Esophageal motor activity and acid clearance.

  title={Esophageal motor activity and acid clearance.},
  author={Peter J. Kahrilas},
  journal={Gastroenterology clinics of North America},
  volume={19 3},
Esophageal acid clearance normally occurs as a two-step process. The initial step of emptying most of the fluid volume contained within the esophagus occurs quickly by gravity or by one or two peristaltic sequences. However, volume clearance is distinct from acid clearance, and esophageal pH is restored to normal after volume clearance as the 1 mL or so of residual acid is neutralized by swallowed saliva in a stepwise fashion. A considerable body of evidence has accumulated suggesting that… CONTINUE READING


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