The ventricular late potentials in children with vasodepressor response of vasovagal syncope.
Int J Cardiol
; 220: 414-6, 2016 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-27390964
ABSTRACT
OBJECTIVES:
To discuss ventricular late potentials (VLPs) in children with vasodepressor response of vasovagal syncope (VVS-V).METHODS:
184 children diagnosed as VVS-V by head-up tilt test (HUTT) were enrolled as VVS-V group, 105 age and gender matched healthy individuals without syncope were used as control group, then signal-averaged electrocardiogram was measured.RESULTS:
HR was decreased [(83.98±12.27) vs (87.28±13.75)bpm, P<0.05] in VVS-V group compared with control group. The prevalence of positive VLPs was not significantly different between the two groups. However the absolute values of TQRS [(84.89±12.05) vs (81.21±8.23)ms, P<0.01], RMS40 [(28.73±7.23) vs (26.89±7.36)µV, P<0.05] and LAS40 [(62.43±19.17) vs (56.79±1.83)ms, P<0.05] were significantly prolonged in VVS-V group compared with control group, and more patients in VVS-V group had abnormal prolonged LAS40 (94.57% vs 83.80%, P<0.01).CONCLUSIONS:
The prevalence of positive VLPs was not significantly different, TQRS, RMS40, LAS40 were longer in children with VVS-V in comparison with healthy individuals, and the abnormal LAS40 occurred in a higher proportion of VVS-V group.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Teste da Mesa Inclinada
/
Síncope Vasovagal
/
Eletrocardiografia
Tipo de estudo:
Risk_factors_studies
Limite:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Male
Idioma:
En
Revista:
Int J Cardiol
Ano de publicação:
2016
Tipo de documento:
Article