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Table 1 Summary of studies included in the meta-analysis a

From: Percutaneous transhepatic and endoscopic biliary drainage for malignant biliary tract obstruction: a meta-analysis

First author Year Study type Comparison Number of cases Malignancy causing biliary obstruction Age, yr Males,% Type of stent placed Prophylactic antibiotics Follow-up period
Saluja 2008 RCT PTBD vs. EBD 27 vs. 27 Carcinoma of the gallbladder 51 vs. 50 37% vs. 30% Plastic stent Cefoperazone + sulbactam 3 months
Piñol 2002 RCT PTBD vs. EBD 28 vs. 26 Primary carcinoma of the pancreas, gallbladder, or bile ducts, or to regional lymph node metastases 75 vs. 70 43% vs. 42% Metal stent Ciprofloxacin Median: 2.5 months
Speer 1987 RCT PTBD vs. EBD 36 vs. 39 Primary carcinoma of the pancreas, gallbladder, or bile ducts 73 vs. 72.5 NA Plastic stent NA NA
  1. aEBD, Endoscopic biliary drainage; NA, not available; PTBD, Percutaneous transhepatic biliary drainage; RCT, Randomized controlled trial.