Experimental Physiology, EarlyView.Abstract This narrative review highlights the impact of exercise on vascular health in females over the lifespan with an emphasis on puberty, pregnancy and menopause. These events encompass substantial changes in sex hormone levels, particularly oestrogens and progesterone.
Kathleen B. Miller +2 more
wiley +1 more source
Tilt Testing in the Diagnosis and Treatment of Syncope [PDF]
, 2010 A síncope neurocardiogénica é uma entidade com prevalência e incidência significativas. Apesar da baixa mortalidade relacionada com esta entidade, são significativas as implicações na qualidade de vida dos doentes.
Oliveira, MM, Timóteo, AT
core
Squatting test: A posture to study and counteract cardiovascular abnormalities associated with autonomic dysfunction. [PDF]
, 2011 The squatting test is an active posture manoeuvre that imposes one of the most potent orthostatic stresses. In normal subjects, the changes in blood pressure and heart rate are transient because of appropriate baroreflex homeostasis and do not provoke ...
PHILIPS, Jean-Christophe, SCHEEN, André
core +1 more source
Spectral analysis of heart rate variability for assessment of autonomic nervous system activity during head-up tilt table testing [PDF]
, 2014 Spectral analysis of heart rate variability was used to assess changes in activity of autonomic nervous system (ANS) in 84 patients with history of recurrent syncope and 21 normal controls.
et al., Likar, Polona
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Monitorización con vídeo-EEG y ECG simultáneo para el diagnóstico diferencial de trastornos de conciencia transitorios. A propósito de un caso [PDF]
, 2012 We present the case of a 36 year-old woman, with history of transient consciousness disorders with vegetative state, interpreted as epileptic crises and treated with valproate for two years.
Carmona-Abellan, M. (M.) +5 more
core +1 more source
Self-organization of blood pressure regulation: Clinical evidence
Frontiers in Physiology, 2016 The pathogenesis of vasovagal syncope has remained elusive despite many efforts to identify an underlying dysfunction. Catastrophe theory explains the spontaneous occurrence of sudden events in some mathematically complex systems known as self-organized ...
Jacques-Olivier eFortrat +2 more
doaj +1 more source
Etiological diagnosis, prognostic significance and role of electrophysiological study in patients with Brugada ECG and syncope. [PDF]
, 2017 BACKGROUND: Syncope is considered a risk factor for life-threatening arrhythmias in Brugada patients. Distinguishing a benign syncope from one due to ventricular arrhythmias is often difficult, unless an ECG is recorded during the episode.
Anselmino, M +14 more
core +2 more sources
The Journal of Physiology, EarlyView.Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
wiley +1 more source
Tilt Test in Elderly Patients with Syncope of Unknown Etiology: Experience with Pharmacological Stimulation with Nitroglycerin [PDF]
, 2005 Está demonstrado o papel do teste de inclinação na avaliação de doentes com síncope de causa não esclarecida. Nos idosos, a prevalência de episódios sincopais aumenta, associa-se a pior prognóstico e, frequentemente, implica o recurso a múltiplos exames ...
Antunes, E +8 more
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Wavelet Analysis of Blood Pressure Waves in Vasovagal Syncope [PDF]
, 1999 We describe the multiresolution wavelet analysis of blood pressure waves in vasovagal syncope affected patients compared with healthy people one. We argue that there exist subtle discriminating criteria which allow us to isolate particular features ...
Marrone, A +4 more
core +1 more source