正常人心电图QRS波群的影响因素

健康人的年龄、性别、体位、体型、呼吸、心率、心室容量、心肌收缩力及自主神经张力等均为影响QRS波群的相关因素。在这些因素中,呼吸、心率、心室容量、心肌收缩力以及自主神经张力本身都存在昼夜节律变化,从而使QRS电轴、振幅存在一系列年龄趋势、昼夜节律,并受到心率、体位等因素的影响。在心电图分析诊断中,应当结合临床实际情况,并充分考虑以上影响因素。

Influencers of Electrocardiographic QRS Waves in Healthy People

Healthy people′s age,gender,posture,body size,breathing,heart rate,ventricular volume,myocardial contractility and autonomic nervous tone are all relevante factors of QRS wave group.Among these factors,breathing,heart rate,ventricular volume,myocardial contractility and autonomic nervous tone can change themselves with the change of circadian rhythms,so the axis and amplitude of QRS wave group also have a series of rules,such as age trend and circadian rhythm,and can be influenced by heart rate,posture and some other factors.We should think comprehensively about the actual situation of clinical and the influencers above while analyzing one electrocardiogram.