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Related Experiment Videos

Lesser curve myotomy: an experimental study.

T V Taylor

    Annals of Surgery
    |April 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Lesser curve myotomy in dogs effectively reduces stomach acid and pepsin secretion, similar to proximal gastric vagotomy. This surgical approach offers a safe alternative, preserving key nerves and vessels.

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    Area of Science:

    • Gastroenterology
    • Surgical Innovation
    • Physiology

    Background:

    • The nerve of Latarjet branches run with the stomach's serosa before entering the muscularis.
    • Pyloric and esophageal myotomies are established surgical procedures.
    • Lesser curve myotomy aims to denervate the parietal cell mass while preserving major vessels.

    Purpose of the Study:

    • To investigate the efficacy of lesser curve myotomy in denervating the parietal cell mass.
    • To assess the impact of this procedure on gastric acid and pepsin secretion.
    • To establish the anatomic and physiologic basis for this surgical technique.

    Main Methods:

    • Lesser curve myotomy was performed on dogs.
    • Pre- and postoperative gastric secretory studies were conducted using pentagastrin and insulin stimulation.

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  • Dose-response curves for acid secretion and pepsin output were analyzed.

    • Main Results:

    • Lesser curve myotomy caused a significant rightward shift in the pentagastrin dose-response curve for acid secretion.
    • A profound inhibition of pepsin output was observed post-myotomy.
    • Insulin-stimulated acid and pepsin secretion were nearly completely abolished.

    Conclusions:

    • Lesser curve myotomy demonstrates a secretory inhibition comparable to proximal gastric vagotomy.
    • The procedure has a sound anatomic and physiologic basis for reducing gastric secretion.
    • This technique is technically feasible and avoids risks associated with nerve of Latarjet damage or ischemic necrosis.