Table 1.
Patient Characteristics.
| CHF group (n=15) |
SpyDS group (n=17) |
p value | |
|---|---|---|---|
| Age (years), mean±SD | 75.7±10.5 | 67.1±12.9 | 0.049 |
| Sex, male/female | 4/11 | 9/8 | 0.131 |
| Reasons for the failure to remove stones using standard techniques | 0.445 | ||
| Large stones | 10 (66.7%) | 10 (58.8%) | |
| Stones at cystic duct confluence | 4 (26.7%) | 6 (35.3%) | |
| Mirizzi syndrome with biliobiliary fistula | 1 (6.7%) | 1 (5.9%) | |
| Largest stone size (mm), mean±SD | 20.5±6.8 | 19.8±6.6 | 0.788 |
| Number of stones, mean±SD | 1.8±1.2 | 2.5±2.1 | 0.551 |
| Diameter of common bile duct (mm), mean±SD | 16.2±5.4 | 15.1±4.9 | 0.533 |
| Ampullary interventions prior to stone removal | 0.208 | ||
| EST | 14 (93.3%) | 13 (76.5%) | |
| EPLBD with EST | 1 (6.7%) | 4 (23.5%) |
EST: endoscopic sphincterotomy, EPLBD: endoscopic papillary large balloon dilation