Why the study?
Does sternal recumbency compared to lateral recumbency alter electrocardiographic parameters in nonanesthetized normal cats?
Does sternal recumbency compared to lateral recumbency alter electrocardiographic parameters in nonanesthetized normal cats?
Sternal recumbency in cats produces similar ECG parameters to lateral recumbency, with minor differences in P wave and QRS complex amplitudes.
May support sternal positioning for feline ECGs; leaves open translation to clinical patients or other species.
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.
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Gompf et al. (1979) studied this question.
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