Encephalitis a rare, but serious post-COVID complication ; claims study

Written By :  Dr Satabdi Saha
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2021-05-24 02:45 GMT   |   Update On 2021-05-24 05:28 GMT


In a recent study, a team of researchers have found out that COVID-19 patients may encounter a rare but severe neurological complication of encephalitis. The findings have been put forth in European Journal of Neurology.

Although COVID-19 predominantly affects the respiratory system, recent studies have reported the occurrence of neurological disorders such as stroke, in relation to COVID-19 infection. Encephalitis is an inflammatory condition of the brain that has been described as a severe neurological complication of COVID-19. Despite a growing number of reported cases, encephalitis related to COVID-19 infection has not been adequately characterized. To address this gap, this systematic review and meta-analysis aims to describe the incidence, clinical course and outcomes of patients who suffer from encephalitis as a complication of COVID-19.

For the study design, all studies published between November 1, 2019 and October 24, 2020 that reported on patients who developed encephalitis as a complication of COVID-19 were included. Only cases with radiological and/or biochemical evidence of encephalitis were included.

Data analysis revealed the following facts.

  • In this study, 610 studies were screened and 23 studies reporting findings from 129,008 patients, including 138 with encephalitis, were included.
  • The average time from diagnosis of COVID-19 to onset of encephalitis is 14.5 days (Range: 10.8–18.2 days).
  • The average incidence of encephalitis as a complication of COVID-19 was 0.215% (95% CI: 0.056% to 0.441%).
  • The average mortality rate of encephalitis in COVID-19 patients was 13.4% (95% CI: 3.8% to 25.9%).
  • These patients also had deranged clinical parameters including raised serum inflammatory markers and CSF pleocytosis.

Observing the results, the team concluded "Although encephalitis is an uncommon complication of COVID-19, when present, it results in significant morbidity and mortality. Severely-ill COVID-19 patients are at higher risk of suffering from encephalitis as a complication of the infection."

For full article follow the link: https://doi.org/10.1111/ene.14913

Primary source: European Journal of Neurology


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Article Source : European Journal of Neurology

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