Does COVID Harm the Heart New Study Says Maybe Not
Does COVID-19 help create heart problems, or are people with preexisting heart issues simply more susceptible to getting the illness?
The issue remains unclear, with a replacement British study finding that folks with heart problems appear to possess an increased risk of contracting COVID-19.
"In this research, we've discovered that poorer heart structure and performance is linked to a better risk of subsequent COVID-19. this is often important because some studies have suggested that COVID-19 may cause structural damage to the guts. However, these studies only use heart scans from people after infection, in order that they can't be certain whether the poor heart structures preexisted COVID-19," explained study lead researcher Zahra Raisi-Estabragh. She's a clinical research training fellow at the Queen Mary University of London.
In their research, the London investigators analyzed the medical records of 310 people within the UK Biobank database. It includes health and genetic information from over half 1,000,000 people, including detailed MRIs of their hearts and links to COVID-19 test results from Public Health England.
People with preexisting unhealthy heart structures and poorer heart function were more likely to check positive for COVID-19 than those with no heart problems, the researchers found. This remained true after they accounted for factors like age, sex, ethnicity, poverty, diabetes, high vital sign, high cholesterol, and former attack.
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"In our study, we used imaging data obtained before COVID-19 and showed that a lot of of those abnormalities likely preexist and predispose people to COVID-19, instead of occurring as a result of infection," Raisi-Estabragh explained during a university news release. "This may be a vital distinction for guiding our management of patients with COVID-19."
But two experts within us who read over the new study said the jury should be out on which comes first, heart trouble or COVID-19.
"Multiple studies have demonstrated the detrimental impact of COVID-19 on the guts," noted Dr. Aeshita Dwivedi, a cardiologist at Lenox Hill Hospital in NY City. "Cardiac complications of COVID-19 include coronary failure, abnormal heart rhythms, also as changes within the structure of the guts ."
The new study "raises the question on what proportion of the guts abnormalities identified after COVID-19 may are present before the infection," she said. "It alludes to the very fact that folks with abnormal hearts are more susceptible to COVID-19 infection."
But Dwivedi said the study is little and at now simply raises a key question about COVID and therefore the heart. "Larger, long-term studies are warranted to answer this question and enhance our understanding of how COVID-19 impacts the guts," she said.
Dr. Michael Goyfman directs clinical cardiology at Long Island Jewish Forest Hills Hospital, also in NY City. He said that due to the study's design -- a glance back at old data -- "causality can't be inferred or implied." Other factors could explain the link, Goyfman said.
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