The purpose of this study is to assess temporary balloon occlusion as a means of preventing pulmonary complications during TACE of hepatocellular carcinoma with AV shunt.
  
  
  METHODS
  Eleven hepatocellular carcinoma patients (M: F = 9:2; mean age, 48 years) with angiographically evident AV shunt underwent TACE with occlusion of the shunt-draining hepatic veins using temporary occlusion balloon catheters. All tumors were in the right lobe, and all AV shunts were between the right hepatic artery and right hepatic vein. The occlusion balloon was inserted via femoral (n = 6) or jugular (n = 5) venous access. The balloon diameter ranged from 8.5 to 11.5 mm and time of ballooning was 3 to 15 minutes (mean, 9.5 minutes). TACE was performed using emulsion of iodized oil and doxorubicin, followed by Gelfoam embolization. The balloon was deflated immediately after chemoembolization, and physical examination and chest radiography were performed. Follow-up computed tomography was performed within 2 weeks after TACE to evaluate the result and pulmonary complications.
  
  
  RESULTS
  The technical success rate was 100%. There was no symptom, sign, or radiographic evidence of pulmonary complication. Follow-up computed tomography revealed complete iodized oil uptake by the tumor in eight patients and incomplete uptake by the tumor in three patients. There was no iodized oil uptake in the lungs.
  
  
  CONCLUSIONS
  Temporary balloon occlusion of the hepatic vein in hepatocellular carcinoma with AV shunt allowed completion of TACE using conventional method while preventing pulmonary complications.
authors: Department of Diagnostic Radiology, Ajou University College of Medicine, Woncheon-dong, Paldal-gu, Suwon-si, Gyeonggi-do 442-721, Republic of Korea.
authors: Jong Hyeog
authors: JH
authors: Lee
authors: Je Hwan
authors: JH
authors: Won
authors: Sung Il
authors: SI
authors: Park
authors: Jong Yoon
authors: JY
authors: Won
authors: Do Yun
authors: DY
authors: Lee
authors: Byung-Chul
authors: BC
authors: Kang
mesh_terms: D001166:Arteriovenous Shunt, Surgical / Q000379:methods*; D021721:Balloon Occlusion / Q000379:methods*; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000628:therapy*; D002406:Catheterization, Peripheral / Q000379:methods*; D016461:Chemoembolization, Therapeutic / Q000379:methods*; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome