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  • Title: Impact of cholangitis on survival of patients with malignant biliary obstruction treated with percutaneous transhepatic biliary drainage.
    Author: Niemelä J, Kallio R, Ohtonen P, Saarnio J, Syrjälä H.
    Journal: BMC Gastroenterol; 2023 Mar 27; 23(1):91. PubMed ID: 36973653.
    Abstract:
    PURPOSE: To evaluate the impact of cholangitis on survival of patients with gastrointestinal cancer and malignant biliary obstruction treated with percutaneous transhepatic biliary drainage (PTBD). METHODS: A retrospective registry study was performed at a tertiary center from 2000 to 2016 in Northern Finland. RESULTS: The study included 588 patients, 258 (43.9%) patients with pancreatic cancer, 222 (37.7%) with biliary tract cancer, and 108 (18.4%) with metastasis from gastrointestinal cancers. Patient mean age was 70 years, range 26 - 93 years. There were 288 [49.0%] women. The 30-day mortality rate was 30.8% for 156 patients with cholangitis before PTBD, 19.5% for 215 patients with cholangitis after PTBD and 25.8% for 217 patients without cholangitis (P = 0.039). The median survival was 1.8 months for patients with cholangitis before PTBD, 3.0 months for patients with cholangitis after PTBD, and 3.2 months for patients without cholangitis (P = 0.002). The hazard ratio (HR) for 1-year mortality for patients with cholangitis before PTBD was 1.3 (95% CI 1.06 - 1.67, P = 0.015) compared to patients with cholangitis after PTBD. After successful PTBD, 54 out of 291 patients received chemotherapy; the median survival was 5.2 months with cholangitis before PTBD, 9.4 months with cholangitis after PTBD and 15.3 months without cholangitis. CONCLUSION: In gastrointestinal cancers with malignant biliary obstruction, survival is poorer if cholangitis occurs before PTBD compared to cholangitis after PTBD. An oncologist's consultation is essential for assessing the possibility of chemotherapy in successfully treated PTBD patients, because of the notable survival benefit.
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