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Related Experiment Videos

An experimental study on endoscopic papillotomy in monkeys.

M Tanaka, S Ikeda, R Tamura

    Endoscopy
    |August 1, 1977
    PubMed
    Summary

    Diathermy papillotomy shows promise for treating bile duct stones without surgery. While temporary liver function changes occurred in monkeys, the procedure ultimately demonstrated safety and efficacy for the hepatobiliary system.

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    Area of Science:

    • Gastroenterology and Hepatology
    • Surgical Innovation
    • Comparative Medicine

    Background:

    • Common bile duct stones often require surgical intervention.
    • Endoscopic papillotomy presents a less invasive alternative for non-operative treatment.
    • Understanding the impact of diathermy papillotomy on the papilla and surrounding organs is crucial.

    Purpose of the Study:

    • To evaluate the safety and effects of diathermy papillotomy on the papilla and adjacent organs in a primate model.
    • To assess potential pathological changes in the hepatobiliary system following the procedure.

    Main Methods:

    • Diathermy papillotomy was performed laparoscopically in three monkeys.
    • Monitoring included white-cell count and liver function parameters.

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  • Autopsy was conducted approximately one year post-procedure.

    • Main Results:

    • Temporary increases in white-cell count and liver function parameters were observed.
    • No definitive evidence of cholestasis or pancreatitis was detected.
    • Autopsy revealed an excellent condition of the papillotomy orifice and adjacent organs.

    Conclusions:

    • Diathermy papillotomy appears to be a safe and effective method for non-operative treatment of common bile duct stones.
    • The procedure may cause transient hepatobiliary system changes but does not lead to significant long-term complications.