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Related Experiment Videos

VIPoma syndrome.

G J Krejs

    The American Journal of Medicine
    |May 29, 1987
    PubMed
    Summary
    This summary is machine-generated.

    Vasoactive intestinal polypeptide (VIP) tumors cause watery diarrhea and electrolyte imbalances. Treatment with somatostatin analogues can effectively manage symptoms by inhibiting VIP release, even in metastatic cases.

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    Area of Science:

    • Endocrinology
    • Neuroscience
    • Gastroenterology

    Background:

    • The Verner-Morrison syndrome, characterized by watery diarrhea, was first described 29 years ago.
    • Vasoactive intestinal polypeptide (VIP) is implicated in the pathophysiology of this syndrome.
    • VIP normally functions as a neurotransmitter, with low plasma concentrations in healthy individuals.

    Purpose of the Study:

    • To elucidate the pathophysiology of VIP-related watery diarrhea syndrome.
    • To explore the role of VIP in normal physiology and disease states.
    • To review therapeutic options for VIPoma syndrome.

    Main Methods:

    • Clinical observations and experimental data were reviewed.
    • Pathophysiology of VIP release and its effects were analyzed.
    • Therapeutic efficacy of somatostatin analogues was assessed.

    Main Results:

    • VIP-rich tumors (pancreatic islet or neural crest origin) lead to elevated VIP plasma levels.
    • High VIP levels cause severe secretory diarrhea, hypovolemia, hypokalemia, and acidosis.
    • Surgical removal of the tumor resolves symptoms.
    • Somatostatin analogues offer a promising treatment for metastatic VIPoma by inhibiting VIP release.

    Conclusions:

    • VIP plays a critical role in secretory diarrhea associated with VIPoma syndrome.
    • Successful tumor removal is curative.
    • Somatostatin analogues provide effective symptom management for patients with metastatic disease.