Results 21 to 30 of about 5,443,198 (404)

Reflex responses from the main pulmonary artery and bifurcation in anaesthetised dogs [PDF]

open access: yes, 2000
This study was undertaken to determine the reflex cardiovascular and respiratory responses to discrete stimulation of pulmonary arterial baroreceptors using a preparation in which secondary modulation of responses from other reflexes was prevented.
Drinkhill, M.J.   +3 more
core   +1 more source

Relation between respiratory variations in pulse oximetry plethysmographic waveform amplitude and arterial pulse pressure in ventilated patients. [PDF]

open access: yes, 2005
IntroductionRespiratory variation in arterial pulse pressure is a reliable predictor of fluid responsiveness in mechanically ventilated patients with circulatory failure.
Besnard, Cyril   +4 more
core   +2 more sources

Intracranial baroreflex is attenuated in an ovine model of renovascular hypertension

open access: yesScientific Reports, 2021
We have previously shown that elevations in intracranial pressure (ICP) within physiological ranges in normotensive animals increase arterial pressure; termed the intracranial baroreflex.
Sydney Vari   +3 more
doaj   +1 more source

Non-invasive Evaluation of Aortic Stiffness Dependence with Aortic Blood Pressure and Internal Radius by Shear Wave Elastography and Ultrafast Imaging [PDF]

open access: yes, 2018
Elastic properties of arteries have long been recognized as playing a major role in the cardiovascular system. However, non-invasive in vivo assessment of local arterial stiffness remains challenging and imprecise as current techniques rely on indirect ...
Dizier, B.   +5 more
core   +3 more sources

Arterial smooth muscle cell PKD2 (TRPP1) channels regulate systemic blood pressure

open access: yeseLife, 2018
Systemic blood pressure is determined, in part, by arterial smooth muscle cells (myocytes). Several Transient Receptor Potential (TRP) channels are proposed to be expressed in arterial myocytes, but it is unclear if these proteins control physiological ...
Simon Bulley   +12 more
doaj   +1 more source

PressLight: Learning Max Pressure Control to Coordinate Traffic Signals in Arterial Network

open access: yesKnowledge Discovery and Data Mining, 2019
Traffic signal control is essential for transportation efficiency in road networks. It has been a challenging problem because of the complexity in traffic dynamics.
Hua Wei   +6 more
semanticscholar   +1 more source

Contribution of the Arterial System and the Heart to Blood Pressure during Normal Aging - A Simulation Study. [PDF]

open access: yesPLoS ONE, 2016
During aging, systolic blood pressure continuously increases over time, whereas diastolic pressure first increases and then slightly decreases after middle age.
Elira Maksuti   +4 more
doaj   +1 more source

Validation of the Tricuspid Annular Plane Systolic Excursion/Systolic Pulmonary Artery Pressure Ratio for the Assessment of Right Ventricular-Arterial Coupling in Severe Pulmonary Hypertension.

open access: yesCirculation Cardiovascular Imaging, 2019
BACKGROUND The ratios of tricuspid annular plane systolic excursion (TAPSE)/echocardiographically measured systolic pulmonary artery pressure (PASP), fractional area change/invasively measured mean pulmonary artery pressure, right ventricular (RV) area ...
K. Tello   +12 more
semanticscholar   +1 more source

Neural regulation of cardiovascular response to exercise: role of central command and peripheral afferents [PDF]

open access: yes, 2014
During dynamic exercise, mechanisms controlling the cardiovascular apparatus operate to provide adequate oxygen to fulfill metabolic demand of exercising muscles and to guarantee metabolic end-products washout.
Crisafulli, A   +5 more
core   +4 more sources

Comparison of noninvasive continuous arterial blood pressure measured by NICAP with arterial line in elderly patients

open access: yesBMC Geriatrics, 2022
Background Non-Invasive Continuous Arterial Pressure system (NICAP) allows continuous monitoring, timely detection of hypotension, and avoiding risks from invasive procedures.
Zhao Xu   +7 more
doaj   +1 more source

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