Table 2.
Baseline Characteristics of the Patients before Intraductal-Radiofrequency Ablation
| Characteristic | Value (n=29) |
|---|---|
| Age, yr | 62 (50–71) |
| Sex | |
| Male | 23 (79) |
| Female | 6 (21) |
| Familial adenomatous polyposis | 5 (17) |
| Duct involvement | |
| Common bile duct | 14 (48) |
| Pancreatic duct | 1 (3) |
| Common bile duct+pancreatic duct | 14 (48) |
| Pathology on specimen of ESP | |
| TA-LGD | 17 (59) |
| TA-HGD | 3 (10) |
| TV-LGD | 4 (14) |
| TV-HGD | 5 (17) |
| Longest diameter of adenoma, mm | 14 (10–19) |
| Margin involvement on specimen of ESP, deep margin/latera margin | |
| Negative/negative | 16 (55) |
| Positive/negative | 6 (21) |
| Negative/positive | 2 (7) |
| Positive/positive | 1 (3) |
| Indeterminate* | 4 (14) |
| Detection of intraductal lesion | |
| Same session of ESP | 5 (17) |
| Remnant lesion after ESP | 14 (48) |
| Recurrent lesion after ESP | 10 (34) |
| Follow-up duration, day | 776 (470–984) |
Data are presented as median (interquartile range) or number (%).
ESP, endoscopic snare papillectomy; TA, tubular adenoma; TV, tubulovillous adenoma; LGD, low-grade dysplasia; HGD, high-grade dysplasia.
*Margin involvement could not be evaluated due to severe squeezing artifacts and cauterization artifacts of the resected specimens.