Using the ear photoplethysmographic waveform as an early indicator of central hypovolemia in healthy volunteers utilizing LBNP induced hypovolemia model.
Sign Up to like & getrecommendations! Published in 2023 at "Physiological measurement"
DOI: 10.1088/1361-6579/acd165
Abstract: OBJECTIVE To study the photoplethysmographic (PPG) waveforms of different locations (ear and finger) during lower body negative pressure (LBNP) induced hypovolemia. Then, to determine whether the PPG waveform can be used to detect hypovolemia during… read more here.
Keywords: ppg; lbnp; waveform; lbnp induced ... See more keywords
Effects of lower body negative pressure on critical closing pressure and brain tissue mechanics in healthy young adults
Sign Up to like & getrecommendations! Published in 2023 at "Physiology"
DOI: 10.1152/physiol.2023.38.s1.5734656
Abstract: BACKGROUND: Elastography has emerged as a powerful tool for assessing the viscoelastic mechanical properties of the brain which are believed to reflect the microstructural integrity of neuronal tissue. Little is known about the influence of… read more here.
Keywords: brain; brain tissue; pressure; lbnp ... See more keywords
Similar Hemostatic Responses to Hypovolemia in Hemorrhage and Lbnp Reveals a Hyperfibrinolytic Subset of Baboons
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DOI: 10.1182/blood-2019-131792
Abstract: Background: Lower body negative pressure (LBNP) has been established in human studies as an alternative method to blood removal (HEM) to study central hypovolemia. In a baboon model, LBNP also mimics the cardiovascular response of… read more here.
Keywords: hem; blood; lysis; lbnp ... See more keywords