26 October 2020
Hospitalised COVID-19 patients who were taking a daily low-dose aspirin to protect against cardiovascular disease had a significantly lower risk of complications and death compared to those who were not taking aspirin, according to a new study.
The research was led by scientists at the University of Maryland School of Medicine (UMSOM), US. Aspirin takers were less likely to be placed in the intensive care unit (ICU) or hooked up to a mechanical ventilator and they were more likely to survive the infection compared to hospitalised patients who were not taking aspirin. According to the researchers, their study provides “cautious optimism” for an inexpensive, accessible medication with a well-known safety profile that could help prevent severe complications.
To conduct the study, Chow and his colleagues went through the medical records of 412 COVID-19 patients, age of 55 on average, who were hospitalised over the past few months due to complications of their infection. About a quarter of the patients were taking a daily low-dose aspirin (usually 81mg) before they were admitted or right after admission to manage their cardiovascular disease.
The researchers found aspirin use was associated with a 44 percent reduction in the risk of being put on a mechanical ventilator, a 43 percent decrease in the risk of ICU admission and – most importantly – a 47 percent decrease in the risk of dying in the hospital compared to those who were not taking aspirin. The patients in the aspirin group did not experience a significant increase in adverse events such as major bleeding while hospitalised.
“We believe that the blood thinning effects of aspirin provides benefits for COVID-19 patients by preventing microclot formation,” said study co-author Associate Professor Michael Mazzeffi.
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