Benzadón Mariano Noel, Ortega Daniel Felipe, Thierer Jorge Mario, Torcivia Ricardo Adolfo Spampinato, Aldunate Leandro, de Lima Alberto Enrique Alves, Navia Daniel, Dorsa Alberto, Rossi Adriana, Trivi Marcelo
Instituto Cardiovascular de Buenos Aires, Buenos Aires, Argentina.
Am J Cardiol. 2006 Oct 1;98(7):978-81. doi: 10.1016/j.amjcard.2006.04.042. Epub 2006 Aug 18.
Recognition of the P wave is important for the correct characterization of atrial and ventricular arrhythmias. When the P wave is difficult to identify on standard electrocardiography (SECG), either esophageal electrocardiography (EECG) or intracardiac electrocardiography (IC-ECG), central venous catheter may be used. The feasibility of these methods has already been demonstrated, but there is no published study comparing them. This study compared the amplitude of the P wave obtained by IC-ECG with those of the P waves obtained by EECG and SECG. SECG, EECG, and IC-ECG were performed on each patient. IC-ECG and EECG made it possible to register P waves larger than registered by SECG (p <0.00001). The difference between the largest P waves obtained with IC-ECG (5.93 +/- 3.56 mm) and EECG (4.67 +/- 2.16 mm) was not statistically significant (p = 0.1953). In conclusion, IC-ECG is easy to perform and magnifies the P wave at least as effectively as EECG.
识别P波对于正确判定房性和室性心律失常很重要。当在标准心电图（SECG）上难以识别P波时，可使用食管心电图（EECG）、心内心电图（IC-ECG）或中心静脉导管。这些方法的可行性已得到证实，但尚无比较它们的发表研究。本研究比较了通过IC-ECG获得的P波幅度与通过EECG和SECG获得的P波幅度。对每位患者进行了SECG、EECG和IC-ECG检查。IC-ECG和EECG能够记录到比SECG记录到的更大的P波（p<0.00001）。通过IC-ECG获得的最大P波（5.93±3.56mm）与通过EECG获得的最大P波（4.67±2.16mm）之间的差异无统计学意义（p=0.1953）。总之，IC-ECG操作简便，放大P波的效果至少与EECG一样有效。
