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Published on: May 17, 2024
Antihypertensive treatment can prevent stroke and cognitive decline
Peter Sörös1, Shawn Whitehead, J David Spence
1Department of Clinical Neurological Sciences, London Health Sciences Centre, 339 Windermere Road, London, ON N6A 5A5, Canada.
Insights
Untreated hypertension significantly increases the risk of stroke and dementia. Effective antihypertensive treatment is crucial for preventing these prevalent brain diseases in all patients.
Area of Science:
- Neurology
- Cardiology
- Geriatrics
Background:
- Hypertension is a major risk factor for stroke and dementia, particularly small-vessel disease.
- Stroke, both lacunar and cortical, contributes to dementia, potentially via neuroinflammation.
- Despite improved control, undertreatment persists, especially in elderly patients due to concerns about adverse events.
Approach:
- This article reviews the link between hypertension, stroke, and dementia.
- It emphasizes the benefits of antihypertensive treatment in preventing brain diseases.
- It addresses physician reluctance to prescribe medication in older adults.
Key Points:
- Hypertension is the leading risk factor for small-vessel disease, lacunar infarction, and intracerebral hemorrhage.
- Ischemia-induced neuroinflammation likely mediates the relationship between stroke and dementia.
- Optimal blood pressure targets are essential for effective antihypertensive therapy.
Conclusions:
- Antihypertensive treatment offers a vital opportunity to prevent stroke and dementia.
- Physician hesitancy regarding antihypertensive medication in the elderly needs to be addressed.
- Managing hypertension is critical for brain health across all age groups.
Abstract:
Hypertension is a highly prevalent risk factor for stroke and dementia, and is the greatest risk factor for small-vessel disease-a frequent cause of lacunar infarction and intracerebral haemorrhage. Lacunar and cortical strokes contribute to the development of dementia in patients with, and in those without, Alzheimer disease pathology; this relationship between stroke and dementia is probably mediated by ischaemia-induced neuroinflammation. Antihypertensive treatment can reduce the risk of stroke and dementia, but requires optimal blood pressure targets to be established for individual patients. Although the rate of treatment and control of hypertension has improved markedly over the past two decades, many physicians remain reluctant to prescribe antihypertensive medication to elderly patients owing to potential adverse events such as cardiovascular morbidity and postural hypotension. In this article we argue that, in patients of all ages, not treating hypertension is a missed opportunity to prevent some of the most prevalent brain diseases.
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