Table 3 . Baseline characteristic of the patients .
| Mean age (year) | 45.5±13.9 | |
| Sex | male | 15 |
| female | 15 | |
| ASS before treatment | 7.8±3.4 | |
| Mean IRP before treatment | 23.9±10.5 mmHg | |
ASS: Achalasia symptom score, IRP: Integrated Relaxation pressure of the LES
| Mean age (year) | 45.5±13.9 | |
| Sex | male | 15 |
| female | 15 | |
| ASS before treatment | 7.8±3.4 | |
| Mean IRP before treatment | 23.9±10.5 mmHg | |
ASS: Achalasia symptom score, IRP: Integrated Relaxation pressure of the LES