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The effect of manometric assembly diameter on intraluminal esophageal pressure recording

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Abstract

Recent studies indicate that lower esophageal sphincter pressure is influenced by manometric assembly diameter. This study determines the effect of assembly diameter on both esophageal sphincter pressure and peristaltic pressure in the esophageal body. We performed esophageal manometric studies in 6 normal subjects using graded assembly diameters. High-fidelity recording was achieved by using a noncompliant catheter-infusion system. The results indicate that increases in assembly diameter cause significant increases in peristaltic pressure amplitudes and in resting sphincter pressure in both the smooth and striated muscle portions of the esophagus. This phenomenon is best explained by the length-tension characteristics of esophageal muscle, increased stretch causing greater contraction force.

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Authors and Affiliations

  1. Department of Radiology Milwaukee County Medical Complex, The Medical College of Wisconsin, 8700 West Wisconsin Avenue, 53226, Milwaukee, Wisconsin

    Sean B. Lydon MD, Wylie J. Dodds MD, Walter J. Hogan MD & Ronald C. Arndorfer

  2. Department of Medicine, The Medical College of Wisconsin, Milwaukee, Wisconsin

    Sean B. Lydon MD, Wylie J. Dodds MD, Walter J. Hogan MD & Ronald C. Arndorfer

Authors
  1. Sean B. Lydon MD
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  2. Wylie J. Dodds MD
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  3. Walter J. Hogan MD
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  4. Ronald C. Arndorfer
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Additional information

This work was supported in part by USPHS Research Grant 1 R01 AM 15540.

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Lydon, S.B., Dodds, W.J., Hogan, W.J. et al. The effect of manometric assembly diameter on intraluminal esophageal pressure recording. Digest Dis Sci 20, 968–970 (1975). https://doi.org/10.1007/BF01070885

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  • DOI: https://doi.org/10.1007/BF01070885

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