AIMS Our goal was to develop historical criteria for the diagnosis of vasovagal syncope. METHODS AND RESULTS We administered a 118-item historical questionnaire to 418 patients with syncope and no apparent structural heart disease. The prevalence of each item was compared between patients with positive tilt tests and those with syncope of other, known causes. The contributions of symptoms to ...

conclusions hemodynamic response to the hutt was associated with age. cardioinhibitory response became less frequent with age due to exaggerated vagal activity in the younger patients as compared with the older subjects. background the head-up tilt test (hutt) is a useful diagnostic tool for syncope. objectives we sought to investigate the outcome of the hutt in syncope patients and identify th...

BACKGROUND Previous studies that assessed the effects of beta-blockers in preventing vasovagal syncope provided mixed results. Our goal was to determine whether treatment with metoprolol reduces the risk of syncope in patients with vasovagal syncope. METHODS AND RESULTS The multicenter Prevention of Syncope Trial (POST) was a randomized, placebo-controlled, double-blind, trial designed to ass...

Syncope is a frequent clinical manifestation and represents 1–2% of emergency room visits and frequently leads to hospital admission and expensive and frequently unnecessary diagnostic tests. The cause of syncope is frequently reflex mediated, and particularly vasovagal responses closely followed by orthostatic hypotension and drug-induced syncope are the main causes. By and large, the prognosi...

Autonomic nervous system control in subjects with vasovagal syncope is controversial. In the present study, we used short-term spectral analysis to evaluate autonomic control in subjects with recurrent vasovagal syncope. We assessed the ability of spectral indices of HR (heart rate) variability to predict tilt-test responses. A series of 47 outpatients with recurrent vasovagal syncope and with ...

This paper presents the possibility of using recurrence analysis for the vasovagal syncopes detection. The recurrent analysis is very promising nonlinear technique which is able to analyse system’s dynamics. The main part of the work focuses on evaluation of heart rate variability using recurrence analysis in group of patients with vasovagal syncope and control group. The result of the work is ...

Aborting Vasovagal Syncope To the Editor: The recent article by Lu et al1 reminded us of the frequency of vasovagal syncope (neurally mediated syncope) in the general population—22%. Although effective therapy, both pharmacologically and with a pacemaker, is now available,2 prevention is still the best recourse. Because vasovagal syncope is preceded by prodromal symptoms in two thirds of cases,...

beta-Adrenergic receptor blockers are one of a number of therapeutic agents promoted as having beneficial effects in vasovagal syncope. In this issue of Clinical Science, Eldadah and co-workers have investigated the effect of the beta-adrenergic receptor blocker propranolol in preventing syncope in a double-blind cross-over trial in eight subjects with a diagnosis based on tilt table testing an...

Neurocardiovascular diseases (NCVD) are the leading cause of death in the developed world and will remain so till 2020. In these diseases the pathologically changed nervous control of cardiovascular system has the central role. The actual NCV syndromes are neurogenic hypertension, representing the sympathetically mediated disorder, and vasovagal syncope, which is the vagally mediated disorders....