Paper Info
Title
Comparative Analysis Of Short-Term Variability Of Rr And Qt Intervals For The Assessment Of Autonomic Nerve Activity
Abstract
The purpose of this study is to investigate the behavior of autonomic nervous system (ANS), reflected by short-term variability (STV), in the hemodialysis patients with high risk for cardiac arrhythmias and sudden cardiac death. Comparison was performed with normal people. The data were provided by THEW (database ESRD and Normal). STV of RR intervals (STVRR) and QT intervals (STVQT) as well as the ratio of them (STVQT/RR) were calculated using 30 consecutive beats. Two resting episodes lasting 1 h were selected in each Holter record, one by day, the other at night. For each 1 h interval series, a sliding window with width of 30 beats was implemented and indexes of each sliding window within the episode were averaged as the feature indexes (MSTVRR. MSTVQT and MSTVQT/RR of this episode. Results showed that MSTVRR in ESRD was much lower than that in Normal. Though the level of MSTVQT/RR by day was comparable in these two groups, there existed significantly increased MSTVQT/RR at night in ESRD. The decreased heart rate variability (HRV) and increased MSTVQT/RR at night suggest the sympathetic overactivity in ESRD. Comparative analysis of HRV and QT variability using Holter data might be a potential approach to get information of ANS modulation.
Year
DOI
Venue
2013
null
2013 COMPUTING IN CARDIOLOGY CONFERENCE (CINC)
Keywords
Field
DocType
neurophysiology
Hemodialysis,Autonomic nervous system,Internal medicine,Anesthesia,Cardiology,Interval Series,Sudden cardiac death,Decreased heart rate,Electrocardiography,Autonomic nerve,Medicine,Short Term Variability
Conference
Volume
Issue
ISSN
40
null
2325-8861
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Yi Zhu129659.12
Xiaolin Yang210.77
Zhigang Wang300.34
Yi Peng494.16