Relationship between heart rate variability indexes and severity of coronary artery lesions in patients with coronary heart diseases(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2019年第12期
- Page:
- 1472-1475
- Research Field:
- 医学生物物理
- Publishing date:
Info
- Title:
- Relationship between heart rate variability indexes and severity of coronary artery lesions in patients with coronary heart diseases
- Author(s):
- FENG Hui; WU Zhongwei; LIU Chaoquan
- Department of Cardiology, West Central Hospital of Hai’nan Province, Danzhou 571700, China
- Keywords:
- Keywords: dynamic electrocardiogram; coronary heart disease; heart rate variability; coronary artery
- PACS:
- R541.4
- DOI:
- DOI:10.3969/j.issn.1005-202X.2019.12.021
- Abstract:
- Abstract: Objective To explore the relationship between heart rate variability indexes and the severity of coronary artery lesions in patients with coronary heart diseases. Methods Eighty-four patients with coronary heart diseases were selected as observation group, and 90 healthy volunteers were selected as control group. All subjects were given 24-hour dynamic electrocardiogram monitoring. Results The standard deviation of NN intervals (SDNN), standard deviation of averaged RR intervals (SDANN), square root of the mean squared differences of successive RR intervals (RMSSD), percentage of heartbeats with differences between adjacent RR interval >50 ms (PMN50) and high-frequency power (HF) of observation group were (95.54±20.12) ms, (94.48±21.15) ms, (29.84±10.06) ms, (7.46±2.31)% and (0.85±0.20) Hz, respectively, obviously lower than those of control group, while the low-frequency power (LF) of observation group was (137.74±21.16) Hz, which was significantly higher than that of control group (P<0.05). The SDANN, RMSSD, PMN50 and HF in patients with no less than 3 branches of coronary artery lesions were (84.31±19.64) ms, (89.42±18.82) ms, (23.38±7.15) ms, (5.40±1.90)% and (0.70±0.21) Hz, respectively, which were significantly lower than those in patients with less than 3 branches of coronary artery lesions (P<0.05), while LF was (150.54±21.15) Hz, significantly higher than those in patients with less than 3 branches of coronary artery lesions (P<0.05). There was no significant difference in SDNN, SDANN, RMSSD, PMN50, HF and LF between males and females in observation group (P>0.05). Gensini scores were negatively correlated with SDNN, SDANN, RMSSD, PMN50 and HF (r=-0.511, -0.487, -0.543, -0.512, -0.507; P<0.05), but positively correlated with LF (r=0.577, P<0.05). Conclusion Dynamic electrocardiogram has a certain application value in evaluating the severity of coronary artery lesions in patients with coronary heart diseases, and the heart rate variability indexes have a certain relationship with the severity of coronary artery lesions.
Last Update: 2019-12-26