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Stroke risk increases in individuals with multiple head injuries

by Medical Xpress
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The rate of stroke in individuals with no history of prior stroke was 34% higher in individuals who experienced at least one head injury than in their peers with no head injury. The rate is even higher in those who had multiple head injuries, according to new research from the Perelman School of Medicine published recently in Stroke.

“”Head injuries increase the risk of stroke in individuals who may not have had one otherwise,” said the study’s first author Holly C. Elser, MD, Ph.D., a resident in the department of Neurology. “This research adds to the growing list of conditions associated with head injury, and underscores the importance of preventing them through wearing bike helmets and seatbelts in order to minimize the long-term health risks.”

While it is well-understood that TBI can result in conditions in the short-term, such as memory and learning difficulties, mental health disorders, and headache, the long-term impacts of head injury are still emerging. Recent research has shown associations between head injury and disability, late-onset epilepsy, dementia, and death.

As part of the Atherosclerosis Risk in Communities Study, this longitudinal analysis evaluated 30 years of data from over 13,000 community-dwelling individuals (those not hospitalized or living in nursing home facilities) to determine whether head injury has an impact on rates of stroke caused by a blood clot in the brain, called an . Individuals who had a stroke prior to a head injury were excluded from the data set. Head injuries were identified either through International Classification of Diseases codes, or self-reported by individuals through interviews. The head injuries ranged from mild concussion to skull fracture and other severe head trauma.

Although individuals with multiple head injuries in the study had even higher rates of ischemic stroke, researchers did not find that the severity of head injury impacted the rate of stroke later in life. The authors also found that were more strongly associated with more .

“This research also illustrates the importance of early interventions to manage the risk of stroke specifically in individuals who previously suffered a head injury and don’t have a history of stroke,” said Elser. “For example, clinicians should counsel these individuals on and exercise practices, which are proven to reduce stroke risk, as well as manage other with medication, including and high blood cholesterol.”

More information:
Holly Elser et al, Head Injury and Risk of Incident Ischemic Stroke in Community-Dwelling Adults, Stroke (2024). DOI: 10.1161/STROKEAHA.123.046443

Citation:
Stroke risk increases in individuals with multiple head injuries (2024, June 4)
retrieved 4 June 2024
from https://medicalxpress.com/news/2024-06-individuals-multiple-injuries.html

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