Table 3.
Procedure of Trefle® tissue acquisition and POCS-guided forceps biopsy for differentiating extrahepatic cholangiocarcinoma from benign biliary disease.
| Trefle® (n = 14) |
POCS (n = 20) |
p Value | |
|---|---|---|---|
| Procedure time, minutes | 92.0 (57–129) | 85.5 (34–170) | 0.766 *1 |
| EST or precut papillotomy (previous/with/without) | 1/3/10 | 5/15/0 | <0.001 *2 |
| Number of biopsy, times | 2 (1–6) | 3 (2–9) | 0.0498 *1 |
Values are presented as number or median (range). Abbreviations: POCS, peroral cholangioscopy; EST, endoscopic sphincterotomy. *1 p value: Mann–Whitney U test. *2 p value: Chi-square test.