60岁以上老年人群心电正常值统计与分析

Statistical analysis of ECG characteristic values in the elderly over 60 years old

目的调查研究我国60岁以上人群心电图参数(P波时限、电轴,QRS波群时限、电轴,PR间期,QT及QTc间期)与正常范围的关系。方法采集695例60岁以上(男310例,女385例)正常人群心电图,计算男女心电图各项参数的平均值、标准差并与正常范围做比较。结果 60岁以上男女心率最低值随年龄增长而呈现下降趋势,此结果与正常范围保持一致。P波时限、PR间期时限、T波时限、QT及QTc间期方面均较正常范围延长。而随着年龄增长,男女性PR段均较正常范围缩短,考虑为年龄增长左房压力增大,而未造成左房生理结构发生改变所致。QRS时限在60岁以上男性健康人群中延长。R波电轴、T波电轴在60岁以后会逐渐左偏。结论临床诊断中关于老年人群P波时限、QRS时限(男)参考值可适当延长;PR间期、T波时限、QT及QTc间期随年龄增长参考值可适当延长;R波及T波电轴随年龄增长逐渐左偏。

Objective The relationship between electrocardiogram parameters (P wave duration, electric axis, QRS wave duration, electric axis, PR interval, QT and QTc interval) and normal range in a Chinese population over 60 years old was investigated. Methods The electrocardiograms of 695 normal persons (310 males and 385 females) were collected. The average and standard deviation of electrocardiogram parameters were calculated and compared with the normal range. Results The lowest heart rate of men and women showed a downward trend with age, which was consistent with the normal range. Compared with the normal range, the P wave duration, PR interval duration, T wave duration, QT and QTc interval of people over 60 years old were prolonged. The PR segment was shorter than the normal range as the age increased. It was considered that the left atrial pressure increased with age, but the physiological structure of left atrium did not change. QRS duration was prolonged in healthy men over 60 years old. R-wave axis and T-wave axis will gradually deviate to the left after 60 years of age. Conclusion In clinical diagnosis, P-wave duration, QRS duration (male) can be prolonged appropriately;PR interval, T-wave duration ,QT interval and QTc interval can be prolonged appropriately with age, and R-wave and T-wave axis gradually shift left with age.