Effect of peroral esophageal myotomy for achalasia treatment: A Chinese study

Table 1 Patient characteristics (n = 50)

Characteristic	Value
Male:female	28:22
Age (yr)	42.5 (14-70)
Duration of symptoms (yr)	6.6 (0.17-40)
Eckardt score	7.5 (3-11)
Previous treatments, n (%)
Pneumatic dilation	8 (16)
Nifedipine	2 (4)
Achalasia subtype, n (%)	35 (70)
I	3
II	28
III	4

Data are presented as mean (range), unless otherwise indicated.

Table 2 Peroral endoscopic myotomy data (n = 35)

Variable	Before	After (1 mo)	P value
Lower esophagus sphincter resting pressure, mmHg	28.94 ± 18.70	16.02 ± 5.46	0.000
4s integrated relaxation pressure, mmHg	27.18 ± 14.63	12.22 ± 6.75	0.000
Lower esophageal sphincter relaxation rate	23.00% ± 18.55%	35.59% ± 21.78%	0.005

Table 3 Complications n (%)

Complications	Value
Pneumomediastinum	2 (4)
Cervical emphysema	0
Junctional flap perforation	0
Major bleeding	0
Acute bleeding or intraoperative bleeding	0
Delayed bleeding	0
GER	0

GER: Gastroesophageal reflux.