Circadian variation of QTc dispersion in children with vasovagal syncope

Aims: To assess the validity of QTc dispersion to cardiac autonomic nervous function status. Method and results: Prospective comparisons of QTc dispersion measurements in 77 neurally mediated cardiac syncope (NMCS) patients (29 boys, 48 girls, mean age 13.4±0.78) were evaluated. Head-up tilt test (H...

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Bibliographic Details
Published in:International journal of cardiology 2004-12, Vol.97 (3), p.407-410
Main Authors: Kula, Serdar, Olgunturk, Rana, Tunaoglu, F.Sedef, Canter, Berna
Format: Article
Language:English
Subjects:
Adolescent
Biological and medical sciences
Cardiology. Vascular system
Child
Children
Circadian Rhythm - physiology
Cranial nerves. Spinal roots. Peripheral nerves. Autonomic nervous system. Gustation. Olfaction
Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes
Electrocardiography
Female
Humans
Male
Medical sciences
Nervous system (semeiology, syndromes)
Neurology
QTc dispersion
Syncope
Syncope, Vasovagal - physiopathology
Tilt test
Tilt-Table Test
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Summary:Aims: To assess the validity of QTc dispersion to cardiac autonomic nervous function status. Method and results: Prospective comparisons of QTc dispersion measurements in 77 neurally mediated cardiac syncope (NMCS) patients (29 boys, 48 girls, mean age 13.4±0.78) were evaluated. Head-up tilt test (HUT) was positive in 38 patients and negative in 39 patients. QTc dispersion was significantly higher early morning and late night in HUT-positive group compared with HUT-negative group ( p
ISSN:0167-5273
1874-1754
DOI:10.1016/j.ijcard.2003.10.024