Manometry of neonatal nonnutritive and nutritive sucking

Manometric testing demonstrating nonnutritive sucking and nutritive sucking patterns.
(A) Nonnutritive sucking pattern is characterized by the presence of several oral sucks, accompanied by a solitary fully propagated pharyngeal swallow (arrowhead), associated with UES relaxation, esophageal body peristalsis, and LES relaxation. The black arrows represent anterograde propagation of the swallow from pharynx to stomach.
(B) Nutritive sucking pattern is characterized by the presence of pharyngeal bursting pattern (dashed arrow) followed by multiple propagated swallows as the infant moves the bolus through the esophagus before propagation into the stomach. These swallows are associated with UES relaxation, esophageal body peristalsis, and LES relaxation. The black arrows represent anterograde propagation from pharynx to stomach.