PM2.5升高对健康青年HRV时域参数的影响  

The Effects of High PM2.5 on the Heart Rate Variability of Health Youth

作　　者：颜伟[1] 马一鸣[1] 朱超[1] 郑小琴[1] 陈琪[1] 

机构地区：[1]中国人民解放军总医院心内科,100853

出　　处：《临床心电学杂志》2017年第2期105-108,共4页Journal of Clinical Electrocardiology

摘　　要：目的观察PM2.5(Particulate Matter 2.5)升高对健康青年人群心率变异性时域参数的影响。方法选择健康青年人265例,男124例,女141例,平均年龄(38.57±5.72)岁。气象资料和PM2.5大气污染物监测资料来源于中国国家气象中心及北京市环境监测中心。选择2013年10月至2014年3月,PM2.5浓度超标相对较多的时期进行研究。选择空气质量指数(AQI)<50与AQI>200时,青年患者24h动态图心率变异性时域参数(Time Domain Index)进行分析。监测窦性搏动的心率变异性(HRV)时域参数包括:相邻正常RR间期差值超过50ms的百分比(PNN50)、NN间期标准差(SDNN)、NN间期平均值的标准差(SDANN)、全程间期之差的平方根(RMSSD),及三角指数。结果各年龄段男性组,心率变异性时域参数在正常范围内,与AQI<50时比较,AQI>200时,心率变异性时域参数无统计学差异;各年龄段女性组,心率变异性时域参数在正常范围内,与AQI<50时比较,AQI>200时,心率变异性时域参数无统计学差异。结论各年龄段青年男性和女性在AQI>200时,心率变异性时域参数维持在正常波动范围内,与AQI<50时无统计学差异。Objective We observed the effects of Particulate Matter 2.5 （PM2.5） on Heart Rate Variability （HRV）.Methods We chose 265 healthy young population,124 males,and 141 females,with mean age of 38.57 ± 5.72 years old.The data of the climate was obtained for Chinese meteorological administration and Beijing municipal environmental monitoring center.The study was done during October to March,which was covered by relatively more heavy pollution days.The Air Quality Index （AQI） was used as the stratification criteria,AQI〈50 means normal,and AQI〉200 means heavy pollution days.We compared the data of HRV on days with AQI〈50 and AQI〉200.The data of HRV included PNN50,SD,SDNN,SDANN,RMSS.Results In male subjects with different age,the data of HRV was in normal range,and compared with AQI〈50,in days when AQI〉200,there was no significant difference between those AQI〈50 and AQI〉200.In female subjects with different age,the data of HRV was also in normal range,and there was no significant difference between those AQI〈50 and AQI〉200.Conclusions Heavy pollution air has no significant effect on HRV of healthy young population.

关 键 词：青年 心率变异性 空气污染指数 

分 类 号：R12[医药卫生—环境卫生学] R540.41[医药卫生—公共卫生与预防医学]