Table 1.
Clinicopathological characteristics and hospital course in the laparoscopy-assisted pylorus preserving gastrectomy and laparoscopy-assisted distal gastrectomy groups
| Factors | Subgroup |
LADG |
LAPPG |
P value |
| (n = 195) (%) | (n = 101) (%) | |||
| Age (mean ± SD) (yr) | 56.5 ± 11.8 | 58.3 ± 12.0 | 0.218 | |
| Sex | Male | 114 (58.5) | 54 (53.5) | 0.458 |
| Female | 81 (41.5) | 47 (46.5) | ||
| BMI (mean ± SD) (kg/m2) | 24.0 ± 3.1 | 24.1 ± 3.1 | 0.617 | |
| ASA | I | 79 (40.5) | 35 (34.7) | 0.441 |
| II | 109 (55.9) | 64 (63.4) | ||
| III | 7 (3.6) | 2 (2.0) | ||
| Tumor size (mean ± SD) (cm) | 2.8 ± 1.5 | 2.5 ± 1.4 | 0.078 | |
| Histological type | WD | 30 (15.4) | 15 (14.9) | 0.716 |
| MD | 45 (23.1) | 20 (19.8) | ||
| PD | 47 (24.1) | 23 (22.8) | ||
| SRC | 70 (35.9) | 43 (42.6) | ||
| Others | 3 (1.5) | 0 (0) | ||
| Proximal margin (mean ± SD) (cm) | 2.7 ± 2.0 | 2.5 ± 2.2 | 0.388 | |
| Distal margin (mean ± SD) (cm) | 8.0 ± 2.5 | 3.6 ± 2.6 | < 0.001 | |
| Number of positive LN (mean ± SD) | 0.1 ± 0.3 | 0.1 ± 0.4 | 0.364 | |
| Number of Harvested LN (mean ± SD) | 33.5 ± 12.2 | 30.5 ± 11.6 | 0.046 | |
| pT | 1 | 188 (96.4) | 96 (95.0) | 0.551 |
| 2 | 7 (3.6) | 5 (5.0) | ||
| pN | 0 | 182 (93.3) | 92 (91.1) | 0.641 |
| 1 | 13 (6.7) | 9 (8.9) | ||
| Operating time (median, IQR) (min) | 150.0 (130.0, 185.0) | 210.0 (185.0, 235.0) | < 0.001 | |
| Estimated blood loss (median, IQR) (cc) | 100.0 (12.5, 200.0) | 100.0 (50.0, 200.0) | 0.235 | |
| Hospital stay (median, IQR) (d) | 7.0 (6.0, 7.0) | 7.0 (5.5, 7.0) | 0.940 |
LADG: Laparoscopy-assisted distal gastrectomy; LAPPG: Laparoscopy-assisted pylorus preserving gastrectomy; SD: Standard deviation; BMI: Body mass index; ASA: American Society of Anesthesiologists physical status classification system; WD: Well differentiated; MD: Moderately differentiated; PD: Poorly differentiated; SRC: Signet ring cell; LN: Lymph node; IQR: Interquartile range.