Results 71 to 80 of about 125,897 (279)

Cerebral Oximetry in Syncope and Syndromes of Orthostatic Intolerance

open access: yesFrontiers 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   +13 more
doaj   +1 more source

Neurocirculatory Abnormalities in Chronic Orthostatic Intolerance [PDF]

open access: yesCirculation, 2005
Background— Chronic orthostatic intolerance (COI) occurs in postural tachycardia syndrome (POTS) and in some individuals with repeated neurocardiogenic syncope/presyncope (NCS), without POTS. This study addressed whether patients with COI and POTS or NCS have neurocirculatory abnormalities during ...
David S, Goldstein   +5 more
openaire   +2 more sources

A phenomap of TTR amyloidosis to aid diagnostic screening

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1113-1118, April 2025.
Abstract Cardiac amyloidosis due to transthyretin (ATTR) remains an underdiagnosed cause of cardiomyopathy. As awareness of the disease grows and referrals for ATTR increase, clinicians are likely to encounter more atypical forms of the condition in clinical practice.
Alexios S. Antonopoulos   +4 more
wiley   +1 more source

Sympathetic Shift and Insular Alteration: Unravelling the Link Between Anxiety and Heart Rate Variability in Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Anxiety and autonomic dysfunction are frequent non‐motor symptoms of Parkinson's disease (PD). Their relationship, as well as the neural mechanisms underlying this relationship, remain unexplored. Objectives We aimed to investigate the relationship between cardiovascular functions and anxiety in PD and the structural neural changes ...
Lucia Ricciardi   +9 more
wiley   +1 more source

Types of Pain in Multiple System Atrophy

open access: yesMovement Disorders, EarlyView.
Abstract Background Pain affects up to 87% of people with multiple system atrophy (MSA), but it remains unclear which types of pain contribute most to the overall burden. Objective To estimate the frequency of different types of pain in MSA individuals.
Nicole Campese   +19 more
wiley   +1 more source

Postural Tachycardia Syndrome: Beyond Orthostatic Intolerance [PDF]

open access: yesCurrent Neurology and Neuroscience Reports, 2015
Postural tachycardia syndrome (POTS) is a form of chronic orthostatic intolerance for which the hallmark physiological trait is an excessive increase in heart rate with assumption of upright posture. The orthostatic tachycardia occurs in the absence of orthostatic hypotension and is associated with a >6-month history of symptoms that are relieved by ...
Emily M, Garland   +2 more
openaire   +2 more sources

Cardiovascular Health in Women—Across the Lifespan

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Cardiovascular disease (CVD) remains the leading cause of mortality and morbidity among women worldwide. However, CVD continues to be perceived as a predominantly male issue. CVD in women therefore remains understudied, underrecognized and undertreated.
Jaya Chandrasekhar   +5 more
wiley   +1 more source

Reduced cardiovagal baroreflex sensitivity is associated with postural orthostatic tachycardia syndrome (POTS) and pain chronification in patients with headache

open access: yesFrontiers in Human Neuroscience, 2023
BackgroundNon-cephalgic symptoms including orthostatic intolerance, fatigue, and cognitive impairment, are common in patients with chronic headache disorders and may result from alterations in the autonomic nervous system.
Bridget R. Mueller   +3 more
doaj   +1 more source

Orthostatic hypertension: An underestimated cause of orthostatic intolerance

open access: yesClinical Neurophysiology, 2016
To investigate the frequency and mechanism of orthostatic hypertension (OHT) in patients with orthostatic intolerance.We retrospectively reviewed 1033 consecutive case series of orthostatic intolerance that underwent autonomic function tests including a head-up tilt test. OHT was defined as a paradoxical orthostatic increase in systolic blood pressure (
Hyung Lee, Hyun-Ah Kim
openaire   +3 more sources

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