Table 1.
Baseline characteristics of the study cohort.
| Repeat EUS FNB Group n = 34 |
Single EUS FNB Group n = 68 |
p Value | |
|---|---|---|---|
| Age at diagnosis (mean (SD)) | 68 (10.38) | 69 (10.14) | 0.759 |
| Gender | 0.723 | ||
| Female—n (%) | 13 (38) | 30 (44) | |
| Male—n (%) | 21 (62) | 38 (56) | |
| Tumor location | 0.496 | ||
| Head—n (%) | 22 (65) | 40 (59) | |
| Body—n (%) | 5 (15) | 10 (15) | |
| Tail—n (%) | 2 (6) | 11 (16) | |
| Uncinate process—n (%) | 5 (15) | 7 (10) | |
| Tumor size, in mm—mean ± SD | 25 ± 9 | 31 ± 13 | 0.010 |
| Presentation | |||
| Jaundice—n (%) | 10 (29) | 27 (41) | 0.295 |
| Abdominal pain—n (%) | 8 (23) | 12 (18) | 0.363 |
| Weight loss—n (%) | 3 (9) | 6 (9) | 0.712 |
| Pancreatitis—n (%) | 1 (3) | 6 (9) | 1.00 |
| Diabetes—n (%) | 1 (3) | 3 (5) | 0.467 |
| Abnormal liver tests—n (%) | 2 (6) | 0 (0,0) | 1.00 |
| Digestive obstruction—n (%) | 1 (3) | 1 (2) | 0.216 |
| Incidental finding on abdominal imaging—n (%) | 5 (15) | 10 (15) | 1.00 |
| Other—n (%) | 3 (9) | 1 (2) | 0.219 |
| Chronic pancreatitis—n (%) | 7 (21) | 9 (13) | 0.723 |
| FNB Needle * | |||
| 22 G Cook Procore—n (%) | 11 (32) | 6 (9) | 0.008 |
| 20 G Cook Procore—n (%) | 17 (50) | 49 (74) | 0.028 |
| 25 G Cook Procore—n (%) | 2 (6) | 2 (3) | 0.880 |
| 22 G Boston Acquire—n (%) | 4 (12) | 6 (9) | 0.944 |
| Other—n (%) | 0 (0.0) | 3 (5) | 0.520 |
*: for the patients of the repeat EUS FNB, only the first FNB needle is indicated. EUS: Endoscopic Ultrasound. FNB: Fine Needle Biopsy. G: Gauge.