Results 11 to 20 of about 15,908 (215)

Plasma metabolomic profile in orthostatic intolerance children with high levels of plasma homocysteine [PDF]

Italian Journal of Pediatrics
Background Orthostatic intolerance, which includes vasovagal syncope and postural orthostatic tachycardia syndrome, is common in children and adolescents.
Yaqi Li, Baoling Bai, Hui Wang, Haojie Wu, Yanjun Deng, Chen Shen, Qin Zhang, Lin Shi   +7 more
doaj   +2 more sources

Circulating Autoantibodies Against Vasoactive Biomarkers Related to Orthostatic Intolerance in Long COVID Patients Compared to No-Long-COVID Populations: A Case-Control Study [PDF]

Biomolecules
Endothelial dysfunction mediated by elevated levels of autoantibodies against vasoactive peptides occurring after COVID-19 infection is proposed as a possible pathomechanism for orthostatic intolerance in long COVID patients.
Emilie Han, Katrin Müller-Zlabinger, Ena Hasimbegovic, Laura Poschenreithner, Nina Kastner, Babette Maleiner, Kevin Hamzaraj, Andreas Spannbauer, Martin Riesenhuber, Anja Vavrikova, Antonia Domanig, Christian Nitsche, Dominika Lukovic, Thomas A. Zelniker, Mariann Gyöngyösi   +14 more
doaj   +2 more sources

Validation of the Chinese orthostatic discriminant and Severity Scale (ODSS) for detection of orthostatic intolerance syndrome [PDF]

Heliyon
Background: Orthostatic intolerance (OI) is the inability to tolerate orthostatic stress during any postural change. The etiology of OI varies, and methods to obtain a specific diagnosis and plan appropriate treatment are important.
Weiting Tang, Hui Gu, Bin Chen, Sheng Hu, Wenjie Fan, Yong You   +5 more
doaj   +2 more sources

Orthostatic hypertension: An underestimated cause of orthostatic intolerance

Clinical Neurophysiology, 2016
To investigate the frequency and mechanism of orthostatic hypertension (OHT) in patients with orthostatic intolerance.We retrospectively reviewed 1033 consecutive case series of orthostatic intolerance that underwent autonomic function tests including a head-up tilt test. OHT was defined as a paradoxical orthostatic increase in systolic blood pressure (
Hyung Lee, Hyun-Ah Kim
openaire   +5 more sources

The Clinical Utility of Assessing Orthostatic Intolerance in Adolescents with Sport-Related Concussion, a Retrospective Study [PDF]

Diagnostics
Background/Objective: Assessing Orthostatic Intolerance (OI, symptoms upon standing from supine) is recommended in athletes with sport-related concussions (SRCs), as this is caused by impairments in the cardiovascular autonomic nervous system (cANS ...
Mohammad N. Haider, Jule Deren, Karim Khaled, Cathlyn Corrado, Haley M. Chizuk, Jeffrey C. Miecznikowski, John J. Leddy   +6 more
doaj   +2 more sources

Postoperative orthostatic intolerance following fast-track unicompartmental knee arthroplasty: incidence and hemodynamics—a prospective observational cohort study [PDF]

Journal of Orthopaedic Surgery and Research
Background Early postoperative mobilization is essential for early functional recovery but can be inhibited by postoperative orthostatic intolerance (OI). Postoperative OI is common after major surgery, such as total knee arthroplasty (TKA).
Ana-Marija Hristovska, Louise B. Andersen, Bodil Uldall-Hansen, Henrik Kehlet, Anders Troelsen, Kirill Gromov, Nicolai B. Foss   +6 more
doaj   +2 more sources

Orthostatic intolerance in chronic fatigue syndrome

Journal of Translational Medicine, 2019
Background Orthostatic intolerance (OI) is a significant problem for those with chronic fatigue syndrome (CFS). We aimed to characterize orthostatic intolerance in CFS and to study the effects of exercise on OI.
Richard Garner, James N. Baraniuk
doaj   +3 more sources

Classical and Delayed Orthostatic Hypotension in Patients With Unexplained Syncope and Severe Orthostatic Intolerance

Frontiers in Cardiovascular Medicine, 2020
Background: Orthostatic hypotension (OH) is a major sign of cardiovascular autonomic failure leading to orthostatic intolerance and syncope. Orthostatic hypotension is traditionally divided into classical OH (cOH) and delayed OH (dOH), but the ...
Parisa Torabi, Parisa Torabi, Fabrizio Ricci, Fabrizio Ricci, Viktor Hamrefors, Viktor Hamrefors, Richard Sutton, Richard Sutton, Artur Fedorowski, Artur Fedorowski   +9 more
doaj   +3 more sources

Initial orthostatic hypotension and orthostatic intolerance symptom prevalence in older adults: A systematic review

International Journal of Cardiology. Hypertension, 2021
Background: Initial orthostatic hypotension is a clinically relevant syndrome in older adults which has been associated with symptoms of orthostatic intolerance. The aim of this systematic review was to determine the prevalence of orthostatic intolerance
Elena M. Christopoulos, Jennifer Tran, Sarah L. Hillebrand, Peter W. Lange, Rebecca K. Iseli, Carel G.M. Meskers, Andrea B. Maier   +6 more
doaj   +1 more source

Prevalence and associated factors of postoperative orthostatic intolerance at University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia, 2022: cross sectional study

BMC Surgery, 2023
Background Postoperative orthostatic intolerance is an inability to maintain an upright position because of symptoms of cerebral hypoperfusion. It is a common problem in the early postoperative period and hinders early mobilization, however, there is ...
Negesse Zurbachew Gobezie, Nigussie Simeneh Endalew, Hailu Yimer Tawuye, Habtu Adane Aytolign   +3 more
doaj   +1 more source