Results 21 to 30 of about 13,767,586 (365)

Tilt testing results are influenced by tilt protocol [PDF]

open access: yesEuropace, 2015
It is unknown how the return to supine position influences duration of loss of consciousness (LOC) and cardioinhibition during tilt test.Retrospective analysis of two datasets containing records of patients who underwent tilt testing for unexplained syncope in two centres was performed.
Jerzy Rudnicki   +6 more
openaire   +4 more sources

An atrioventricular node model incorporating autonomic tone

open access: yesFrontiers in Physiology, 2022
The response to atrial fibrillation (AF) treatment is differing widely among patients, and a better understanding of the factors that contribute to these differences is needed. One important factor may be differences in the autonomic nervous system (ANS)
Felix Plappert   +5 more
doaj   +1 more source

Effect of Provocation by Sublingual Nitroglycerin on the Result of Tilt Table Test in Patients with Unexplained Syncope [PDF]

open access: yesInternational Journal of Medical Arts, 2023
Background: Patients with unexplained syncope should undergo the tilt table test, it is the only clinical laboratory test indicated to identify susceptibility to vasovagal fainting.The Aim of the work: To evaluate the effect of sublingual nitrates ...
Ali Elshafey   +3 more
doaj   +1 more source

Test-retest reliability of subjective visual vertical measurements with lateral head tilt in virtual reality goggles

open access: yesTzu Chi Medical Journal, 2021
Objective: The objective is to investigate the test-retest reliability of subjective visual vertical (SVV) in the upright position and with lateral head tilts through a computerized SVV measuring system using virtual reality (VR) goggles.
Chia-Han Wang   +4 more
doaj   +1 more source

Construction of an optical test-bed for eLISA [PDF]

open access: yes, 2016
In the planned eLISA mission a key part of the system is the optical bench that holds the interferometers for reading out the inter-spacecraft distance and the test mass position.
Danzmann, K.   +11 more
core   +3 more sources

Progressively invalidating orthostatic hypotension: A common symptom for a challenging diagnosis

open access: yesJournal of Research in Medical Sciences, 2016
We discuss here an uncommon condition of neurogenic hypotension in the context of immunoglobulin light chain (amyloid light-chain) amyloidosis. The most serious feature was autonomic nervous system impairment, mainly characterized by severe refractory ...
Serena Pelusi   +6 more
doaj   +1 more source

Underlying hemodynamic differences are associated with responses to tilt testing

open access: yesScientific Reports, 2021
Aim of this study was to explore whether differences in resting hemodynamic parameters may be associated with tilt test results in unexplained syncope. We analyzed age, gender, systolic (SBP), diastolic blood pressure (DBP) and heart rate (HR) by merging
Artur Fedorowski   +13 more
doaj   +1 more source

Entropy Measures in the Assessment of Heart Rate Variability in Patients with Cardiodepressive Vasovagal Syncope

open access: yesEntropy, 2015
Sample entropy (SampEn) was reported to be useful in the assessment of the complexity of heart rate dynamics. Permutation entropy (PermEn) is a new measure based on the concept of order and was previously shown to be accurate for short, non-stationary ...
Beata Graff   +7 more
doaj   +1 more source

Hyperoxia Improves Hemodynamic Status During Head-up Tilt Testing in Healthy Volunteers A Randomized Study [PDF]

open access: yes, 2016
International audienceHead-up tilt test is useful for exploring neurally mediated syncope. Adenosine is an ATP derivative implicated in cardiovascular disturbances that occur during head-up tilt test.
Boussuges, Alain   +9 more
core   +3 more sources

Comparison of short head-up tilt test with conventional protocol after omission of nonmedicated phase in children and young adults

open access: yesAdvanced Biomedical Research, 2016
Background: Syncope is an important and common clinical condition, and the neurally mediated syncope is the most frequent type of syncope. Tilt testing is considered as a first-line diagnostic test.
Bahar Dehghan, Mohammad Reza Sabri
doaj   +1 more source

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