Vaĭtkus E A, Iuknialis L V
Ter Arkh. 1991;63(9):47-9.
The 20-fold enhanced ECG (without frequency filtration of the signal) was recorded in 30 normal men aged 18 to 36 years. A study was made of the constancy of the P wave forms on the ECG. The P wave form underwent changes in 8 test subjects: in 5 during breathing retention on expiration and in 3 during superficial breathing. The changes indicated are viewed as a manifestation of intraatrial conduction disorders. It is assumed that the changes in the tone of the autonomic nervous system and myocardial hypoxia may contribute to the detection of latent disorders in the cardiac activity.
对30名年龄在18至36岁的正常男性记录了增强20倍的心电图（未对信号进行频率滤波）。对心电图上P波形态的稳定性进行了研究。8名受试者的P波形态发生了变化：5名在呼气屏气时，3名在浅呼吸时。所指出的这些变化被视为心房内传导障碍的表现。据推测，自主神经系统张力的变化和心肌缺氧可能有助于检测心脏活动中的潜在障碍。
