Study plan and schedule
| Baseline | During the procedure | 1 month | 3 months | 6 months | 12 months | |
| GCSI Score | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Use of prokinetic medication | ✓ | ✓ | ✓ | ✓ | ✓ | |
| SF-36 questionnaire of quality of life | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Adverse events | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Gastric emptying study | ✓ | ✓ |
GCSI, Gastroparesis Cardinal Symptom Index; SF-36, 36-Item Short Form.