[Significance of Tp-Te interval for risk stratification of ventricular premature contractions in children].
Zhongguo Dang Dai Er Ke Za Zhi
; 15(11): 1014-7, 2013 Nov.
Article
em Zh
| MEDLINE
| ID: mdl-24229601
ABSTRACT
OBJECTIVE:
To investigate the significance of Tp-Te interval for risk stratification of ventricular premature contractions (VPC) in children.METHODS:
A total of 120 children with VPC were divided into benign VPC (n=40), organic disease (n=40) and ventricular parasystole groups (n=40) according to the etiology of VPC; another 40 children who underwent physical examination were selected as the normal control group. The four groups were compared in terms of Tp-Te intervals and Tp-Te/QT ratios in leads V3, V4 and V5.RESULTS:
The Tp-Te interval in lead V3 was significantly longer in the organic disease group than in the other groups (P<0.05), the benign VPC group had a significantly shorter Tp-Te interval in lead V4 than the normal control and organic disease groups (P<0.05), and the organic disease group had a significantly longer Tp-Te interval in lead V5 than the benign VPC group (P<0.05). The Tp-Te/QT ratios in leads V3-V5 were significantly higher in the organic disease group than in the other groups (P<0.05). The Tp-Te/QT ratios in leads V4 and V5 showed significant differences between the ventricular parasystole and benign VPC groups (P<0.05).CONCLUSIONS:
Tp-Te interval is susceptible to changes in heart rate, and it is of little value for the risk stratification of VPC in children. Tp-Te/QT ratio, however, may be used as an important non-invasive index for clinical risk stratification of VPC in children and is worthy of further study.
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Bases de dados:
MEDLINE
Assunto principal:
Complexos Ventriculares Prematuros
/
Eletrocardiografia
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
Zh
Revista:
Zhongguo Dang Dai Er Ke Za Zhi
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China