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Related Experiment Videos

Normal esophageal body function: a study using ambulatory esophageal manometry

R M Bremner1, M Costantini, T R DeMeester

  • 1University of Southern California School of Medicine, Department of Surgery, Los Angeles 90033-4612, USA.

The American Journal of Gastroenterology
|February 19, 1998
PubMed
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This study establishes normal esophageal manometry data, showing contraction patterns vary with eating, sleeping, and being awake. These findings aid in diagnosing esophageal motility disorders.

Area of Science:

  • Gastroenterology
  • Physiology

Background:

  • Esophageal manometry is crucial for diagnosing motility disorders.
  • Normative data for ambulatory esophageal manometry is limited.

Purpose of the Study:

  • To establish normative ambulatory manometric data for esophageal contractions and propagation.
  • To provide reference values for esophageal function in healthy individuals.

Main Methods:

  • Twenty-five healthy volunteers underwent 24-hour ambulatory manometry and pH studies.
  • Circadian pressure data were collected during normal daily activities.
  • Data were analyzed using validated software for quantitative assessment of contractions.

Main Results:

  • Esophageal contraction frequency was lowest during sleep, higher when awake, and highest during meals.

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  • Contraction amplitude and peristaltic wave prevalence increased during meals, enhancing propulsive force.
  • Manometric efficacy varied significantly across different physiological states (eating, awake, sleeping).

    • Conclusions:

    • This study provides essential normative ambulatory manometry data for the esophagus.
    • These reference values are valuable for comparing patient data and diagnosing esophageal diseases.