Table 1 Baseline characteristics of the study patients
|  | RHMD (N = 40) | LHMD (N = 26) | P-value |
|---|---|---|---|
Age (years), mean ± SD | 43.10 ± 18.99 | 44.84 ± 11.46 | 0.643 |
Gender, n (%) | Â | Â | 0.482 |
Male | 18 (45.0%) | 14 (53.8%) | Â |
Female | 22 (55.0%) | 12 (46.2%) | Â |
BMI (kg/m2), mean ± SD | 20.81 ± 3.56 | 22.09 ± 2.60 | 0.096 |
Achalasia subtype, n (%) | Â | Â | 1.000 |
I | 10 (25.0%) | 7 (26.9%) | Â |
II | 22 (55.0%) | 14 (53.8%) | Â |
III | 3 (7.5%) | 2 (7.7%) | Â |
Unknown | 5 (12.5%) | 3 (11.5%) | Â |
Preoperative symptoms, n (%) | Â | Â | Â |
Dysphagia | 38 (95.0%) | 24 (92.3%) | 0.644 |
Regurgitation | 24 (60.0%) | 15 (57.7%) | 0.852 |
Heartburn | 25 (62.5%) | 14 (53.8%) | 0.485 |
Chest pain | 8 (20.0%) | 6 (23.1%) | 0.765 |
Weight loss | 3 (7.5%) | 6 (23.1%) | 0.138 |
Respiratory symptoms | 6 (15.0%) | 3 (11.5%) | 1.000 |
Vomiting | 13 (32.5%) | 6 (23.1%) | 0.409 |
Preoperative treatment, n (%) | Â | Â | Â |
Drug therapy | 6 (15.0%) | 3 (11.5%) | 1.000 |
PD | 7 (17.5%) | 7 (26.9%) | 0.360 |
POEM | 2 (5.0%) | 0 (0.0%) | 0.515 |