Performance data
| ERCP difficulty | Intent | Papilla (n) | Success (%) | Partial success* (%) | Failure (%) |
|---|---|---|---|---|---|
| All | CBD cannulation | All (1317) | 94.1 (84.2–97.2) | 0.6 (0–1.8) | 5.6 (2.3–15.5) |
| Virgin (602) | 87.0 (79.2–95.5) | 1.4 (0–4.0) | 10.7 (3.2–20.2) | ||
| Sphincterotomy (713) | 98.4 (90.5–100) | 0 | 1.6 (0–9.5) | ||
| Previous failure (266) | 86.7 (65.4–96.2) | 0 (0–3.4) | 13.3 (3.2–34.6) | ||
| No previous failure (733) | 96.2 (89.8–99.2) | 0 (0–1.0) | 3.6 (0.8–10.2) | ||
| Sphincterotomy | n=377 | 100 (98.2–100) | 0 | 0 (0–1.8) | |
| Stenting | n=808 | 97.8 (90.2–98.5) | 1.0 (0–4.6) | 2.1 (0–5.2) | |
| Stone extraction | n=296 | 86.8 (74.1–89.6) | 6.6 (0–14.8) | 8.3 (6.3–11.1) | |
| 1 | CBD cannulation | n=892 | 91.9 (85.0–96.0) | 0.7 (0–1.8) | 7.0 (3.2–14.7) |
| Sphincterotomy | n=254 | 100 | 0 | 0 | |
| Stenting | n=498 | 97.4 (91.2–100) | 0 (0–5.4) | 2.6 (0–4.9) | |
| Stone extraction | n=201 | 91.3 (83.9–100) | 0 (0–8.9) | 5.7 (0–13.3) | |
| 2 | CBD cannulation | n=229 | 100 (90.0–100) | 0 (0–3.2) | 0 (0–10.0) |
| Sphincterotomy | n=46 | 100 | 0 | 0 | |
| Stenting | n=163 | 97.0 (90.0–100) | 0 (0–4.8) | 0 (0–10.0) | |
| Stone extraction | n=53 | 75.0 (50.0–100) | 16.7 (0–37.5) | 0 (0–13.3) | |
| 3 | CBD cannulation | n=196 | 85.7 (62.5–96.7) | 0 (0–0.8) | 14.3 (2.5–37.5) |
| PD cannulation | n=266 | 85.7 (65.7–91.7) | 0 (0–2.7) | 14.3 (8.1–34.3) | |
| Spincterotomy | n=76 | 100 (83.3–100) | 0 | 0 (0–16.7) | |
| Stenting | n=147 | 95.7 (81.3–100) | 0 (0–4.5) | 1.3 (0–18.8) | |
| Stone extraction | n=42 | 75.0 (50.0–100) | 12.5 (0–25.0) | 4.5 (0–25.0) |
*Partial success regarding cannulation was defined as passage of contrast fluid or successful cannulation with a guidewire, but cannulation with the catheter was not achieved.
CBD, common bile duct; ERCP, endoscopic retrograde cholangiopancreatography; PD, pancreatic duct.