Home Science Those discharged from hosp after Covid have higher risk of organ damage: Study

Those discharged from hosp after Covid have higher risk of organ damage: Study

A medical staff member adjusts a CPAP (Continuous positive airway pressure) helmet on a patient, in the intensive care unit of the Casalpalocco COVID-19 hospital in Rome, Thursday, March 18, 2021. Much of Italy is under new lockdown amid a new surge of infections and as its halting vaccination campaign slows down further thanks to the suspension of AstraZeneca shots. (AP Photo/Alessandra Tarantino) (AP)

The study was published in The BMJ today.

The increase in risk was not confined to the elderly and was not uniform across ethnic groups, prompting the researchers to suggest that the long-term burden of Covid-19-related illness on hospitals and broader healthcare systems is likely to be substantial.

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Although Covid-19 is most well known for causing serious respiratory problems, it can affect other organs and systems within the body, including the heart, kidneys, and liver.

Several unexplained symptoms that continue for more than 12 weeks after Covid-19 are said to be part of a post-covid syndrome (also known as “long Covid”), but the long term pattern of organ damage after infection is still unclear.

To investigate this, a team of UK researchers from the Office for National Statistics, University College London and the University of Leicester set out to compare rates of organ dysfunction in individuals with Covid-19 several months after discharge from hospital with a matched control group from the general population.

Their findings are based on 47,780 individuals (average age 65, 55% men) in a hospital in England with covid-19 who were discharged alive by 31 August 2020.

Participants were matched with controls, based on personal characteristics and medical history. Health records were then used to track rates of hospital readmission (or any admission for controls), death from any cause, and diagnoses of respiratory, cardiovascular, metabolic, kidney, and liver diseases until 30 September 2020.

Over an average follow-up of 140 days, nearly a third of individuals who were discharged from hospital after acute Covid-19 were readmitted (14,060 of 47,780) and more than 1 in 10 (5,875) died after discharge.

These events occurred at rates of 766 readmissions and 320 deaths per 1,000 person-years, which were four and eight times greater, respectively, than those in matched controls.

Rates of respiratory disease, cardiovascular disease, and diabetes were also significantly raised in patients with Covid-19, with 539, 66, and 29 new-onset diagnoses per 1,000 person-years, respectively (equivalent to 27, three, and 1.5 times greater than in matched controls).

Differences in rates of multiorgan dysfunction between patients with Covid-19 and matched controls were greater for individuals aged less than 70 than for those aged 70 or older, and in ethnic minority groups compared with the white population, with the largest differences seen for respiratory disease.

Differences in disease rates between men and women were generally small.

This was a large, well-designed study using 10 years of historical clinical records to exactly match individuals with Covid-19 to controls. However, the findings are observational, and the authors cannot rule out the possibility that rates of diagnoses, in general, might have decreased indirectly because of the pandemic, particularly in people not admitted to hospital with Covid-19.

“Our findings suggest that the diagnosis, treatment, and prevention of post-covid syndrome requires integrated rather than organ or disease-specific approaches,” they write.

And they say urgent research is needed “to understand the risk factors for post-covid syndrome so that treatment can be targeted better to demographically and clinically at-risk populations.”

This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.

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