Table 1.
Baseline Characteristics of Patients Who Underwent Suprapapillary or Transpapillary Self-Expandable Metal Stent Insertion
| Characteristic | Suprapapillary (n=51) | Transpapillary (n=229) | p-value |
|---|---|---|---|
| Male sex | 28 (54.9) | 122 (53.3) | 0.834 |
| Age, yr | 73.2±9.5 | 72.0±11.5 | 0.486 |
| Diagnosis | <0.001 | ||
| Biliary tract cancer | 40 (78.5) | 73 (31.9) | |
| Pancreas cancer | 9 (17.6) | 133 (58.1) | |
| Others | 2 (3.9) | 23 (10.0) | |
| Obstruction level of common bile duct | <0.001 | ||
| Proximal | 12 (23.5) | 22 (9.6) | |
| Middle | 26 (51.0) | 64 (27.9) | |
| Distal | 13 (25.5) | 143 (62.4) | |
| Cystic duct invasion | 11 (21.6) | 11 (4.8) | <0.001 |
| Stent length, cm | 6.04±0.72 | 6.41±0.99 | 0.012 |
| Stent type | 0.103 | ||
| Uncovered | 41 (80.4) | 160 (69.9) | |
| Covered | 8 (15.7) | 62 (27.1) | |
| Partially | 2 (3.9) | 7 (3.1) | |
| Clinical success | 49 (96.1) | 216 (95.6) | 0.874 |
| Pre-laboratory findings | |||
| Total bilirubin, mg/dL | 5.98±5.08 | 6.92±7.07 | 0.370 |
| Amylase, U/L | 183.5±742.4 | 103.3±211.2 | 0.175 |
| Lipase, U/L | 57.5±61.1 | 150.2±354.5 | 0.070 |
| 1 wk after laboratory findings | |||
| Total bilirubin, mg/dL | 3.18±3.09 | 2.60±2.98 | 0.246 |
| Amylase, U/L | 72.1±54.2 | 87.9±78.2 | 0.259 |
| Lipase, U/L | 69.8±118.9 | 112.5±175.6 | 0.166 |
Data are presented as number (%) or mean±SD.