Aspirin Reduces the Risk of Several Gastrointestinal Cancers

With everyone focused on surviving the Coronavirus epidemic, it’s easy to miss articles dealing with issues other than COVID-9   The Annals of Oncology published a review study performed by Cristina Bosetti, M.D. and colleagues from Milan, Italy.  They performed a literature search examining studies looking at the relationship between aspirin consumption and gastrointestinal cancer.

They found that taking one or two aspirin per week was associated with a reduced risk of pancreatic cancer, colon and rectal cancer, squamous cell esophageal cancer, stomach cancer and hepatobiliary cancer.  When they looked specifically at colon and rectal cancer, they found the risk of developing the disease dropped with increased aspirin dosages. “An aspirin dosage between 75-100 mg a day was associated with a 10% reduction in a person’s risk of developing cancer compared to people not taking aspirin.  A dose of 325 mg a day was associated with a 35% reduction and a dose of 500 mg a day was associated with a 50% reduction in risk.

To obtain this type of risk reduction, patients had to be taking the prophylactic aspirin for a long time, at least 10 years. The ingestion of aspirin may have lowered the risk of intestinal cancer, but it carried with it the increased risk of bleeding.

Much has been written recently about the lack of protection against cardiovascular disease in patients without diabetes or documented heart disease who take daily aspirin. That may be true but there does appear to be a positive effect in preventing intestinal cancer. This is a complicated topic which should be discussed with your physician before embarking on a course of prevention.

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