Table 3.
Comparison of Clinicopathological Characteristics of Patients in Anterograde Resection and Retrograde Resection Groups
| Variable | Anterograde resection (n=47) | Retrograde resection (n=50) | p-value |
|---|---|---|---|
| Age, yr | 62.7±9.1 | 63.5±10.2 | 0.694 |
| Male sex | 27 (57.4) | 32 (64.0) | 0.509 |
| Location | 0.001 | ||
| Confined to channel, antrum or bulb | 44 (93.6) | 33 (66.0) | |
| Antrum–bulb | 3 (6.4) | 17 (34.0) | |
| Helicobacter pylori infection | 20 (42.6) | 20 (40.0) | 0.798 |
| Histopathology | 0.471 | ||
| Low grade dysplasia | 20 (42.6) | 22 (44.0) | |
| High grade dysplasia | 7 (14.9) | 9 (18.0) | |
| Early gastric cancer | 19 (40.4) | 15 (30.0) | |
| Miscellaneous | 1 (2.1) | 4 (8.0) | |
| Tumor size, mm | 11.7±7.2 | 17.4±10.0 | 0.002 |
| Circumference of resection | <0.001 | ||
| <25% | 15 (31.9) | 1 (2.0) | |
| 25% to <75% | 18 (38.3) | 21 (42.0) | |
| ≥75% | 14 (29.8) | 28 (56.0) | |
| Procedure time, min | 30.8±17.0 | 45.1±19.4 | <0.001 |
| Immediate complication | |||
| Perforation | 1 (2.1) | 1 (2.0) | 0.965 |
| Major bleeding | 1 (2.1) | 1 (2.0) | 0.976 |
| Loss of hemoglobin, g/dL | 0.6±0.7 | 0.5±0.7 | 0.905 |
| En bloc resection | 41 (87.2) | 44 (88.0) | 0.909 |
| Complete resection | 39 (82.9) | 42 (84.0) | 0.892 |
| Postprocedural stenosis | 5 (10.6) | 11 (22.0) | 0.132 |
| Recurrence rate | 1 (2.1) | 0 | 0.300 |
| Additional surgery | 1 (2.1) | 2 (4.0) | 0.228 |
Data are presented as mean±SD or number (%).