Results 111 to 120 of about 31,642 (278)

Differences in Sleep Spindle Characteristics Between Children With Narcolepsy and Those With Other Causes of Subjective Sleepiness

Journal of Sleep Research, EarlyView.
ABSTRACT Central disorders of hypersomnolence are characterised by excessive daytime sleepiness. There has been growing interest in analysing sleep micro‐architecture, to further understand how sleep is affected by these conditions. We investigated if sleep spindle activity differed between children with narcolepsy, idiopathic hypersomnolence (IH) and ...
Marisha Shetty, Nushrika Kadam Kishore, Georgina Plunkett, Lauren C. Nisbet, Margot J. Davey, Gillian M. Nixon, Lisa M. Walter, Rosemary S. C. Horne   +7 more
wiley   +1 more source

Evaluation of Electrical and Optical Plethysmography Sensors for Noninvasive Monitoring of Hemoglobin Concentration

Sensors, 2012
Completely noninvasive monitoring of hemoglobin concentration has not yet been fully realized in the clinical setting. This study investigates the viability of measuring hemoglobin concentration noninvasively by evaluating the performance of two types of
Panayiotis A. Kyriacou, Michelle Hickey, Justin P. Phillips   +2 more
doaj   +1 more source

Beyond Deterministic Fetal Programming: Intrauterine Exposures and the Multifactorial Origins of Adiposity

Obesity Reviews, EarlyView.
ABSTRACT Excess adiposity is not a recently developed problem but has existed since at least the upper Paleolithic, allowing evolutionary selection pressures to adapt the physiology of the pregnant woman and the feto‐placental unit for maternal and fetal protection.
Gernot Desoye, Ursula Hiden, Evelyn Jantscher‐Krenn, Herbert Fluhr, Jonathan C. Wells, Sonja Entringer, Mireille N. M. van Poppel   +6 more
wiley   +1 more source

Air plethysmography [PDF]

, 2005
Hintergrund: Ziel der vorliegenden Arbeit war es, die im deutschsprachigen Raum nicht gebräuchliche Methode der Luftplethysmographie vorzustellen und auf ihren Stellenwert in Bezug zur Diagnostik der Chronisch Venösen Insuffizienz hin zu beleuchten ...
Dörr, Dominik
core  

Impedance plethysmography. A screening procedure to detect deep-vein thrombosis [PDF]

, 1987
Impedance plethysmography has great potential in the non-invasive detection of dangerous iliofemoral thrombosis. It was used to examine 198 patients undergoing total hip replacement for evidence of proximal venous segment thrombosis.
AJ Wilkinson, RA Mollan, JG Brown, PE Ward   +3 more
core   +1 more source

Phonocardiography based pulse wave velocity system for non-occlusive assessment of arterial stiffness

Frontiers in Cardiovascular Medicine
Arterial stiffness is strongly associated with vascular aging and pathology and can be assessed in many ways. Existing devices for measuring central arterial stiffness, such as carotid-femoral pulse wave velocity (PWV), are limited by high costs and the ...
T. Corina Margain, Emily Powell, Alexandra Clark, Adam Bush   +3 more
doaj   +1 more source

Ischemia of the Eye on the Background of Primary Hypothyroidism and Primary Thyrotoxicosis

Oftalʹmologiâ, 2019
Purpose: to study the features of the blood filling of the eye in patients with primary untreated hypothyroidism and primary untreated thyrotoxicosis by plethysmography. Materials and methods.
V. G. Likhvantseva, E. V. Korosteleva
doaj   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

Toe digit pulsation measurement by impedance plethysmography in miniaturized devices: An early feasibility test

Journal of Electrical Bioimpedance
This early feasibility test explores impedance plethysmography (IPG) for detecting toe pulse waves using a setup suited for miniaturized devices. Conventional tests often miss micro-circulatory impairment, which is critical for wound healing and limb ...
Kalvøy Håvard, Hisdal Jonny, Tronstad Christian   +2 more
doaj   +1 more source

Increases in skin perfusion and blood oxygen in the non‐exercising human limbs during exercise in the heat: Implications for control of circulation

Experimental Physiology, EarlyView.
Abstract Blood flow in the inactive limb tissues and skin is widely thought to decline during incremental exercise to exhaustion due to augmented sympathoadrenal vasoconstrictor activity, but direct evidence to support this view is lacking. Here, we investigated the inactive‐forearm haemodynamic (Q̇forearm${\dot{Q}}_{\mathrm{forearm}}$) and oxygenation
Steven J. Trangmar, José González‐Alonso   +1 more
wiley   +1 more source