Brenes-Pereira C
Cardiology Department, Hospital México CCSS, University of Costa Rica School of Medicine, San José, Central America.
Tex Heart Inst J. 1997;24(2):118-21.
The electrocardiography study of atrial arrhythmias has been hindered by the frequent occurrence of a "hidden". P wave in standard lead recordings. We present a modified method of surface electrocardiography that proved helpful in our prospective study of 26 consecutive patients in whom traditional surface recordings did not show the atrial mechanism. We recorded leads I, II, and III in their customary positions, except that we repositioned a pertinent limb electrode at a precordial site, in order to identify a P wave. The 4 alternative sites that we found most helpful were at the high and low parasternal positions, both to the right and to the left of the sternum. Confirmatory examples are submitted.
心房心律失常的心电图研究一直受到标准导联记录中频繁出现“隐匿”P波的阻碍。我们提出了一种改良的体表心电图方法，在对26例连续患者进行的前瞻性研究中证明是有用的，这些患者的传统体表记录未显示心房机制。我们按常规位置记录I、II和III导联，但将相关肢体电极重新置于心前区位置，以识别P波。我们发现最有用的4个替代位置是胸骨旁高、低位置，在胸骨右侧和左侧。文中提供了证实性实例。
