Table 1. Characteristics of all patients and procedures.
| Variable | Total (N = 1157) |
|---|---|
| Age (years), mean±SD | 73.6±10.8 |
| Female sex, % | 490, 42 |
| Native papilla, % | 550, 48 |
| PEP*, % | 39, 3.4 |
| Disease site | |
| CBDS†, % | 579, 50 |
| Distal MBO‡, % | 224, 19 |
| Proximal MBO, % | 240, 21 |
| NS1§, % | 171, 15 |
| Performed by an HVE||, % | 610, 53 |
| Procedure time (min), median [IQR] | 28, [17–43] |
| Fluoroscopy time (min), median [IQR] | 10, [6–17] |
| Radiation dose (mGy), median [IQR] | 167, [90–307] |
| Dose Area Product (Gycm2), median [IQR] | 18.1, [10.2–31.3] |
| Radiation dose rate (mGy/min), median [IQR] | 17, [12–21] |
* PEP: Post-endoscopic retrograde cholangiopancreatography pancreatitis
† CBDS: Common bile duct stones
‡ MBO: Malignant biliary obstruction
§ NS1: New Stage 1 (a novel processing engine of the ‘EXAVISTA’ fluoroscope unit)
|| HVE: High-volume endoscopist