What is primary peristalsis in esophageal motility disorders?

Updated: Dec 29, 2017
  • Author: Eric A Gaumnitz, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Primary peristalsis is the peristaltic wave triggered by the swallowing center. The peristaltic contraction wave travels at a speed of 2 cm/s and correlates with manometry-recorded contractions. The relationship of contraction and food bolus is more complex because of intrabolus pressures from above (contraction from above) and the resistance from below (outflow resistance).

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