Abstract 20
| Group analysed | Successful cannulation % (n/N) | Univariate p value* |
|---|---|---|
| *Chi square/Fisher’s exact. | ||
| †Common bile duct and pancreatic duct. | ||
| First ever ERCP (all) | 83.6% (2687/3214) | – |
| CBD+PD intended† | 71.6% (174/243) | p<0.001 |
| Prev Billroth | 43.3% (13/30) | p<0.001 |
| Prev Whipples | 20% (2/10) | p<0.001 |
| Accessory duct attempted | 0% (0/3) | p = 0.04 |