TABLE 1.
Characteristics of the children who underwent peroral endoscopic myotomy.
| Variable | Number |
| Total number | 24 |
| Age, mean ± SD, year | 14.42 ± 2.65 |
| Gender, n(%) | |
| Male | 14 (58.3%) |
| Female | 10 (41.7%) |
| Preoperative height, mean ± SD, m | 1.54 ± 0.18 |
| Preoperative weight, mean ± SD, Kg | 42.52 ± 10.73 |
| Duration of symptoms, median (range), month | 14.5 (3–84) |
| Prior interventions, n(%) | 2 (8.3%) |
| Achalasia subtype, n(%) | |
| Type I | 4/15 (26.7%) |
| Type II | 10/15 (66.7%) |
| Type III | 1/15 (6.7%) |
| Preoperative LES pressure, mean ± SD, mmHg | 30.42 ± 8.27 |
| Preoperative esophageal diameter, mean ± SD, mm | 46.11 ± 9.11 |
| Length of submucosal tunnel, median (range), cm | 12 (5–13) |
| Length of myotomy, median (range), cm | |
| Esophageal | 6 (3–8) |
| Gastric | 3 (2–3) |
| Total | 9 (5–10) |
| Full-thickness myotomy, n(%) | 12/24 (50%) |
| Procedure time, mean ± SD, min | 58.67 ± 19.10 |
| Length of postop hospital stay, mean ± SD, day | 6.42 ± 2.15 |
| Technical success rate of POEM, n(%) | 24 (100%) |
| Perioperative AEs, n(%) | 2/24 (8.3%) |
| Total follow-up period, mean ± SD, month | 85.75 ± 25.91 |