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Post by the Scribe on Jun 4, 2021 22:51:32 GMT
Can the coronavirus cause permanent brain damage? | COVID-19 Special
DW News
2.49M subscribers
A study shows the new coronavirus could seriously damage the brain and central nervous system, leading to psychosis, paralysis and strokes. Researchers are calling for more extensive studies to investigate the long-term risks for Covid-19 patients.
And DW science correspondent Derrick Williams answers your questions about the state of coronavirus vaccine research.
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Post by the Scribe on Jun 4, 2021 22:52:36 GMT
COVID-19: How the Virus Affects the Brain | Pravin George, MD
For the latest COVID-19 news and updates from Cleveland Clinic, please visit clevelandclinic.org/coronavirus |
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Post by the Scribe on Jun 4, 2021 22:53:51 GMT
Sensory impairment: How the coronavirus is getting on our nerves | COVID-19 Special
DW News
2.49M subscribers
Many people who catch Covid-19 report a loss of taste and smell. For some it's one of a range of symptoms. For others, it's the only one. Scientists studying the phenomenon believe the sensory impairment could be caused by the virus attacking nerve cells in the nose. This leads to questions about the disease's effect on the brain.
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Post by the Scribe on Jun 4, 2021 22:55:22 GMT
18 COVID 19 Autopsies - This is what they found in the Brain 😱
Doctor Mike Hansen
676K subscribers
18 COVID 19 Autopsies - This is what they found in the Brain 😱
⏩ Timestamps, click to skip ahead!
00:00 - Introduction
00:40 - 18 COVID 19 Autopsies Study
07:30 - Why People Die for COVID 19
What Doctors Are Learning From Autopsy Findings of COVID 19 Patients
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Coronavirus vs. Flu vs. Normal Lungs | Autopsy Comparison
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COVID 19 Autopsy Report Analysis by Doctor Mike Hansen
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12 Autopsy Cases Reveal TRUTH About How Patients Die From COVID 19
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If you’ve seen my previous videos on autopsies that were done on COVID 19 patients, it's pretty clear by now that when patients do die of this coronavirus, it's because of the lungs. Both the lungs' inflammation, pneumonia, and cytokine storm and ARDS, sometimes with multiorgan failure or the major blood clot develops in the lungs. Sometimes though, blood clots show up in other parts of the body as well.
For example, in some cases, clots can travel to the brain and lodge in the blood vessels there, causing decreased blood flow to certain brain regions, known as a stroke.
But this virus, in a different manner, can cause neurologic symptoms in some people, such as headache, confusion, and anosmia, meaning loss of taste and smell. But we don’t really know why this coronavirus sometimes causes these symptoms. Is it because the coronavirus travels in the bloodstream to the brain? Maybe. After all, there are ACE2 receptors that are located in the brain. Is it because the virus got in our nose and used the olfactory nerves that are there to gain entry into our brain? Or are these symptoms more related to the cytokine storm's effect, which is actually pretty common with infections in general, whether from pneumonia or something else? A recent study in NEJM looked at brain findings from autopsies done on 18 patients who died from COVID 19 in a single teaching hospital. All 18 of these patients had nasopharyngeal swab samples that were positive for SARS-CoV-2 on RT-PCR.
11 COVID 19 patients required mechanical ventilation, meaning a breathing tube. Interestingly, it was noted that all of the ventilated patients had a confusional state or decreased arousal from sedation for ventilation. I interpreted this because when they paused the sedation, meaning they temporarily stopped the sedation to assess their mental status, the patient could follow commands during that time. This, in general, is not uncommon, but this does seem to occur more often with COVID 19 patients, and this is something that I’ve been finding with my COVID 19 patients in the ICU.
On average, these COVID 19 patients died about 10 days after being admitted to the hospital.
When they did the autopsies, they looked at the brain as a whole, and they also sampled 10 different areas of the brain and then looked at those samples underneath the microscope. Microscopic examination showed acute hypoxic injury in some regions of the brain. Acute hypoxic injury means tissue was damaged as a result of not getting enough oxygen. For example, there was an acute hypoxic injury in the cerebrum, which is the brain's part that allows us to think and be conscious. There was also an acute hypoxic injury in the cerebellum in all the patients. There were no blood clots in the brain or vasculitis, meaning inflammation of blood vessels. Another thing we want to know is, is the virus actually invading the cells of the brain? In this study, they actually tested the brain tissue for the virus with RT-PCR.
Doctor Mike Hansen, MD
Internal Medicine | Pulmonary Disease | Critical Care Medicine
Website: doctormikehansen.com/
IG Account: instagram.com/doctor.hansen/
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