A New Preparation Method for Peroral Endoscopic Myotomy in Patients with Achalasia Can Effectively Reduce the Esophageal Residual Contents: A Comparative Retrospective Study

Table 1

Baseline patient characteristics of the carbonated beverage group and the control group.

	Carbonated beverage group ()	Control group ()	value
Age (years)			0.300
Sex, male	25 (52.1%)	9 (52.9%)	0.951
BMI			0.214
Symptoms duration (years)			0.759
Previous POEM	5 (10.4%)	3 (17.6%)	0.436
Eckardt score			0.238
Sigmoid type	4 (8.3%)	2 (11.8%)	0.648

BMI: body mass index; POEM: peroral endoscopic myotomy.