Table 3.
Conditions under which a function-preserving gastrectomy can be considered according to Asian guidelines. A prerequisite for surgical therapy of early gastric cancer is that the tumour does not meet the criteria for endoscopic submucosal dissection (ESD)
| Chinese guidelines (CSCO 2021) | Japanese guidelines (JGCA 2021) | Korean guidelines (KGCA 2018) | ||
|---|---|---|---|---|
| Proximal gastrectomy with D1 LAD | Tumour stage | cT1a cN0 | cT1a cN0 | - |
| cT1b cN0 (differentiated type, lesion size < 1.5 cm) | cT1b cN0 (differentiated type, lesion size < 1.5 cm) | |||
| Tumour localisation | Proximal side | Proximal tumours where more than half of the distal stomach can be preserved. | - | |
| Proximal gastrectomy with D1+ LAD | Tumour stage | cT1b cN0 tumours that do not meet the criteria for D1 LAD | cT1b cN0 tumours that do not meet the criteria for D1 LAD | cT1 cN0 |
| Tumour localisation | Proximal side | Proximal tumours where more than half of the distal stomach can be preserved | Upper third of the stomach | |
| Pylorus-preserving gastrectomy with D1 LAD | Tumour stage | cT1a cN0 | cT1a cN0 | - |
| cT1b cN0 (differentiated type, lesion size < 1.5 cm) | cT1b cN0 (differentiated type, lesion size < 1.5 cm) | |||
| Tumour localisation | Middle portion of the stomach | Tumours in the middle portion of the stomach with the distal tumour border at least 4 cm proximal from the pylorus | - | |
| Pylorus-preserving gastrectomy with D1+ LAD | Tumour stage | cT1b cN0 tumours that do not meet the criteria for D1 LAD | cT1b cN0 tumours that do not meet the criteria for D1 LAD | cT1 cN0 |
| Tumour localisation | Middle portion of the stomach | tumours in the middle portion of the stomach with the distal tumour border at least 4 cm proximal from the pylorus | Middle third of the stomach |