Table 2.
Clinical outcomes of the study patients
| Contrast | Air | CO2 | P-values | |
|---|---|---|---|---|
| Technical success | 22/22 (100%) | 18/18 (100%) | 30/30 (100%) | > 0.99 |
| Clinical success | 16/22 (72.7%) | 13/18 (72.2%) | 23/30 (76.6%) | 0.472 |
| Number of stents placed | 0.697 | |||
| One stent | 7 (31.8%) | 3 (16.7%) | 5 (16.7%) | |
| Two stents | 10 (45.5%) | 11 (61.1%) | 19 (63.3%) | |
| Nasobiliary drain | 5 (22.7%) | 4 (22.2%) | 6 (20%) | |
| Post-ERCP complications | 14 (63.6%)*# | 5 (27.8%) | 8 (26.6%) | 0.018 |
| Cholangitis | 11 (50%)*# | 3 (16.7%) | 3 (10%) | 0.004 |
| Pancreatitis | 2 (9.1%) | 2 (11.1%) | 4 (13.3%) | > 0.99 |
| Bleeding | 1 (4.5%) | 0 | 1 (3.3%) | > 0.99 |
| WBC 2 days post ERCP | 8.08 ± 2.89 | 9.48 ± 3.79 | 7.81 ± 4.17 | 0.284 |
| Serum bilirubin at one-week post-ERCP (median, [Q1, Q3]) | 160.39 (99.13, 221.35) | 141.98 (86,26, 190.76) | 147.55 (81.70, 209.91) | 0.817 |
| Mean hospital stay duration at post-ERCP (median, [Q1, Q3]) | 15.63 (7.89, 19.37) | 8.31 (5.08, 11.49) | 9.09 (4.37, 12.54) | 0.039 |
| ERCP re-intervention during follow-up | 1 (4.5%) | 1 (5.6%) | 3 (10%) | 0.854 |
| 30-day mortality | 4 (18.2%) | 2 (11.1%) | 1 (3.3%) | 0.238 |
*contrast vs. air, P < 0.05
#contrast vs. CO2, P < 0.05