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.
Abstract

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