Tilt-table testing has become an important part of the evaluation of patients with unexplained
syncope, although not every patient with vasovagal syncope requires it. Studies have …

Chronic fatigue syndrome (CFS) or myalgic encephalomyelitis is a clinically de־ fined
syndrome characterized by persistent or relapsing debilitating fatigue for longer than 6 …

Background—Recurrent syncope represents a debilitating disorder and quality of life
deteriorates as a function of recurrence of symptoms. Although the administration of β …

Objectives. To demonstrate the association between orthostatic intolerance and the chronic
fatigue syndrome (CFS) in adolescents and to delineate the form that orthostatic intolerance …

A wide variety of pharmacological agents are currently used for prevention of recurrent
neurally mediated syncope, especially the vasovagal faint. None, however, have …

We examined whether the altered orthostatic tolerance following 14 days of head-down tilt
bed rest (HDBR) was related to inadequate sympathetic outflow or to excessive reductions …

While the investigation of the physiological and vasovagalsyncope. Thepathophysiologyofthevasopathophysiol…
effects of orthostatic stress vagal response is thus central to an understanding induced by …

This study assesses the vasovagal collapse pattern changes, ie, heart rate (HR) and arterial
blood pressure (BP) with a 2-stage tilt-test protocol using glyceryl trinitrate (GTN) …

The consensus process that culminated in this symposium established an algorithm to guide
the diagnosis and treatment of patients with vasovagal syncope and related disorders. In …

Objective The aim of this study was to compare beat-to-beat changes in stroke volume (SV)
estimated by two different pressure wave analysis techniques during orthostatic stress …