Results 81 to 90 of about 139,613 (197)

Meta‐Analysis: Chronic Gastrointestinal Symptoms and Comorbidities in Hypermobile Ehlers–Danlos Syndrome and Hypermobility Spectrum Disorders

open access: yesAlimentary Pharmacology &Therapeutics, Volume 64, Issue 5, Page 574-589, September 2026.
This meta‐analysis reveals that a significant proportion of patients with hEDS/HSD experience gastrointestinal symptoms. The most prevalent symptoms include heartburn, abdominal pain, constipation, and nausea. There is a notable overlap of hEDS/HSD with chronic fatigue, DGBI, GERD, migraine, and orthostatic intolerance.
Dmitrii Kulin   +9 more
wiley   +1 more source

Frequency and characteristics of multi‐domain autonomic dysfunction in patients with spontaneous intracranial hypotension

open access: yesHeadache: The Journal of Head and Face Pain, Volume 66, Issue 8, Page 1890-1897, September 2026.
Plain Language Summary Spontaneous intracranial hypotension (SIH) is caused by leakage of cerebrospinal fluid and often produces symptoms that worsen when standing, which may resemble autonomic disorders (conditions related to blood flow and heart rate).
Woo‐Seok Ha   +4 more
wiley   +1 more source

Reduced Stroke Volume and Brain Perfusion Drive Postural Hyperventilation in Postural Orthostatic Tachycardia Syndrome

open access: yesJACC: Basic to Translational Science
Summary: Postural hyperventilation has been implicated as a cause of postural orthostatic tachycardia syndrome (POTS), yet the precise mechanisms underlying the heightened breathing response remain unclear.
Jacquie R. Baker, PhD   +7 more
doaj   +1 more source

Cardiac Origins of the Postural Orthostatic Tachycardia Syndrome

open access: yesJournal of the American College of Cardiology, 2010
The purpose of this study was to test the hypothesis that a small heart coupled with reduced blood volume contributes to the postural orthostatic tachycardia syndrome (POTS) and that exercise training improves this syndrome.Patients with POTS have marked increases in heart rate during orthostasis.
Fu, Qi   +7 more
openaire   +2 more sources

POSTURAL ORTHOSTATIC TACHYCARDIA SYNDROME IN PATIENTS WITH TEMPORAL LOBE EPILEPSY

open access: yes, 2020
The temporal epilepsy is generally associated to cardiac dysautonomia. Thus recognition of such syndrome in epileptic patients is a crucial step for offering the appropriate therapy.

core  

Postural orthostatic tachycardia syndrome in children and adolescents [PDF]

open access: yesAutonomic Neuroscience, 2018
Postural orthostatic tachycardia syndrome (POTS) affects up to 3,000,000 people in the United States, with at least one-third of them developing POTS before the age of 18. POTS as a disorder is similar in adult and pediatric populations, but there are factors specific to pediatric patients that affect how it presents and how it is experienced that make
openaire   +2 more sources

Postural Orthostatic Tachycardia Syndrome in COVID-19: A Contemporary Review of Mechanisms, Clinical Course and Management

open access: yes, 2023
Bharat Narasimhan,1 Arundhati Calambur,2 Errol Moras,3 Lingling Wu,4 Wilbert Aronow5 1Department of Cardiology, Debakey Cardiovascular Institute, Houston Methodist, Houston, TX, USA; 2University of California San Diego, La Jolla, CA, USA; 3Department of ...
Aronow W   +4 more
core  

Perioperative care of an adolescent with postural orthostatic tachycardia syndrome

open access: yesSaudi Journal of Anaesthesia, 2010
Postural orthostatic tachycardia syndrome (POTS) is a disorder characterized by postural tachycardia in combination with orthostatic symptoms without associated hypotension. Symptoms include light-headedness, palpitations, fatigue, confusion, and anxiety,
Kernan Scott, Tobias Joseph
doaj  

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

open access: yesZdravniški 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   +4 more
doaj  

Self‐Induced Stretch Syncope: An Underrecognized Condition

open access: yes
Annals of the Child Neurology Society, Volume 4, Issue 3, Page 242-243, September 2026.
Samia M. Khan, Vandana J. Vedanarayanan
wiley   +1 more source

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