Changes in RR and QT Intervals after Spontaneous and Respiratory Arousal in Patients with Obstructive Sleep Apnea

被引：6
|
作者：
Baumert, M. [1 ]
Smith, J. [1 ,2 ]
Catcheside, P. [2 ]
McEvoy, D. R. [2 ]
Abbott, D. [1 ]
Nalivaiko, E. [3 ]
机构：
[1] Univ Adelaide, Sch Elect & Elect Engn, Adelaide, SA 5005, Australia
[2] Repatriat Gen Hosp, Adelaide, SA, Australia
[3] Flinders Univ S Australia, Adelaide, SA, Australia
来源：
COMPUTERS IN CARDIOLOGY 2007, VOL 34 | 2007年 / 34卷
基金：
澳大利亚国家健康与医学研究理事会; 澳大利亚研究理事会;
关键词：
D O I：
10.1109/CIC.2007.4745576
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Obstructive sleep apnea (OSA) is a common disorder that has been associated with hypertension and ventricular arrhythmias. The aim of this study, was to investigate changes in RR and QT intervals after respiratory and spontaneous arousals in patients with OSA. We conducted overnight sleep studies in 20 patients. The mean and range of respiratory, disturbance index were 49 +/- 28 and [17-107], respectively. During stage 2 sleep, ECGs were analyzed over a period of 30 seconds. From the 187 arousals investigated (120 respiratory vs. 67 spontaneous) a significant number were associated with a RR interval shortening (64%). Eighteen percent of the RR intervals were prolonged, with a significantly higher number during spontaneous arousals (13% vs. 27%). Similarly, QT intervals shortened after arousal (65%). But there were no significant differences between spontaneous and respiratory arousals. In conclusion, spontaneous and respiratory arousals lead to changes in heart rate and ventricular repolarization.
引用
收藏
页码：677 / +
页数：3
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