Results 101 to 110 of about 1,141,544 (200)

Avances en síncope vasovagal: De la genética a la clínica

open access: yes, 2023
Estudios recientes sugieren que el síncope vasovagal tiene un componente familiar significativo, lo que sugiere que cuando menos algunas formas puedan tener una causa genética.
González Hermosillo, J. Antonio
core  

Vasovagal Syncope Treated as Epilepsy for 16 Years [PDF]

open access: yes, 2011
The differentiation of vasovagal syncope and epileptic seizure is sometimes problematic, since vasovagal syncope may mimic epileptic seizures in many ways.
Ehsan Yaghoubi   +5 more
core   +2 more sources

Mechanisms of tilt‐induced vasovagal syncope in healthy volunteers and postural tachycardia syndrome patients without past history of syncope

open access: yesPhysiological Reports, 2019
Upright tilt table testing has been used to test for vasovagal syncope (VVS) but can result in “false positives” in which tilt‐induced fainting (tilt+) occurs in the absence of real‐world fainting.
Julian M. Stewart   +6 more
doaj   +1 more source

A influência do exercício físico nos parâmetros de média e da variabilidade da pressão arterial e nos sintomas dos pacientes com síncope vasovagal

open access: yes, 2017
The vasovagal syncope is the main cause of loss of consciousness and postural tone. Exercise improves symptoms, but the effects on the blood pressure need to be further clarified.
Gregorio Junior, Antonio
core  

Decreasing cerebral oxygen consumption during upright tilt in vasovagal syncope

open access: yesPhysiological Reports, 2017
We measured changes in transcranial Doppler ultrasound (TCD) and near infrared spectroscopy (NIRS) during 70° upright tilt in patients with recurrent vasovagal syncope (VVS, N = 20), postural tachycardia syndrome (POTS, N = 20), and healthy controls (N = 
Marvin S. Medow   +5 more
doaj   +1 more source

Down syndrome and parity.

open access: yes, 1999
OBJECTIVE: To investigate the effect of parity on Down syndrome (DS). METHODS: The study was conducted on data from Northeast Italy (NEI) (1981-1996) and Sicily (ISMAC) (1991-1996) Congenital Malformation Registries.
Working Group on Down Syndrome   +4 more
core   +1 more source

Provocation of neurocardiogenic syncope by clomipramine administration during the head-up tilt test in vasovagal syndrome

open access: yes, 2000
OBJECTIVES We sought to test the hypothesis that activation of the serotonergic system in patients with vasovagal syndrome during the head-up tilt test provokes syncope.
Zarvalis, E   +5 more
core   +1 more source

Under a Spell: Neurologic Evaluation of Presyncope as a Feature of Dysautonomia

open access: yesBiomedicines
While syncope is characterized by a sudden and temporary loss of consciousness caused by decreased blood flow to the brain and is easily recognized by its clinical features, presyncope involves a sensation of impending fainting, often accompanied by ...
Svetlana Blitshteyn   +2 more
doaj   +1 more source

Orthostatic intolerance: postural orthostatic tachycardia syndrome with overlapping vasovagal syncope.

open access: yesActa clinica Croatica, 2012
A 28-year-old female with a history of situational syncope and a new-onset right sided hemiparesis is described. Tilt-up table test revealed the postural orthostatic tachycardia syndrome followed by vasovagal syncope. Neurological and internal medicine tests showed no particular disorders.
Škerk, Vedrana   +4 more
openaire   +3 more sources

Correlation between orthostatic intolerance in children and levels of ACE2-Ang(1-7)-Mas axis and vitamin D

open access: yesFrontiers in Pediatrics
ObjectiveTo explore the correlation between orthostatic intolerance in children and levels of the ACE2-Ang(1-7)-Mas axis and vitamin D.MethodsBlood samples were collected from 84 children with orthostatic intolerance and 307 healthy controls.
Yao Xiao   +4 more
doaj   +1 more source

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