Buchanan L M, Cowan M, Burr R, Waldron C, Kogan H
Nursing Program, Regis University, Denver, CO.
Nurs Res. 1993 Mar-Apr;42(2):74-8.
This pilot study was designed to describe heart rate variability (HRV), anxiety, anger, denial, and depression during the first 4 days and 6 months after acute myocardial infarction (AMI). The sample was composed of 21 post-AMI males aged 40 to 83. State anxiety was elevated early. At 6 months it had significantly decreased. The nonpower measure of HRV, the Kleiger global standard deviation, was decreased to a mean score of 86 (SD = 29) msec during AMI and was 117 (SD = 30) msec at 6 months. Although there were no significant correlations between HRV, psychological response, age, and education, there were moderate correlations between HRV and state anger (r = .33), denial (r = .35), and education (r = .45). HRV, as measured by the power spectral density function of an autoregressive model, demonstrated an increased peak across the band of frequency associated with the high-frequency components of the parasympathetic system and a decreased peak across the band associated with the low-frequency components of the sympathetic system at 6 months as compared to the AMI period.
这项初步研究旨在描述急性心肌梗死（AMI）后前4天及6个月期间的心率变异性（HRV）、焦虑、愤怒、否认和抑郁情况。样本由21名年龄在40至83岁之间的男性AMI患者组成。状态焦虑在早期升高，6个月时显著下降。HRV的非功率测量指标，即克莱格全局标准差，在AMI期间降至平均86（标准差 = 29）毫秒，6个月时为117（标准差 = 30）毫秒。尽管HRV、心理反应、年龄和教育程度之间无显著相关性，但HRV与状态愤怒（r = 0.33）、否认（r = 0.35）和教育程度（r = 0.45）之间存在中度相关性。与AMI期间相比，通过自回归模型的功率谱密度函数测量的HRV在6个月时显示，与副交感神经系统高频成分相关的频率带内峰值增加，与交感神经系统低频成分相关的频率带内峰值降低。
