Results 21 to 30 of about 89,050 (201)

Chronic Orthostatic Intolerance [PDF]

Circulation, 1998
Chronic orthostatic intolerance (COI, also known as postural orthostatic tachycardia syndrome) is a disorder that most frequently affects young women (female-to-male ratio, 4:1).1 Presenting symptoms include lightheadedness, palpitations, fatigue, blurred vision, dizziness, exercise intolerance, chest discomfort, cognitive impairment, and occasionally ...
Krzysztof Narkiewicz, Virend K Somers, V K Somers   +2 more
exaly   +3 more sources

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, Jeffrey R, Boris, Gisela, Chelimsky, Phillip R, Fischer, John E, Fortunato, Blair P, Grubb, Geoffrey L, Heyer, Imad T, Jarjour, Marvin S, Medow, Mohammed T, Numan, Paolo T, Pianosi, Wolfgang, Singer, Sally, Tarbell, Thomas C, Chelimsky   +13 more
openaire   +3 more sources

Postural tachycardia during head-up tilt test predicts persistent orthostatic intolerance in young adults

Zdravniški Vestnik, 2013
Background: Head-up tilt (HUT) test is an important tool in establishing the cause of past syncope. As postural tachycardia is associated with orthostatic intolerance, we hypothesise that heart rate (HR) increase during the early phase of HUT can be used
Mojca Kirbiš, Fajko F. Bajrović, Mojca Čižek Sajko, Bernard Meglič, Anton Grad   +4 more
doaj   +1 more source

Impact of Daily Lower‐Body Negative Pressure or Cycling Followed by Venous Constrictive Thigh Cuffs on Bedrest‐Induced Orthostatic Intolerance [PDF]

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Orthostatic intolerance occurs following immobilization in patients on Earth and in astronauts after spaceflight. Head‐down tilt bedrest is a terrestrial model for weightlessness and induces orthostatic intolerance.
Jan‐Niklas Hönemann, Fabian Hoffmann, Laura de Boni, Peter Gauger, Edwin Mulder, Stefan Möstl, Karsten Heusser, Marie‐Therese Schmitz, Marcel Halbach, Steven S. Laurie, Stuart M. C. Lee, Brandon R. Macias, Jens Jordan, Jens Tank   +13 more
doaj   +2 more sources

Cerebral Oximetry in Syncope and Syndromes of Orthostatic Intolerance [PDF]

Frontiers in Cardiovascular Medicine, 2019
Cerebral autoregulation is crucial for maintaining cerebral blood flow and perfusion. In recent years, the importance of cerebral oxygenation in syncope and orthostatic intolerance (OI) has received increased attention. Cerebral tissue oxygenation can be
Isabella Kharraziha, Isabella Kharraziha, Hannes Holm, Hannes Holm, Erasmus Bachus, Fabrizio Ricci, Fabrizio Ricci, Fabrizio Ricci, Richard Sutton, Richard Sutton, Artur Fedorowski, Artur Fedorowski, Viktor Hamrefors, Viktor Hamrefors   +13 more
doaj   +2 more sources

Autoimmunity in Syndromes of Orthostatic Intolerance: An Updated Review. [PDF]

J Pers Med
Orthostatic intolerance is a broad term that represents a spectrum of dysautonomic disorders, including postural orthostatic tachycardia syndrome (POTS) and orthostatic hypotension (OH), as manifestations of severe autonomic failure.
Pena C, Moustafa A, Mohamed AR, Grubb B.
europepmc   +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, Jung Sook Yeom, Young-Soo Kim, Hyang-Ok Woo, Ji Sook Park, Eun Sil Park, Ji-Hyun Seo, Jae-Young Lim, Chan-Hoo Park, Ki-Jong Park, Hee-Shang Youn   +10 more
doaj   +1 more source

Case report: Recurrent cervical spinal stenosis masquerading as myalgic encephalomyelitis/chronic fatigue syndrome with orthostatic intolerance

Frontiers in Neurology, 2023
IntroductionMyalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex, chronic, multi-system disorder that is characterized by a substantial impairment in the activities that were well tolerated before the illness. In an earlier report, we
Charles C. Edwards, Charles C. Edwards, Scott Heinlein, Peter C. Rowe   +3 more
doaj   +1 more source

Frequency of hemodynamic response to orthostatic stress in heart failure with reduced ejection fraction, associations with clinical blood pressure

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, A. E. Soloveva, M. Fudim, V. L. Galenko, A. V. Kozlenok, A. V. Berezina, S. V. Villevalde   +6 more
doaj   +1 more source

Deconditioning in patients with orthostatic intolerance [PDF]

Neurology, 2012
To study the frequency and degree of deconditioning, clinical features, and relationship between deconditioning and autonomic parameters in patients with orthostatic intolerance.We retrospectively studied all patients seen for orthostatic intolerance at Mayo Clinic between January 2006 and June 2011, who underwent both standardized autonomic and ...
Ajay, Parsaik, Thomas G, Allison, Wolfgang, Singer, David M, Sletten, Michael J, Joyner, Eduardo E, Benarroch, Phillip A, Low, Paola, Sandroni   +7 more
openaire   +2 more sources