Table 1.
Baseline characteristics.
| Characteristic | N = 1955 | |
|---|---|---|
| Age [years, median (IQR)] | 53 (45–61) | |
| Gender [No. (%)] | ||
| Female | 705 (36.1) | |
| Male | 1250 (63.9) | |
| Coexisting diseases [No. (%)] | ||
| Diabetes | 51 (2.6) | |
| Hypertension | 234 (12) | |
| History of abdominal operation | 179 (9.2) | |
| ESD location [No. (%)] | ||
| Upper 1/3 stomach | 685 (35.1) | |
| Middle 1/3 stomach | 587 (30) | |
| Lower 1/3 stomach | 683 (34.9) | |
| Tumor size [mm, median (IQR)] | 10 (7–15) | |
| Pathology [No. (%)] | ||
| Adenoma | 163 (8.3) | |
| Adenocarcinoma | 96 (4.9) | |
| Hyperplastic polyp | 168 (8.6) | |
| Heterotopic pancreas | 200 (10.2) | |
| Lipoma | 44 (2.3) | |
| Leiomyoma | 432 (22.1) | |
| Neuroendocrine tumor | 22 (1.1) | |
| Schwannoma | 18 (0.9) | |
| Fibroma | 39 (2) | |
| Stromal tumor | 590 (30.2) | |
| inflammation | 117 (6) | |
| Other | 69 (3.5) | |
| Intraoperative bleeding [No. (%)] | 484 (24.8) | |
| Perforation [No. (%)] | 535 (27.4) | |
| Procedure time [min, median (IQR)] | 33 (21–42) | |
| En bloc resection [No. (%)] | 1842 (94.2) | |
| Postoperative fever days (mean ± SD) | 1.48 ± 0.85 | |
| Highest body temperature (°C, mean ± SD) | 37.6 ± 3.12 | |
| Type of antibiotic used | ||
| Second generation cephalosporin | 89 (42.68%) | |
| Third generation cephalosporin | 55 (26.07%) | |
| 4-quinolones | 5 (2.37%) | |
| Carbapenems | 61 (28.91%) | |
| Cephamycin | 1 (0.47%) | |
| Gastric tube placement [No. (%)] | 1184 (60.6) | |
| Duration of gastric tube (days, mean ± SD) | 3.7 ± 1.06 | |
| Duration of hospitalization [days, median (IQR)] | 7 (6–9) | |
| Postoperative adverse events [No. (%)] | ||
| Perforation | 0 | |
| Abdominal pain | 26 (1.3) | |
| Nausea and vomiting | 71 (3.6) | |
| Secondary endoscopy [No. (%)] | 3 (0.15) | |
| Mortality [No. (%)] | 0 |