Reduced high-frequency QRS components in patients with ischemic heart disease compared to normal subjects

被引:30
作者
Trägårdh, E
Pahlm, O
Wagner, GS
Pettersson, J
机构
[1] Univ Lund Hosp, Dept Clin Physiol, SE-22185 Lund, Sweden
[2] Duke Clin Res Inst, Dept Cardiol, Durham, NC USA
关键词
ischemic heart disease; high-frequency ECG;
D O I
10.1016/j.jelectrocard.2004.02.004
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Analysis of high-frequency QRS components (HF-QRS) might provide an additional method when diagnosing various heart diseases, for example ischemic heart disease (HID). This study compares HF-QRS in normal Subjects to those in patients with HID, and also analyzes HF-QRS considering gender and age. A total of 63 normal subjects and 64 patients with IHD were included. Signal-averaged electrocardiograms (ECGs) from the 12 standard leads were analyzed in the frequency interval of 150-250 Hz. The results showed that the summed 12 lead HF-QRS in patients with IHD were significantly lower than in normal subjects (mean summed HF-QRS was 33.5 muV in the HID group, 43.7 muV in normal individuals, P < .0005). HF-QRS were not statistically associated with gender or age (P = .820 and P = .573, respectively). However, the inter-individual variation of HF-QRS was large in both groups which probably limits the clinical usefulness of the method.
引用
收藏
页码:157 / 162
页数:6
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