Results 21 to 30 of about 1,633 (249)

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

Entropy, 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, Agnieszka Piątkowska, Edward Koźluk, Grzegorz Opolski   +3 more
doaj   +1 more source

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

BMC 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, Sofie Amalie Simonsen, Adam Vittrup Heiberg, Jesper Mehlsen, Anders Sode West, Poul Jennum, Helle Klingenberg Iversen   +6 more
doaj   +1 more source

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

Journal 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, Schreier Reinhard, Rupp Rüdiger, Eberhard Stephen, Colombo Gery, Dietz Volker   +5 more
doaj   +1 more source

The Relationship Between Unexplained Chest Pain in Children and Head-Up Tilt Test

Frontiers in Pediatrics, 2022
BackgroundTo explore the relationship between unexplained chest pain in children and head-up tilt test (HUTT).Materials and MethodsA total of 825 children with the main symptom of unexplained chest pain were admitted to the Specialist Outpatient Clinic ...
Ying Wang, Ying Wang, Shuo Wang, Runmei Zou, Siyang Chen, Fang Li, Yuwen Wang, Yi Xu, Cheng Wang   +8 more
doaj   +1 more source

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

, 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.
Joulia, Fabrice, Fromonot, Julien, Rostain, Jean-Claude, Guieu, Régis, Gavarry, Olivier, Lucciano, Michel, Chaumet, Guillaume, Deharo, Jean-Claude, Brignole, Michele, Boussuges, Alain   +9 more
core   +1 more source

Transfer Information Assessment in Diagnosis of Vasovagal Syncope Using Transfer Entropy

Entropy, 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, Agnieszka Piątkowska, Edward Koźluk, Tomasz Fabiszak, Grzegorz Opolski   +4 more
doaj   +1 more source

Reproducibility of head‐up tilt test in patients with syncope

Clinical Cardiology, 1996
AbstractAs the head‐up tilt test (HUT) is employed to verify the efficacy of undertaking a treatment, we prospectively evaluated the reproducibility of positive and negative results, as well as that of the response type in 64 consecutive patients (mean age 34.6 ± 22.9 years) with syncope of unknown cause.
G A, Ruiz, J, Scaglione, J, González-Zuelgaray   +2 more
openaire   +2 more sources

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

Journal 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, Sung Woo Cho, MD, Hye Young Lee, MD, Deok Hee Kim, MD, Young Sup Byun, MD, Choong Won Goh, MD, Kun Joo Rhee, MD, Byung Ok Kim, MD   +7 more
doaj   +1 more source

Application of Head-up Tilt Table Testing in Children

Journal of the Formosan Medical Association, 2010
We investigated the application of head-up tilt table testing (HUT) and management of neurocardiogenic syncope (NCS) in children, as pediatric studies are limited.Seventy-nine patients (ages 6-18 years) underwent HUT for evaluation of syncope. Patient triggers and premonitory symptoms allowed the clinical diagnosis of NCS or non-NCS.
Wei-Ting Lai, Ming-Ren Chen, Shan-Miao Lin, Haw-Kwei Hwang   +3 more
openaire   +3 more sources

Diagnosis and Treatment of Syncope

Journal of Arrhythmia, 2006
Accurate diagnosis of syncope is essential because it ranges from cardiac syncope with a very poor prognosis to neurally-mediated syncope (NMS) with a relatively favorable prognosis.
Youichi Kobayashi, MD
doaj   +1 more source