Clinical research of heart rate variability and deceleration capacity in children with idiopathic ventricular premature ;contraction
10.3969/j.issn.1000-3606.2016.07.001
- VernacularTitle:特发性室性期前收缩患儿心率变异性和心率减速力的研究
- Author:
Wenjuan WANG
;
Hongxia WEN
;
Xiaoxiao CAO
;
Jingyang ZHANG
;
Mei QIU
;
Si LI
;
Lanfen YI
;
Chongliang WANG
;
Hui WU
- Publication Type:Journal Article
- Keywords:
ventricular premature contraction;
heart rate variability;
deceleration capacity of rate;
child
- From:
Journal of Clinical Pediatrics
2016;34(7):481-485
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the relationship between heart rate variability (HRV) and deceleration capacity (DC) in children with idiopathic ventricular premature contraction of different origins. Methods The clinical data from 155 children with idiopathic ventricular premature contraction were retrospectively analyzed. According to the age, the children were divided into young children group (3 years old), preschool age group (3-6 years old) and school age group (6-16 years old). Each group was divided into the right ventricular type group and the left ventricular type group respectively according to the origin site. The differences of HRV and DC were compared among groups. Results Among three different age groups, the DC and time domain of HRV were signiifcantly different (P all?0 . 05 ). In young children group, RMSSD, HF, LF/HF, DC, and PNN 50 were statistically different between right ventricular type group and left ventricular type group (P all?0 . 05 ). In preschool age group, RMSSD, LF, HF, LF/HF, and DC were statistically different between right ventricular type group and left ventricular type group (P all?0 . 05 ). In school age group, the RMSSD, HF, LF/HF, and DC were statistically different between right ventricular type group and left ventricular type group (P all?0 . 05 ). Conclusions Children with idiopathic ventricular premature contraction have impaired regulations of cardiac autonomic system which mainly manifests as reduced tension of vagus nerve. Ventricular premature contraction originated from ventricle preponderance (young children and preschool children are right preponderance while school children are left preponderance) increases the risk of malignant arrhythmia.