Results 31 to 40 of about 171,293 (296)

Entropy in Investigation of Vasovagal Syndrome in Passive Head Up Tilt Test

open access: yesEntropy, 2017
This paper presents an application of Approximate Entropy (ApEn) and Sample Entropy (SampEn) in the analysis of heart rhythm, blood pressure and stroke volume for the diagnosis of vasovagal syndrome.
Katarzyna Buszko   +3 more
doaj   +1 more source

Autonomic dysfunction after mild acute ischemic stroke and six months after: a prospective observational cohort study

open access: yesBMC Neurology, 2023
Introduction Autonomic dysfunction is prevalent in ischemic stroke patients and associated with a worse clinical outcome. We aimed to evaluate autonomic dysfunction over time and the tolerability of the head-up tilt table test in an acute stroke setting ...
Mathias Damkjær   +6 more
doaj   +1 more source

Head-up tilt test with clomipramine challenge in vasovagal syndrome—a new tilt testing protocol [PDF]

open access: yesEuropean Heart Journal, 2003
The aim of the study was to randomly compare clomipramine, used as a challenge-agent during head-up tilt test, with isoproterenol, used in the conventional test, in patients with vasovagal syndrome.The serotonergic re-uptake inhibitor clomipramine was infused (5mg in 5min) at the start of head-up tilt test (Clom-HUT) in 126 patients (mean age 41+/-16 ...
Theodorakis, GN   +5 more
openaire   +3 more sources

Head-up tilt test diagnostic yield in syncope diagnosis

open access: yesJournal of Electrocardiology, 2020
The European Syncope Guidelines (ESG) recommend the use of Head-up tilt test (HUT) in case of suspicion of vasovagal syncope (VVS) or orthostatic hypotensive syncope (OHS) after an adequate initial inconclusive evaluation. We report a single center experience in the scenario of suspected VVS or OHS, who underwent HUT in patients referred to a Syncope ...
Barón Esquivias, G.   +5 more
openaire   +3 more sources

Influence of passive leg movements on blood circulation on the tilt table in healthy adults

open access: yesJournal of NeuroEngineering and Rehabilitation, 2004
Background One problem in the mobilization of patients with neurological diseases, such as spinal cord injury, is the circulatory collapse that occurs while changing from supine to vertical position because of the missing venous pump due to paralyzed leg
Czell David   +5 more
doaj   +1 more source

Effects of Gravity and Non-Perpendicularity during Powder-Fed Directed Energy Deposition of Ni-Based Alloy 718 through Two Types of Coaxial Nozzle [PDF]

open access: yes, 2020
The consequences of gravity and the nozzle inclination angle in the powder-fed Directed Energy Deposition (DED) process were examined in this study.
Alberdi, Amaia   +3 more
core   +2 more sources

Transfer Information Assessment in Diagnosis of Vasovagal Syncope Using Transfer Entropy

open access: yesEntropy, 2019
The paper presents an application of Transfer Entropy (TE) to the analysis of information transfer between biosignals (heart rate expressed as R-R intervals (RRI), blood pressure (sBP, dBP) and stroke volume (SV)) measured during head up tilt testing ...
Katarzyna Buszko   +4 more
doaj   +1 more source

Neurologic Deficits Including Auditory Loss and Recovery of Function in Horses with Temporohyoid Osteoarthropathy. [PDF]

open access: yes, 2015
BackgroundAuditory loss is a common deficit in horses with temporohyoid osteoarthropathy (THO), however, recovery of function is unknown.Hypothesis/objectivesTo investigate neurologic function with emphasis in audition in horses with THO after treatment.
Aleman, M   +3 more
core   +2 more sources

Reduced systemic vascular resistance is the underlying hemodynamic mechanism in nitrate-stimulated vasovagal syncope during head-up tilt-table test

open access: yesJournal of Arrhythmia, 2015
Background: Nitroglycerin (NTG) challenge during head-up tilt-table testing (HUTT) is often utilized to determine the etiology of unexplained vascular syncope.
Byung Gyu Kim, MD   +7 more
doaj   +1 more source

Multi-sensor system using plastic optical fibers for intrinsically safe level measurements [PDF]

open access: yes, 2004
A system for measuring liquid level in multiple tanks using optical fibe technology has been developed. Oil fiel service industry or any sector requiring liquid level measurements in flammabl atmospheres can be benefite from this intrinsically safe ...
Gonzalo, Ana B.   +3 more
core   +3 more sources

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