Abstract:AbstractIt has been observed that a distinct blood pressure (BP) response to prolonged and forced hyperventilation in adult patients with essential hypertension is associated with significant changes in plasma catecholamine and β-endorphin levels. This paper investigated whether hemodynamic and neuro-endocrine responses to hyperventilation in elderly patients with essential hypertension (n = 39, mean age 81 ± 3 years) differ from those in elderly patients with secondary hyperte… Show more
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