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Related Experiment Videos

Does gastrectomy predispose to amyotrophic lateral sclerosis?

K Kondo

    Archives of Neurology
    |September 1, 1979
    PubMed
    Summary
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    Gastrectomy does not appear to increase the risk of developing amyotrophic lateral sclerosis (ALS). Two large case-control studies in Japan found no statistically significant link between the surgery and subsequent ALS diagnosis.

    Area of Science:

    • Neurology
    • Gastroenterology
    • Epidemiology

    Background:

    • Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease.
    • Some researchers hypothesized a link between gastrectomy (stomach removal surgery) and ALS, suggesting a potential "deficiency factor" post-surgery.
    • Establishing a statistical association is crucial for understanding potential risk factors.

    Purpose of the Study:

    • To investigate the potential association between gastrectomy and the subsequent development of amyotrophic lateral sclerosis (ALS).
    • To determine if gastrectomy is a risk factor for ALS.
    • To analyze other potential factors associated with ALS occurrence.

    Main Methods:

    • Conducted two case-control studies in Japan.
    • Included a total of 870 cases of ALS (712 in one study, 158 in the other).

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  • Analyzed the history of gastrectomy and other potential risk factors in relation to ALS diagnosis.

    • Main Results:

    • No statistically significant association was found between gastrectomy and the occurrence of ALS in either study.
    • The findings indicate that gastrectomy is unlikely to predispose individuals to ALS.
    • Mechanical injury was the only other factor showing a statistically significant association in one of the studies.

    Conclusions:

    • The hypothesis that gastrectomy precipitates ALS due to a deficiency factor is not supported by the evidence from these studies.
    • Gastrectomy does not appear to be a significant risk factor for developing amyotrophic lateral sclerosis.
    • Further research may be needed to explore other potential, less common, risk factors for ALS.