Professor Stanislav Ionov, a faculty member at the School of Medicine at the University of Education, explains that the warning symptoms preceding a stroke vary depending on the underlying cause.
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According to Professor Ionov:
“A hemorrhagic stroke—bleeding within the brain—typically occurs due to a sudden spike in blood pressure, which causes blood vessels to rupture and bleed into brain tissue. In such cases, the warning signs are linked to elevated pressure and vascular spasms and may include:
Severe headache
Nausea
Vomiting
Dizziness”
He adds that some hemorrhagic strokes may be triggered by a blood clot blocking a brain vessel. In such situations, symptoms often appear suddenly without prior warning, which may explain cases of sudden death during sleep due to thromboembolism. Still, triggers like intense stress or emotional strain—especially in individuals with blood clotting disorders—may precede these vascular events.
Professor Ionov elaborates on the timeline differences between stroke types:
“While hemorrhagic strokes tend to occur abruptly within minutes, ischemic strokes typically develop gradually over 24 hours. The latter’s symptoms may be vague and include:
General body weakness
Mental confusion or impaired cognition
Loss of balance or coordination
Intermittent headaches
Speech difficulties (dysarthria)
Temporary vision disturbances”
He warns that delaying urgent medical intervention in ischemic stroke cases can lead to a dangerous progression into a hemorrhagic stroke.
Professor Ionov also highlights key risk factors:
“Patients with uncontrolled high blood pressure are the most vulnerable group, especially those who:
Skip regular medical check-ups
Take antihypertensive medications inconsistently
Avoid medication altogether”
(Source: Lenta.ru)
