Lower body negative pressure: physiological effects, applications, and implementation

N Goswami, AP Blaber… - Physiological …, 2019 - journals.physiology.org
This review presents lower body negative pressure (LBNP) as a unique tool to investigate
the physiology of integrated systemic compensatory responses to altered hemodynamic …

Physiological and medical monitoring for en route care of combat casualties

VA Convertino, KL Ryan, CA Rickards… - Journal of Trauma …, 2008 - journals.lww.com
Background: Most prehospital medical interventions during civilian and military trauma
casualty transport fail to utilize advanced decision-support systems for treatment and …

Heart rate variability during total intravenous anesthesia: effects of nociception and analgesia

M Jeanne, R Logier, J De Jonckheere… - Autonomic neuroscience, 2009 - Elsevier
BACKGROUND: Changes in heart rate variability (HRV) during anesthesia likely result from
the interaction of hypnosis, surgical stimulation, analgesia and direct cardiovascular effects …

Peripheral perfusion index as an early predictor for central hypovolemia in awake healthy volunteers

ME Van Genderen, SA Bartels, A Lima… - Anesthesia & …, 2013 - journals.lww.com
BACKGROUND: In healthy volunteers, we investigated the ability of the pulse oximeter–
derived peripheral perfusion index (PPI) to detect progressive reductions in central blood …

Muscle sympathetic nerve activity during intense lower body negative pressure to presyncope in humans

WH Cooke, CA Rickards, KL Ryan… - The Journal of …, 2009 - Wiley Online Library
Activation of sympathetic efferent traffic is essential to maintaining adequate arterial
pressures during reductions of central blood volume. Sympathetic baroreflex gain may be …

Pulse oximeter plethysmographic waveform changes in awake, spontaneously breathing, hypovolemic volunteers

SP McGrath, KL Ryan, SM Wendelken… - Anesthesia & …, 2011 - journals.lww.com
BACKGROUND: The primary objective of this study was to determine whether alterations in
the pulse oximeter waveform characteristics would track progressive reductions in central …

Assessing the quality of heart rate variability estimated from wrist and finger ppg: A novel approach based on cross-mapping method

M Nardelli, N Vanello, G Galperti, A Greco, EP Scilingo - Sensors, 2020 - mdpi.com
The non-invasiveness of photoplethysmographic (PPG) acquisition systems, together with
their cost-effectiveness and easiness of connection with IoT technologies, is opening up to …

Clinical applications of heart rate variability in the triage and assessment of traumatically injured patients

ML Ryan, CM Thorson, CA Otero, T Vu… - … research and practice, 2011 - Wiley Online Library
Heart rate variability (HRV) is a method of physiologic assessment which uses fluctuations in
the RR intervals to evaluate modulation of the heart rate by the autonomic nervous system …

Heart-rate complexity for prediction of prehospital lifesaving interventions in trauma patients

LC Cancio, AI Batchinsky, J Salinas… - Journal of Trauma …, 2008 - journals.lww.com
Background: Traditional vital signs often fail to identify critically injured patients soon enough
to permit timely intervention. To improve our ability to forecast the need for prehospital …

Baroreflex function after spinal cord injury

AA Phillips, AV Krassioukov, PN Ainslie… - Journal of …, 2012 - liebertpub.com
Significant cardiovascular and autonomic dysfunction occurs after spinal cord injury (SCI). It
is now recognized that cardiovascular disease is a leading cause of morbidity and mortality …