Results 31 to 40 of about 16,320 (239)
Reduced heart rate variability predicts fatigue severity in individuals with chronic fatigue syndrome/myalgic encephalomyelitis [PDF]
, 2020 Heart rate variability (HRV) is an objective, non-invasive tool to assessing autonomic dysfunction in chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME).
Capdevila, Lluis +3 more
core +2 more sources
Orthostatic symptoms does not always manifest during tilt-table test in pediatric postural orthostatic tachycardia syndrome patients [PDF]
Korean Journal of Pediatrics, 2013 PurposeChronic day-to-day symptoms of orthostatic intolerance are the most notable features of postural orthostatic tachycardia syndrome (POTS). However, we have encountered patients with such symptoms and excessive tachycardia but with no symptoms ...
Tae-Eon Huh +10 more
doaj +1 more source
Orthostatic Hypertension in Children: An Update
Frontiers in Pediatrics, 2020 The concept of orthostatic hypertension in children was first proposed in 2012. The pathogenesis is not clear by now. Orthostatic hypertension is one of the important causes of orthostatic intolerance in children and is related to the development of ...
Yang Hu +4 more
doaj +1 more source
Российский кардиологический журнал, 2022 Aim. To assess hemodynamic response to active standing test (AST) with beat-to-beat blood pressure (BP) monitoring, their association with office BP and symptoms of orthostatic intolerance in patients with heart failure (HF).Material and methods ...
D. N. Fedorova +6 more
doaj +1 more source
Postsynaptic α1-Adrenergic vasoconstriction is impaired in young patients with vasovagal syncope and is corrected by nitric oxide synthase inhibition [PDF]
, 2016 BACKGROUND: Syncope is a sudden transient loss of consciousness and postural tone with spontaneous recovery; the most common form is vasovagal syncope (VVS).
Medow, MS +6 more
core +1 more source
Annals of Clinical and Translational Neurology, 2022 Background The association between autonomic dysfunction and long‐COVID syndrome is established. However, the prevalence and patterns of symptoms of dysautonomia in long‐COVID syndrome in a large population are lacking.
Ahmed M. Eldokla +9 more
doaj +1 more source
Post-exercise Body Cooling: Skin Blood Flow, Venous Pooling, and Orthostatic Intolerance
Frontiers in Sports and Active Living, 2021 Athletes and certain occupations (e.g., military, firefighters) must navigate unique heat challenges as they perform physical tasks during prolonged heat stress, at times while wearing protective clothing that hinders heat dissipation.
Afton D. Seeley +4 more
doaj +1 more source
Pediatric Disorders of Orthostatic Intolerance [PDF]
Pediatrics, 2018 Orthostatic intolerance (OI), having difficulty tolerating an upright posture because of symptoms or signs that abate when returned to supine, is common in pediatrics. For example, ∼40% of people faint during their lives, half of whom faint during adolescence, and the peak age for first faint is 15 years.
Julian M, Stewart +13 more
openaire +2 more sources
Sympathetic dysfunction in vasovagal syncope and the postural orthostatic tachycardia syndrome
Frontiers in Physiology, 2014 Orthostatic intolerance is the inability to tolerate the upright posture and is relieved by recumbence. It most commonly affects young women and has a major impact on quality of life and psychosocial well being.
Elisabeth eLambert, Gavin W Lambert
doaj +1 more source
Orthostatic intolerance after space flight [PDF]
The Journal of Physiology, 2002 Physiologists have always been challenged by the adjustments of the human body to hostile environments. The set of papers in this issue of The Journal of Physiology (Cox et al. 2002; Ertl et al. 2002; Levine et al. 2002) fits into the tradition of the study of human responses to extreme physical circumstances.
Wieling, Wouter +2 more
openaire +2 more sources