Table 1.
Patient and procedural characteristics of 2641 patients who underwent ERCP.
| Variables | Total |
|---|---|
| Gender (n = 2640) [n (%)] | |
| Female | 1243 (47.1) |
| Male | 1397 (52.9) |
| Age (y, n = 2640) [median (IQR)] | 66.0 (52.0–76.7) |
| BMI (kg/m2, n = 2512) [median (IQR)] | 25.4 (22.6–28.8) |
| Native papilla (n = 2640) [n (%)] | |
| Yes | 1491 (56.5) |
| No | 1133 (42.9) |
| Other (e.g., hepaticojejunostomy) | 16 (0.6) |
| Previous EST (n = 2630) [n (%)] | |
| No | 1591 (60.5) |
| Biliary EST only | 774 (29.4) |
| Pancreatic EST only | 147 (5.6) |
| Biliary and pancreatic EST | 118 (4.5) |
| Anesthetic technique (n = 2632) [n (%)] | |
| Endoscopist-directed | 714 (27.1) |
| Anesthesiologist-directed | 1918 (72.9) |
| Indication (n = 3026) [n (%)] | |
| CBD stone | 1084 (35.8) |
| Biliary stricture | 818 (27.0) |
| PSC | 321 (10.6) |
| Post LCC | 116 (3.8) |
| Post LTx | 84 (2.8) |
| Chronic pancreatitis | 235 (7.8) |
| Acute pancreatitis | 89 (2.9) |
| Pseudocyst | 126 (4.2) |
| Other | 153 (5.1) |
| Total cannulation time (min, n = 756) [median (IQR)] | 1.08 (0.25–5.67) |
| Types of interventions (n = 5519) [n (%)] | |
| Biliary EST | 1387 (25.1) |
| CBD stone extraction | 1033 (18.7) |
| Biliary plastic stent placement, exchange, or removal | 800 (14.5) |
| ERC cytology | 691 (12.5) |
| Biliary dilatation | 407 (7.4) |
| Metal stent placement | 359 (6.5) |
| Pancreatic stent placement, exchange, or removal | 259 (4.7) |
| Pancreatic EST | 190 (3.4) |
| Pancreatic dilatation | 158 (2.9) |
| ERP cytology | 62 (1.1) |
| Pseudocystogastrostomy | 26 (0.5) |
| Prophylactic pancreatic stent | 29 (0.6) |
| Spyglass | 56 (1.0) |
| Double-balloon ERCP | 62 (1.1) |
| Total procedural time (min, n = 2555) [median (IQR)] | 22.0 (15.0–33.0) |
| Operator of fluoroscopy equipment (n = 2640) [n (%)] | |
| Endoscopist | 2195 (83.1) |
| Radiographer | 445 (16.9) |
ERCP, endoscopic retrograde cholangiopancreatography; BMI, body mass index; EST, endoscopic sphincterotomy; CBD, common bile duct; PSC, primary sclerosing cholangitis; LCC, laparoscopic cholecystectomy; LTx, liver transplantation; IQR, interquartile range; ERC, endoscopic retrograde cholangiography; and ERP, endoscopic retrograde pancreatography.