Cerebral Blood Flow in Orthostatic Intolerance by Muhammad Shahzeb Khan, Amanda J. Miller, Arooba Ejaz, Jeroen Molinger, Parag Goyal, David B. MacLeod, Ashley Swavely, Elyse Wilson, Meghan Pergola, Harikrishna Tandri, Camille Frazier Mills, Satish R Raj, Marat Fudim

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Cerebral Oximetry in Syncope and Syndromes of Orthostatic Intolerance by 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

“…In recent years, the importance of cerebral oxygenation in syncope and orthostatic intolerance (OI) has received increased attention. …”
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Computational modeling of orthostatic intolerance for travel to Mars by Lex M. van Loon, Anne Steins, Klaus-Martin Schulte, Russell Gruen, Emma M. Tucker

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Orthostatic Intolerance in Older Persons: Etiology and Countermeasures by Nandu Goswami, Andrew P. Blaber, Helmut Hinghofer-Szalkay, Jean-Pierre Montani

“…This review outlines orthostatic intolerance related to the aging process, long-term bedrest confinement, drugs, and disease. …”
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Editorial: Brain, nutrients, and behavior in orthostatic intolerance by Kenichi Yamada, Kenichi Yamada

Subjects: “…orthostatic intolerance…”
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Hypocapnic cerebral hypoperfusion: A biomarker of orthostatic intolerance. by Peter Novak

“…The objective of the study was to identify markers of hypocapnic cerebral hypoperfusion (HYCH) in patients with orthostatic intolerance (OI) without tachycardia and without orthostatic hypotension. …”
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Physiological assessment of orthostatic intolerance in chronic fatigue syndrome by Benjamin H. Natelson, Jin-Mann S. Lin, Michelle Blate, Sarah Khan, Yang Chen, Elizabeth R. Unger

“…Abstract Background Orthostatic intolerance-OI is common in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome-ME/CFS. …”
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Correction: Utility of Corrected QT Interval in Orthostatic Intolerance.

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Clinical Prognostic Factors in Pediatric Patients With Orthostatic Intolerance by Kazue Ishitsuka MD, MPH, PhD, Kaori Yamawaki MD, Miwako Horikawa MD, Hisaya Nakadate MD, PhD, Akira Nagai MD, PhD, Akira Ishiguro MD, PhD

“…Midodrine is widely used for orthostatic intolerance (OI); however, little is known about the prognostic factors of OI after midodrine treatment. …”
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Association of blood pressure variability with orthostatic intolerance symptoms. by Jun-Sang Sunwoo, Tae-Won Yang, Do-Yong Kim, Jung-Ah Lim, Tae-Joon Kim, Jung-Ick Byun, Jangsup Moon, Soon-Tae Lee, Keun-Hwa Jung, Kyung-Il Park, Ki-Young Jung, Manho Kim, Sang Kun Lee, Kon Chu

“…However, the influence of BPV in orthostatic intolerance (OI) is unknown. Herein, we assessed BPV profiles in patients with OI and determined their association with orthostatic symptoms. …”
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Predictive analysis of catecholamines and electrolytes for recurrence of orthostatic intolerance in children by Lujie Chang, Lu Peng, Jianglin Liu, Minmin Wang, Meng Li, Qingyu Kong, Haizhao Zhao, Cuifen Zhao

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Quality of life and physical/psychosocial factors in children and adolescents with orthostatic intolerance by Yoshie Shigeyasu, Ayumi Okada, Chikako Fujii, Chie Tanaka, Akiko Sugihara, Makiko Horiuchi, Takashi Yorifuji, Hirokazu Tsukahara

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Clinical and endocrine features of orthostatic intolerance detected in patients with long COVID by Atsushi Kato, Kazuki Tokumasu, Koichiro Yamamoto, Yuki Otsuka, Yasuhiro Nakano, Hiroyuki Honda, Naruhiko Sunada, Yasue Sakurada, Yui Matsuda, Toru Hasegawa, Ryosuke Takase, Keigo Ueda, Fumio Otsuka

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How to Care for Adolescent Patients With Orthostatic Intolerance in the Primary Care Office by Camden Hebson, Kelly Muterspaw, Alexander Kuo, Polly Borasino, Khalisa Syeda, Toren Anderson

“…Orthostatic intolerance (and its subtype postural orthostatic tachycardia syndrome [POTS]) is an increasingly common complaint among adolescents associated with significant decrease in quality of life and frequent visits to primary care offices. …”
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Intracranial compliance is associated with symptoms of orthostatic intolerance in chronic fatigue syndrome. by Andreas Finkelmeyer, Jiabao He, Laura Maclachlan, Andrew M Blamire, Julia L Newton

“…Symptoms of orthostatic intolerance (OI) are common in Chronic Fatigue Syndrome (CFS) and similar disorders. …”
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Plasma metabolomic profile in orthostatic intolerance children with high levels of plasma homocysteine by Yaqi Li, Baoling Bai, Hui Wang, Haojie Wu, Yanjun Deng, Chen Shen, Qin Zhang, Lin Shi

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Classical and Delayed Orthostatic Hypotension in Patients With Unexplained Syncope and Severe Orthostatic Intolerance by Parisa Torabi, Parisa Torabi, Fabrizio Ricci, Fabrizio Ricci, Viktor Hamrefors, Viktor Hamrefors, Richard Sutton, Richard Sutton, Artur Fedorowski, Artur Fedorowski

“…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 differences between the two variants are not well-studied. …”
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Cardiovascular and Cutaneous Responses to the Combination of Alcohol and Soft Drinks: The Way to Orthostatic Intolerance? by Claire Maufrais, Nathalie Charriere, Jean-Pierre Montani

“…The full hemodynamic and cutaneous responses to the combination of alcohol and sugar (i.e., alcopops), a common combination in young people, and the mechanisms for the propensity to orthostatic intolerance are not well established. Thus, the purpose of this study was to evaluate the cardiovascular and cutaneous responses to alcopops in young subjects.Methods: Cardiovascular and cutaneous responses were assessed in 24 healthy young subjects (12 men, 12 women) sitting comfortably and during prolonged active standing with a 30-min baseline and 130 min following ingestion of 400 mL of either: water, water + 48 g sugar, water + vodka (1.28 mL.kg−1 of body weight, providing 0.4 g alcohol.kg−1), water + sugar + vodka, according to a randomized cross-over design.Results: Compared to alcohol alone, vodka + sugar induced a lower breath alcohol concentration (BrAC), blood pressure and total peripheral resistance (p < 0.05), a higher cardiac output and heart rate (p < 0.05) both in sitting position and during active standing. …”
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Validation of the Chinese orthostatic discriminant and Severity Scale (ODSS) for detection of orthostatic intolerance syndrome by Weiting Tang, Hui Gu, Bin Chen, Sheng Hu, Wenjie Fan, Yong You

Subjects: “…Orthostatic intolerance…”
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Orthostatic intolerance as a potential contributor to prolonged fatigue and inconsistent performance in elite swimmers by Lindsay S. Petracek, Ella F. Eastin, Ian R. Rowe, Peter C. Rowe

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