Increased beat-to-beat QRS amplitude variability in patients with congestive cardiac failure

被引：1
|
作者：
Yeragani, Vikram K.
Desai, Nagaraj
Chokka, Pratap
Tancer, Manuel
机构：
[1] Wayne State Univ, Sch Med, Dept Psychiat & Behav Neurosci, Detroit, MI USA
[2] Univ Alberta, Dept Psychiat, Edmonton, AB T6G 2C6, Canada
[3] Ms Ramiah Mem Hosp, Dept Cardiol, Bangalore, Karnataka, India
来源：
INTERNATIONAL JOURNAL OF CARDIOLOGY | 2007年 / 121卷 / 03期
关键词：
congestive cardiac failure; QRS amplitude variability; R-R interval; autonomic; respiration;
D O I：
10.1016/j.ijcard.2006.08.116
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
In patients with ischemic heart disease, dobutamine provoked-stress increases beat-to-beat QRS amplitude variability, which may be due to an electrical instability of the myocardium. Our results in this pilot study showed that patients with congestive heart failure had significantly higher beat-to-beat QRS amplitude variability compared to controls in resting supine posture. This may partly be due to myocardial disease or irregular respiration in this patient group. (C) 2006 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码：309 / 310
页数：2
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