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Bengaluru, July 18:
A recent study by the National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, has revealed that both COVID-19 infection and COVID-19 vaccines may be associated with neurological complications in a small number of cases. This comprehensive Indian study offers an in-depth look at how the pandemic and subsequent vaccination campaign have impacted neurological health.
Key Findings
COVID-19 and Neurological Disorders
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The NIMHANS research team, led by Dr. M Netravathi, studied 3,200 patients who presented with neurological symptoms between March and September 2020.
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Of these, 120 patients had tested positive for COVID-19 and later developed nervous system-related disorders.
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Affected individuals ranged from 3 to 84 years old, with most being around 49 years old.
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Common symptoms included:
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Loss of consciousness or mental confusion in 47% of cases
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Loss of smell (anosmia) in 14.2% of cases
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Acute fever along with neurological issues
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The study concluded that the COVID-19 virus can directly impact the central nervous system, particularly in patients with severe illness and high fever.
Post-Vaccine Neurological Effects
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Researchers examined 116 patients hospitalized with neurological symptoms within 42 days of receiving a COVID-19 vaccine between May and December 2021.
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29 individuals were diagnosed with immune-related neurological disorders, of whom 27 had received Covishield and 2 had received Covaxin.
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The average onset of symptoms was 16 days after the first vaccine dose.
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Despite these incidents, doctors emphasized that the number of such cases remains extremely low compared to the vast numbers vaccinated.
Long COVID: Lasting Neurological Symptoms
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The study also tracked symptoms in patients who continued to experience issues months after recovering from COVID-19.
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Many reported:
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Changes in behavior
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Loss of interest and motivation
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Memory impairment
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Cognitive dullness
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Doctors stress the need for ongoing medical and psychological support for long-haul patients.
NIMHANS Recommendations
In response to these findings, NIMHANS has issued several key recommendations:
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Establish a national or regional neurological registry to track the long-term effects of COVID-19 and vaccines.
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Promote brain health education focusing on physical activity, sleep, and a healthy lifestyle.
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Maintain a biological sample repository to aid future research on post-COVID neurological outcomes.
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Encourage long-term clinical follow-up for individuals recovering from COVID-19 or experiencing post-vaccine symptoms.
Experts Urge Caution Without Panic
While the research highlights the existence of neurological side effects linked to both COVID-19 infection and vaccination, NIMHANS assures the public that such events are rare and that the benefits of vaccination far outweigh the risks. The institute underscores the need for continuous scientific monitoring and further research to better understand and address any long-term neurological impacts emerging from the pandemic.
Disclaimer: This article is for informational purposes only and should not be construed as medical advice. Always consult qualified healthcare professionals regarding COVID-19 and vaccine-related health concerns.
