Why the study?
Does respiration induce changes in tissue blood volume distal to an occluded artery as measured by photoplethysmography in healthy subjects?
Population
Healthy subjects
Comparison
Brachial artery occlusion by pressure cuff in… vs Right hand (unoccluded artery)
Design
Other
Authors
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May confound PPG interpretation distal to arterial occlusion; hypothesis-generating for sympathetic mediation in vascular monitoring.
Does respiration induce changes in tissue blood volume distal to an occluded artery as measured by photoplethysmography in healthy subjects?
Respiration induces blood volume changes distal to an occluded artery, likely mediated by the sympathetic nervous system causing blood volume transition from small arteries to big veins.
Nitzan et al. (2006) studied this question.
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