Differences in mean arterial pressure of young and elderly people measured by oscilometry during inflation and deflation of the arm cuff

摘要

Systemic arterial blood pressure (BP) is one of the most important parameters of the cardiovascular system. An oscillometric NIBP monitor was specifically designed to measure oscillometric pulsations and mean arterial pressure (MAP) during inflation and deflation of the cuff. Nineteen healthy young (age 23.1 +/- 1.7 years; mean +/- SD) and 35 elderly (83.9 +/- 7.9 years; mean +/- SD) subjects were studied. Differential analysis of MAP during inflation and deflation show mean |Delta MAP| = 2.9 +/- 2.6 mm Hg in the young group (mean +/- SD) and vertical bar Delta MAP| = 6.3 +/- 5.2 mm Hg for seniors (mean +/- SD). There was a significant difference (p < 0.05) in means of |Delta MAP| measured during cuff inflation and cuff deflation between both groups. In about 50% of elderly subjects |Delta MAP| was higher than 5 mm Hg. Potential clinical relevance of the method needs to be further evaluated.