Abstract
Increasing evidence showed a link between arterial elasticity and stiffness and pulse pressure (PP), in which plasma aldosterone may play a role. The observational study aimed to explore the potential relations between plasma aldosterone concentration (PAC) and PP in patients with hypertension. We evaluated the relation between PP and PAC in supine, seated, and upright positions in 195 patients with primary hypertension who underwent postural stimulation test. They were divided into 3 groups by tertiles of PP: PP ≤ 44 mm Hg (n = 70), 44 mm Hg < PP ≤ 51 mm Hg (n = 63), and PP ≥ 51 mm Hg (n = 62). The PAC in different postures was compared, respectively. The results showed the following. First, segregated by tertiles of PP, serum K⁺, 24-hour systolic blood pressure, 24-hour diastolic blood pressure, sex, upright PAC, and seated PAC showed statistically significant differences in groups. Second, the PAC were significantly different in 3 levels of PP regardless of postures, the individuals with PP ≥ 51 mm Hg had the highest PAC. On contrast, the patients with PAC > 12 ng/dL showed greater PP than those with PAC ≤ 12 ng/dL. Third, weak associations between PP and upright (r = 0.288, P < 0.001), seated (r = 0.265, P < 0.001), and sup...Continue Reading
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