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Day and night esophageal motor function.

A E Avots-Avotins1, W D Ashworth, B D Stafford

  • 1Department of Medicine, Salt Lake City VA Medical Center, Utah.

The American Journal of Gastroenterology
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

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This study found no significant differences in esophageal function between morning and evening tests. Circadian rhythms may not affect esophageal motility, or more study points are needed to detect them.

Area of Science:

  • Gastroenterology
  • Physiology
  • Chronobiology

Background:

  • Circadian rhythms influence motility in the stomach, small intestine, and colon.
  • The existence of similar rhythms in esophageal motor function is not well-established.

Purpose of the Study:

  • To investigate potential circadian variations in human esophageal motility.
  • To compare esophageal function parameters between morning and evening study sessions.

Main Methods:

  • Esophageal manometry was conducted on 15 healthy males at 10 AM and 10 PM.
  • Measurements included lower esophageal sphincter pressure, contractile amplitude and duration, and peristaltic wave velocity.
  • Studies were performed after a standardized meal consumed 10 hours prior.

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Main Results:

  • No statistically significant differences were observed in any measured esophageal function parameters between the diurnal and nocturnal studies.
  • Key metrics like lower esophageal sphincter pressure and esophageal motility were consistent regardless of study time.

Conclusions:

  • The findings do not support a generalized circadian rhythm affecting esophageal motor function across the entire gastrointestinal tract.
  • A two-time-point study design may be insufficient to detect subtle circadian variations in esophageal motility.