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  • Title: Is ERCP-BD or EUS-BD the preferred decompression modality for malignant distal biliary obstruction? A meta-analysis of randomized controlled trials.
    Author: Li DF, Zhou CH, Wang LS, Yao J, Zou DW.
    Journal: Rev Esp Enferm Dig; 2019 Dec; 111(12):953-960. PubMed ID: 31729233.
    Abstract:
    BACKGROUND: endoscopic retrograde cholangiopancreatography (ERCP)-guided biliary drainage (ERCP-BD) with transpapillary stent placement is the standard palliative treatment for malignant distal biliary obstruction. Endoscopic ultrasound-guided biliary drainage (EUS-BD) has been evaluated for efficacy and safety as an alternative for failed ERCP. PURPOSE: we aimed to determine whether ERCP-BD or EUS-BD is the preferred treatment modality for decompressing malignant distal biliary obstruction. METHODS: we systematically searched for relevant published, prospective, and randomized trials comparing ERCP-BD with EUS-BD in decompressing malignant distal biliary obstruction in databases (i.e., PubMed and Cochrane). Technical success, treatment success, and procedure duration were primary outcome measurements; overall adverse events, post-ERCP pancreatitis (PEP), and stent reintervention rate were the secondary outcomes. RESULTS: three trials with 220 patients met the inclusion criteria. Technical success, treatment success, procedure duration, and overall adverse event rate were similar between ERCP-BD and EUS-BD. However, ERCP-BD had a significantly higher PEP rate than EUS-BD (9.2% vs. 0%), the difference being significant (risk ratio [RR] = 8.5; 95% confidence interval (CI): 1.03-69.91, p = 0.05). Similarly, ERCP-BD had a higher stent reintervention rate than EUS-BD (28.4% vs. 4.5%), although the difference was not significant (RR = 1.91; 95% CI: 0.94-3.88, p = 0.07). CONCLUSION: technical success, treatment success, procedure duration, and overall adverse event rate were comparable between ERCP-BD and EUS-BD in decompressing malignant distal biliary obstruction. Nevertheless, EUS-BD had a significantly lower rate of PEP and a lower tendency toward stent reintervention than ERCP-BD. Therefore, EUS-BD might be a suitable alternative to ERCP-BD when performed by experts.
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