Clinical Study
Covered Metal Stenting for Malignant Lower Biliary Stricture with Pancreatic Duct Obstruction: Is Endoscopic Sphincterotomy Needed?
Table 1
Patient characteristics.
| | | EST group () | Non-EST group () | P value |
| | Age (mean ± SD) | 72 ± 11 | 73 ± 9 | 0.589 | | Sex (male/female) | 21/17 | 19/22 | 0.428 | | Pancreatic cancer | 37 | 36 | 0.239 | | Ampullary carcinoma | 0 | 4 | 0.144 | | Gallbladder cancer | 1 | 0 | 0.969 | | Metastatic pancreatic cancer | 0 | 1 | 0.969 | | Incision range of EST | | | | | Small | 20 | | | | Medium | 18 | | | | Large | 0 | | | | Covered self-expandable metal stent | | | | | Fully covered type | 9 | 13 | 0.427 | | Partially covered type | 29 | 28 | | Stent length
(cm, mean ± SD) | 6.0 ± 1.0 | 5.8 ± 1.0 | 0.380 | Procedure time
(min, mean ± SD) | 34 ± 16 | 27 ± 12 | 0.032 | Follow-up period
(day, mean ± SD) | 216 ± 224 | 157 ± 183 | 0.202 |
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EST: endoscopic sphincterotomy.
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