Comparison of the efficacy and safety of sedation between dexmedetomidine-remifentanil and propofol-remifentanil during endoscopic submucosal dissection

Table 3 Evaluation of gastric motility

Grade of gastric motility
No
No or very weak gating movement of the pyloric ring is observed, but the movement does not show strong contraction
→ No peristalsis
Mild
A circular peristaltic wave is formed in the antrum but disappears without reaching the pyloric ring, or circular contraction temporarily occurs immediately before the pyloric ring
→ Peristaltic wave does not reach the pyloric ring
Moderate
A pronounced peristaltic wave is formed and reaches the pyloric ring
→ Peristaltic wave reached the pyloric ring, which opens and closes, showing star-like contraction as a result of the peristaltic wave
Vigorous
Peristaltic wave is deep and pronounced and proceeds, strangulating the antrum
→ Peristaltic wave reaches the pyloric ring, and the pyloric ring is totally covered by the wave, the area exhibiting star-like contraction protrudes toward the opening of the pyloric ring, and the mucosa is pushed out from the central part of the opening