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Updated: Aug 16, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
Published on: April 23, 2021
Effect of baseline cognitive function and antihypertensive treatment on cognitive and cardiovascular outcomes: Study
Ingmar Skoog1, Hans Lithell, Lennart Hansson
1Institute of Clinical Neurosciences, Neuropsychiatric Epidemiology Unit, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden. Ingmar.Skoog@neuro.gu.se
Insights
Elderly individuals with hypertension and mild cognitive impairment benefit from blood pressure-lowering therapy, which may reduce cognitive decline and stroke risk. This intervention shows promise for improving outcomes in this vulnerable population.
Area of Science:
- Gerontology
- Cardiovascular Medicine
- Neurology
Background:
- The Study on COgnition and Prognosis in the Elderly (SCOPE) investigated the impact of blood pressure (BP)-lowering interventions on cognitive and cardiovascular outcomes.
- Baseline cognitive function was assessed using the Mini Mental State Examination (MMSE) in elderly hypertensive patients.
Purpose of the Study:
- To determine if baseline cognitive function influences cognitive and cardiovascular outcomes in the SCOPE trial.
- To evaluate the efficacy of antihypertensive therapy in elderly patients with varying cognitive statuses.
Main Methods:
- The SCOPE trial enrolled 4937 patients aged 70-89 with mild-to-moderate hypertension and MMSE scores >= 24.
- Patients received either candesartan or placebo, with open-label antihypertensive therapy added as needed.
- Cognitive function was categorized as low (MMSE 24-28) or high (MMSE 29-30).
Main Results:
- Antihypertensive therapy effectively reduced BP in both low and high cognitive function groups.
- Patients with low cognitive function at baseline had a higher incidence of dementia and cardiovascular events.
- Candesartan treatment was associated with less cognitive decline (MMSE score) in patients with low cognitive function and reduced nonfatal stroke incidence in the total sample.
Conclusions:
- Elderly hypertensive patients with slightly impaired cognitive function (MMSE 24-28) face elevated risks of dementia and cardiovascular events.
- Effective antihypertensive therapy, such as candesartan, may mitigate cognitive decline and decrease stroke incidence in this population.
Background:
We examined whether cognitive function at baseline affected cognitive and cardiovascular outcomes in the Study on COgnition and Prognosis in the Elderly (SCOPE), a blood pressure (BP)-lowering intervention trial.
Methods:
SCOPE included 4937 patients, aged 70 to 89 years, with mild-to-moderate hypertension and Mini Mental State Examination (MMSE) score > or =24. Double-blind treatment was initiated with candesartan or placebo. Open-label therapy was added as needed to control BP, both in the candesartan (49%) and control (66%) groups. Mean follow-up was 3.7 years. Low cognitive function (LCF) at baseline was defined as MMSE score 24 to 28 (N = 2070), and high cognitive function (HCF) as MMSE score 29 to 30 (N = 2867).
Results:
Mean BP reductions were approximately 20/10 mm Hg both in LCF and HCF patients, with greater reductions in the candesartan group than in the control group. The incidence of dementia was higher in LCF than in HCF patients. A higher cardiovascular event rate observed in LCF patients was explained by older age and other cardiovascular risk factors at baseline. In LCF patients, the MMSE score declined less in the candesartan than in the control group (mean difference 0.49, 95% confidence interval 0.02 to 0.97, P = .04). Nonfatal stroke was reduced in the candesartan group in the total sample (28%, P = .04), with no difference between LCF (27%) and HCF (29%) patients.
Conclusions:
Elderly patients with mild-to-moderate hypertension and slightly impaired cognitive function (MMSE 24 to 28) are at increased risk of dementia and cardiovascular events. This analysis indicates that effective antihypertensive therapy may reduce cognitive decline and stroke incidence in these patients.
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