Abstract
The pressure profile of esophageal peristalsis was studied in healthy young adult males using an intraesophageal transducer assembly. The amplitude of peristaltic contractions following wet swallows was determined at intervals along the esophagus from the lower esophageal sphincter (LES) to the upper esophageal sphincter (UES). The amplitude profile revealed a trough of significantly decreased (P<0.05) amplitude at 17.5–20.0 cm above the LES. The change in pressure per unit time (dp/dt) produced a profile also with a significant decrease (P<0.01) in the upper esophagus, having good correlation (r=0.91,P<0.001) with the amplitude profile. Mean velocity of the peristaltic wave in the upper esophagus varied from 2.92±0.19 (±SEM) to 3.29±0.36 cm/sec. In the distal esophagus, mean velocity increased significantly (P<0.01) to 4.98±0.38 cm/sec at 7.5 cm above the LES, and then fell significantly (P<0.05) to 2.15±0.27 cm/sec at 2.5 cm above the LES. This report establishes amplitude and velocity profiles in the human esophagus. The profile of the first derivative of the primary peristaltic wave (dp/dt) is also described, and its possible importance discussed.
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Supported by the Bureau of Medicine and Surgery Clinical Investigation Program #5-05-530R.
The opinions and assertions expressed herein are those of the authors and are not to be construed as official or reflecting the views of the Navy Department or of the Naval Service.
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Humphries, T.J., Castell, D.O. Pressure profile of esophageal peristalsis in normal humans as measured by direct intraesophageal transducers. Digest Dis Sci 22, 641–645 (1977). https://doi.org/10.1007/BF01073085
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DOI: https://doi.org/10.1007/BF01073085