Abstract

To evaluate percutaneous transhepatic biliary drainage (PTBD) safety and efficacy in patients with perihilar cholangiocarcinoma (PCCA). This retrospective observational study included patients with PCCA and obstructive cholestasis referred for a PTBD in our institution between 2010 and 2020. Technical and clinical success rates and major complication and mortality rates one month after PTBD were used as main variables. Patients were divided and analyzed into two groups: > 30 and < 30 Comprehensive Complication Index (CCI). We also evaluated post-surgical outcomes in patients undergoing surgery. Out of 223 patients, 57 were included. Technical success rate was 87.7%. Clinical success at 1week was 83.6%, before surgery 68.2%, 80.0% at 2weeks and 86.7% at 4weeks. Mean total bilirubin (TBIL) values were 15.1mg/dL (baseline), 8.1mg/dL one week after PTBD), 6.1mg/dL (2weeks) and 2.1mg/dL (4weeks). Major complication rate was 21.1%. Three patients died (5.3%). Risk factors for major complications after the statistical analysis were: Bismuth classification (p = 0.01), tumor resectability (p = 0.04), PTBD clinical success (p = 0.04), TBIL 2weeks after PTBD (p = 0.04), a second PTBD (p = 0.01), total PTBDs (p = 0.01) and duration of drainage (p = 0.03). Major postoperative complication rate in patients who underwent surgery was 59.3%, with a median CCI of 26.2. PTBD is safe and effective in the management of biliary obstruction caused by PCCA. Bismuth classification, locally advanced tumors, and failure to achieve clinical success in the first PTBD are factors related to major complications. Our sample reported a high major postoperative complication rate, although with an acceptable median CCI.

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