What distinguishes why beta-blockers sometimes fail to adequately control blood pressure in elderly patients with hypertension, compared to younger individuals?

💡 Explanation

Beta-blockers primarily reduce blood pressure by decreasing cardiac output and renin release. However, in elderly patients, arterial stiffening reduces arterial compliance, therefore beta-blockers have a diminished effect on blood pressure because the increased stiffness blunts the drug's impact on systemic vascular resistance, rather than sodium retention or baroreceptor activity alone.

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