Gompf R E, Tilley L P
Am J Vet Res. 1979 Oct;40(10):1483-6.
Comparison was made of the effects of lateral and sternal recumbent positions for recording (by electrocardiography) cardiac functions in nonanesthetized normal cats of various breeds and ages and both sexes. Reference values of the cats in lateral recumbency were P wave, 0.2 mV by 0.04 s; PR interval, 0.09 s, QRS complex, 0.9 mV by 0.04 s; QT interval, 0.18 s; and 0 to 160 degree axis. Similar values were obtained in the cats in sternal recumbency except that the height of the P wave was 0.3 mV, the height of QRS complex was 1.0 mV, and the axis was -10 degrees to 150 degrees. The only differences between these values and values previously reported were faster heart rate, higher P wave, narrower QRS complex, and more variable electrical axis.
对不同品种、年龄和性别的未麻醉正常猫采用侧卧位和胸骨卧位记录（通过心电图）心脏功能的效果进行了比较。侧卧位猫的参考值为：P波，0.2mV×0.04s；PR间期，0.09s；QRS波群，0.9mV×0.04s；QT间期，0.18s；电轴0至160度。胸骨卧位猫获得了类似的值，只是P波高度为0.3mV，QRS波群高度为1.0mV，电轴为-10度至150度。这些值与先前报道的值之间的唯一差异是心率更快、P波更高、QRS波群更窄以及电轴变化更大。
