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Related Experiment Videos

Function of the anal sphincters following pull-through operations without anal eversion.

C Cortesini, C Paparozzi, G Carassale

    Bollettino Della Societa Italiana Di Biologia Sperimentale
    |May 15, 1979
    PubMed
    Summary

    The Bacon pull-through operation impairs internal anal sphincter function, reducing resting pressure. However, external sphincter contraction can still maintain fecal continence.

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    Area of Science:

    • Colorectal Surgery
    • Physiology
    • Gastroenterology

    Background:

    • The Bacon type pull-through operation is a surgical procedure affecting anal sphincter function.
    • Assessing the impact of this operation on continence is crucial for patient outcomes.

    Purpose of the Study:

    • To investigate the functional changes in anal sphincters after a Bacon type pull-through operation.
    • To evaluate the contribution of different sphincter components to maintaining continence post-surgery.

    Main Methods:

    • Anal manometry was used to measure anal resting pressure.
    • Sphincter response to stimulation was assessed to evaluate tonic external sphincter contraction.

    Main Results:

    • A significant decrease in anal resting pressure was observed post-operation, indicating internal sphincter dysfunction.

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  • The tonic contraction of the external sphincter, when stimulated, was sufficient to preserve continence.

    • Conclusions:

    • The Bacon type pull-through operation leads to impaired internal anal sphincter function.
    • External anal sphincter function remains critical for maintaining continence after this procedure.