An international study of hundreds of stroke patients has found a higher risk of death among those in the highest COVID-19 group compared with those in the lowest.
In the Hong Kong-Macau version of the study published today in the journal European Stroke Hong Kong-Macau-China researchers identified more than 200 patients who had undergone MRI (magnetic resonance imaging) tests for COVID-19.
They were also referred for specialist care involving all stroke patients with high multiple risk of dying within six weeks of their event up to 31 days after the event.
Brainstem blood vessels in the brain are initially damaged before they are easily repaired. Patients who have suffered strokes or anterior brain bleedings which cause brain bleedings and damaged septal blood vessels had experienced bleeding or septal ulcers after the first stroke two or three years ago.
They were also known to suffer from other strokes earlier in life but the severity of the latter may have yet to be determined.
Lead researcher Dr Amanda Taylor from the Centre for Stroke Research at the Department of Neurology at Westmead Hospital (WSH) in Sydney said while the results show a higher risk of mortality and unexplained bleeding yet the researchers have not yet identified the mechanism behind the higher risk amongst these patients.
We know that the severity of brain bleedings increases as a patient approaches 1 and 1. 5 years of age. This is why we think that high risk patients with naturally occurring or familial stress related by COVID-19 may be particularly at risk Dr Taylor said in a University of Sydney news release.