Results 21 to 30 of about 125,897 (279)

Orthostatic Intolerance after COVID-19 Infection: Is Disturbed Microcirculation of the Vasa Vasorum of Capacitance Vessels the Primary Defect? [PDF]

Medicina (Kaunas), 2022
Following COVID-19 infection, a substantial proportion of patients suffer from persistent symptoms known as Long COVID. Among the main symptoms are fatigue, cognitive dysfunction, muscle weakness and orthostatic intolerance (OI).
Wirth KJ, Löhn M.
europepmc   +2 more sources

Interventions aimed to increase average 24-h systolic blood pressure reduce blood pressure drops in patients with reflex syncope and orthostatic intolerance. [PDF]

Europace
Aims Systolic blood pressure (SBP) drops recorded by 24-h ambulatory blood pressure (BP) monitoring (ABPM) identify patients with susceptibility to reflex syncope and orthostatic intolerance. We tested the hypothesis that treatments aimed to increase BP (
Groppelli A, Rivasi G, Fedorowski A, de Lange FJ, Russo V, Maggi R, Capacci M, Nawaz S, Comune A, Bianchi L, Zambon A, Soranna D, Ungar A, Parati G, Brignole M.   +14 more
europepmc   +2 more sources

Head-Up Tilt Sleeping to Treat Orthostatic Intolerance in a Patient with Advanced Parkinson’s Disease: A Case Report [PDF]

Case Reports in Neurology
Introduction: Orthostatic hypotension is common in people with Parkinson’s disease (PD) due to autonomic dysfunction and medication use and can have a significant negative impact on quality of life.
Amber H. van der Stam, Sharon Shmuely, Nienke M. de Vries, Roland D. Thijs, Mirjam van Kesteren-Biegstraaten, Bastiaan R. Bloem   +5 more
doaj   +2 more sources

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 ...
Raffaello Furlan, Giris Jacob, Marie Snell, David L. Robertson, Alberto Porta, Paul A. Harris, Rogelio Mosqueda‐Garcia   +6 more
openalex   +4 more sources

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

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

Normative data for the 10-min lean test in adults without orthostatic intolerance [PDF]

Frontiers in Neurology
BackgroundOrthostatic intolerance syndromes such as Orthostatic Hypotension (OH) and Postural Orthostatic Tachycardia Syndrome (PoTS) are common symptoms seen in post-infection conditions and other neurological conditions with autonomic dysfunction.
Nafi Iftekhar, Nafi Iftekhar, Amy Wilson, Louis Nguty, Hussain Al-Hilali, Yusur Al-Hilali, Kinshuk Jain, Angela Braka, Thomas Osborne, Manoj Sivan   +9 more
doaj   +2 more sources

Common Syndromes of Orthostatic Intolerance [PDF]

Pediatrics, 2013
The autonomic nervous system, adequate blood volume, and intact skeletal and respiratory muscle pumps are essential components for rapid cardiovascular adjustments to upright posture (orthostasis). Patients lacking sufficient blood volume or having defective sympathetic adrenergic vasoconstriction develop orthostatic hypotension (OH), prohibiting ...
Julian M. Stewart
openalex   +3 more sources

Orthostatic intolerance and presyncopal states in young adults

Journal of Education, Health and Sport
Introduction and purpose: Orthostatic intolerance is an increasingly recognized disturbance of circulatory regulation in young adults, particularly in academic settings where characteristic lifestyle patterns promote autonomic imbalance. The aim of this
Michał Karol, Kamila Koseska, Jan Borowicz, Bartosz Górecki, Kinga Kloch, Patryk Romaniuk, Mariia-Khrystyna Lohin, Aleksandra Strawińska, Małgorzata Bednarczyk   +8 more
doaj   +3 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