In a case series study that explored the association of COVID-19 and acute ischemic stroke, researchers at Emory University Hospital observed higher than expected rates of unexplained or “cryptogenic” strokes, as well as delays in stroke presentations or symptom recognition. Results were published online Sept. 18 in PLOS ONE.
Ischemic stroke, caused by a clot that blocks blood flow to the brain, is the most common form of acute stroke. But in some instances, despite looking for causes of these strokes—by a thorough cardiac evaluation (heart conditions are one of the most common causes); by looking at blood vessels supplying the brain or by testing for increased blood clotting conditions—the cause cannot be determined.
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