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Updated: Oct 6, 2025

A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
Published on: May 22, 2019
[COVID-19 and cerebral stroke].
V G Pomnikov1, I V Sakovskiy1, T A Yashchikhina2
1Saint-Petersburg Institute of Advanced Training of Medical Experts, St. Petersburg, Russia.
Patients with stroke and COVID-19 experienced higher mortality and worse recovery. Lymphopenia may predict COVID-19 presence and lung damage severity in stroke patients.
Area of Science:
- Neurology
- Infectious Diseases
- Critical Care Medicine
Background:
- Stroke patients diagnosed with COVID-19 during acute treatment present unique clinical challenges.
- Understanding the impact of concurrent COVID-19 infection on stroke outcomes is crucial for patient management.
Purpose of the Study:
- To analyze mortality rates in stroke patients with COVID-19.
- To evaluate the rehabilitation potential and clinical course of stroke in patients coinfected with COVID-19.
- To identify prognostic markers for COVID-19 in stroke patients.
Main Methods:
- A comparative study involving 50 acute stroke patients with COVID-19 and 50 control stroke patients.
- Polymerase chain reaction (PCR) used to detect SARS-CoV-2.
- Assessment of neurological recovery using the National Institutes of Health Stroke Scale (NIHSS) and functional disability via the modified Rankin scale.
Main Results:
- COVID-19 was confirmed by PCR in 76% of the study group; viral symptoms often appeared after stroke onset.
- Mortality was significantly higher in the COVID-19 stroke group (30%) compared to the control group (6%).
- COVID-19 stroke patients showed poorer neurological recovery (NIHSS) and higher rates of moderate to severe disability (66% on modified Rankin scale). Lymphopenia was observed in 52% of the COVID-19 group.
Conclusions:
- Concurrent COVID-19 infection in stroke patients is associated with increased mortality, reduced neurological recovery, and greater disability.
- Lymphopenia in stroke patients may indicate the presence of COVID-19 and predict lung tissue damage severity.
- These findings highlight the detrimental effect of COVID-19 on stroke outcomes and suggest lymphopenia as a potential prognostic indicator.
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