Why the study?
Does indirect blood pressure measurement accurately reflect direct blood pressure in elderly patients or those with advanced arteriosclerosis?
Population
Properly scaled, simulated mechanical system and human subjects
Comparison
Indirect blood pressure measurement vs Direct blood pressure measurement
Design
Preclinical
Authors
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Caution advised with auscultatory BP in stiff arteries; animal data leaves open human validation.
Does indirect blood pressure measurement accurately reflect direct blood pressure in elderly patients or those with advanced arteriosclerosis?
Indirect blood pressure measurements using the auscultatory technique can have significant inherent errors (30-50 mm Hg) in patients with stiff or thick artery walls, such as the elderly.
Alvin H. Sacks (1979) studied this question.
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