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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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Abraham NS, Noseworthy PA, Inselman J
Risk of gastrointestinal bleeding increases with combinations of antithrombotic agents and patient age.
This study investigated whether age of patient and time frame increased the risk of gastrointestinal bleeding (GIB) in elderly patients being treated with anticoagulants, antiplatelets, or a combination of both therapies. This retrospective analysis used nationwide claims data from privately insured and Medicare Advantage enrollees who received anticoagulant and/or antiplatelet agents from October 1, 2010, through May 31, 2017. The final cohort included 311,211 patients who had a primary diagnosis of atrial fibrillation, ischemic heart disease, or venous thromboembolism. There was no significant different in the proportion of patients with GIB after anticoagulant or antiplatelet monotherapy, but combination therapy increased GIB risk. Advancing age was also associated with increasing 1-year probability of FIB, especially patients older than 75 years taking combination therapy.
Citation: Abraham NS, Noseworthy PA, Inselman J . Risk of gastrointestinal bleeding increases with combinations of antithrombotic agents and patient age. Clin Gastroenterol Hepatol 2020 Feb;18(2):337-46.e19. doi: 10.1016/j.cgh.2019.05.017..
Keywords: Adverse Drug Events (ADE), Medication, Adverse Events, Medication: Safety, Elderly, Blood Thinners, Blood Clots, Digestive Disease and Health