title: [Complications and clinical outcomes of microwave ablation for liver metastatic cholangiocarcinoma after bilioenteric anastomosis].
abstract: OBJECTIVE
  To explore the complications and clinical outcome of liver metastatic cholangiocarcinoma after microwave ablation (MWA) in patients with a history of pancreatoduodenectomy or liver resection with bilioenteric anastomosis.
  
  
  METHODS
  Retrospective study was made on 10 lesions of intra-hepatic metastatic cholangiocarcinoma undergoing MWA (range: 1.5 - 3.6 cm, mean: 3.3 ± 1.3 cm) in 6 patients (5 males and 1 female) from February 2008 to October 2011. All had a history of surgical resection for primary neoplasm and bilioenteric anastomosis. Four cases had intrahepatic biliary dilatation pneumatosis.
  
  
  RESULTS
  All lesions were completely ablated according to the results of contrast-enhanced ultrasound (CEUS) or contrast-enhanced computed tomography/magnetic resonance imaging (CT/MRI) at Month 1 post-MWA. Liver abscess and fistula occurred in 5 ablation zones (5/10) of 4 patients. Three cases were satisfactorily cured with antibiotic dosing, catheter drainage and supportive care. One case died 13 days after MWA. The overall 1, 2, 3-year survival rates of were 64.8%, 21.6% and 21.0% respectively (median: 15.7 months).
  
  
  CONCLUSIONS
  A high technical success rate of MWA is obtained in the treatment of intrahepatic metastatic cholangiocarcinoma with bilioenteric anastomosis. However, the incidence of abscess formation remains high due to a coexistence of multiple risk factors.
authors: Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing 100853, China.
authors: Ming-an
authors: MA
authors: Yu
authors: Ping
authors: P
authors: Liang
authors: Xiao-ling
authors: XL
authors: Yu
authors: Zhi-gang
authors: ZG
authors: Cheng
authors: Zhi-yu
authors: ZY
authors: Han
authors: Fang-yi
authors: FY
authors: Liu
authors: Jie
authors: J
authors: Yu
mesh_terms: D000714:Anastomosis, Surgical; D017115:Catheter Ablation / Q000009:adverse effects* / Q000379:methods*; D018281:Cholangiocarcinoma / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008100:Liver Abscess / Q000209:etiology; D008113:Liver Neoplasms / Q000556:secondary / Q000601:surgery*; D008297:Male; D008872:Microwaves / Q000627:therapeutic use; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012189:Retrospective Studies