Table 1.
Baseline Characteristics
| Characteristic | PC-SEMS (n=71) | Uncovered SEMS (n=63) | p-value |
|---|---|---|---|
| Sex, male/female | 38/33 | 35/28 | 0.815 |
| Age, yr | 69.80±11.69 | 70.36±11.96 | 0.142 |
| Underlying malignancy | |||
| Pancreatic cancer | 39 | 31 | 0.512 |
| Bile duct cancer | 18 | 21 | 0.539 |
| Ampulla of Vater cancer | 3 | 6 | 0.224 |
| Gall bladder cancer | 2 | 1 | 0.235 |
| Metastatic cancer | 9 | 4 | 0.212 |
| Initial bilirubin, mg/dL | 14.41±9.42 | 12.8±6.28 | 0.266 |
| Length of stricture, mm | 33.77±6.03 | 32.79±6.34 | 0.395 |
| Biliary drainage prior to deployment of SEMS | 28 (39.4) | 32 (50.7) | 0.072 |
| ENBD | 15 | 7 | |
| ERBD | 7 | 20 | |
| PTBD | 6 | 5 | |
| Technical success | 0.100 | ||
| First attempt | 68/71 (95.7) | 61/63 (96.8) | |
| Second attempt | 3/3 (100.0) | 2/2 (100.0) | |
| Final technical success | 71/71 (100.0) | 63/63 (100.0) | |
| Clinical success | 69/71 (97.1) | 61/63 (96.8) | 0.563 |
| Chemotherapy or radiotherapy | 35 (49.3) | 29 (46.0) | 0.706 |
Data are presented as mean±SD or number (%).
PC-SEMS, partially covered self-expandable metal stent; ENBD, endoscopic nasobiliary drainage; ERBD, endoscopic retrograde biliary drainage; PTBD, percutaneous transhepatic biliary drainage.