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

Figure 1

Quality of esophagus cleansing. In the current study, the quality of esophagus cleansing was defined as follows: Grade A (only liquid or frothy discharge or no remnants), Grade B (a little amount of solid food remained), and Grade C (a large amount of solid food remained).