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Antihypertensive therapy. Is it different in the elderly?

F H Messerli1

  • 1Department of Internal Medicine, Ochsner Clinic, New Orleans, Louisiana.

Drugs
|January 1, 1990
PubMed
Summary

Hypertension management in elderly patients requires considering unique physiological changes like reduced cardiac output and increased vascular resistance. Tailoring antihypertensive therapy, such as with calcium channel blockers, improves blood pressure control in seniors.

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Area of Science:

  • Geriatric Medicine
  • Cardiovascular Pharmacology

Background:

  • Elderly hypertensive patients exhibit distinct pathophysiological mechanisms compared to younger individuals.
  • Key characteristics include decreased cardiac output, renal blood flow, and intravascular volume, alongside increased total peripheral and vascular resistance.

Purpose of the Study:

  • To highlight the unique physiological changes in elderly hypertensive patients.
  • To emphasize the importance of considering these changes when prescribing antihypertensive therapy.

Main Methods:

  • Review of pathophysiological mechanisms in elderly hypertensive patients.
  • Analysis of physiological characteristics such as cardiac output, renal blood flow, and vascular resistance.
  • Consideration of target organ diseases and baroreflex function.

Main Results:

  • Elderly patients often present with left ventricular hypertrophy and nephrosclerosis.
  • Impaired baroreflexes and cerebrovascular disease increase susceptibility to hypotension.
  • Calcium channel blockers and converting enzyme inhibitors show particular utility in this population.

Conclusions:

  • Antihypertensive therapy must account for the specific pathophysiology of elderly patients.
  • Matching drug pharmacology to individual pressure elevation mechanisms ensures rational and effective blood pressure management in seniors.

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