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Related Experiment Videos

Gastric cancer after gastrectomy.

G Arnthorsson1, H Tulinius, V Egilsson

  • 1Department of Surgery, University of Iceland, Reykjavík.

International Journal of Cancer
|September 15, 1988
PubMed
Summary

Gastric resection for non-cancerous conditions may increase gastric cancer risk over 15 years post-surgery. However, the overall risk increase for these patients is not statistically significant.

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Area of Science:

  • Gastroenterology
  • Oncology
  • Epidemiology

Background:

  • Gastric resection is a surgical procedure involving the removal of part or all of the stomach.
  • Previous studies have suggested a potential link between gastric resection and an increased risk of gastric cancer.
  • Understanding this risk is crucial for long-term patient management and cancer prevention strategies.

Purpose of the Study:

  • To evaluate the long-term risk of developing gastric cancer after undergoing gastric resection for non-malignant diseases.
  • To analyze the risk stratified by time elapsed since the surgical procedure.

Main Methods:

  • A cohort of 1,795 inhabitants of Iceland who underwent gastric resection between 1930 and 1974 for non-malignant conditions was identified.
  • Follow-up data was obtained from the Icelandic Cancer Registry, accumulating 30,792 person-years.

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  • Relative risk (RR) for gastric cancer was calculated, with analysis stratified by time since operation.

    • Main Results:

    • The overall relative risk for gastric cancer following gastric resection was a non-significant 1.16-fold increase.
    • In the first 15 years post-operation, the risk of gastric cancer was decreased (RR = 0.49, 95% CI 0.24-0.90).
    • However, 15 years or more after surgery, the risk of gastric cancer significantly increased (RR = 2.17, 95% CI 1.46-3.10, p < 0.001).

    Conclusions:

    • While patients surviving 15 years or more after gastric resection show a statistically significant increased risk of gastric cancer, the overall population risk is not significantly elevated.
    • This increased risk in long-term survivors does not substantially contribute to the total number of gastric cancer cases in Iceland.
    • The findings suggest a delayed increased risk of gastric cancer after gastric resection, emphasizing the need for long-term surveillance in specific patient groups.