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Hypertension in the elderly.
Michael Maddens1, Khaled Imam, Ayham Ashkar
1Division of Geriatric Medicine, William Beaumont Hospital, 3535 West 13 Mile Road, Suite 108, Royal Oak, MI 48073, USA. mmaddens@beaumont.edu
Primary Care
|September 6, 2005
Summary
Treating hypertension in elderly patients can reduce adverse cardiovascular events, but benefits in the very elderly are unclear, with potential risks to overall mortality. Careful blood pressure targets are crucial to avoid negative cognitive effects.
Area of Science:
- Gerontology
- Cardiovascular Medicine
- Clinical Pharmacology
Background:
- Hypertension is a significant risk factor for adverse events in elderly individuals.
- The benefits and risks of hypertension treatment in the very elderly (over 80) require careful consideration.
- Current guidelines for target blood pressures in older adults remain a subject of debate.
Purpose of the Study:
- To review the evidence regarding hypertension treatment in the elderly.
- To discuss the complexities of blood pressure targets and potential risks in very elderly patients.
- To evaluate the role of lifestyle modifications and pharmacological interventions.
Main Methods:
- Literature review of studies on hypertension management in elderly populations.
- Analysis of data concerning cardiovascular outcomes, overall mortality, and cognitive function.
- Evaluation of treatment strategies including lifestyle changes and pharmacotherapy.
Main Results:
- Hypertension treatment reduces cardiovascular events in the elderly up to age 80.
- In the very elderly, treatment may decrease cardiovascular events but potentially increase overall mortality.
- Lowering systolic blood pressure (SBP) below 159 mm Hg is beneficial, but caution is advised if diastolic blood pressure (DBP) falls below 65 mm Hg or the day-night BP difference exceeds 20%.
- Aggressive SBP reduction below 135 mm Hg may accelerate cognitive decline.
Conclusions:
- While hypertension treatment offers benefits for cardiovascular outcomes in the elderly, the impact on overall mortality in the very elderly is less clear.
- Individualized blood pressure targets are essential, considering potential risks like cognitive decline and increased mortality.
- Lifestyle modifications (sodium restriction, exercise, weight loss) and judicious use of first-line agents like thiazides are recommended, with careful monitoring for side effects.