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本例心电图为12导联与双极食管导联(EB)同步记录。图中前半部分未见P波,代之以大小、形态、间距不规则的“f”波,R-R间期绝对不规则,明确为心房颤动。细小的“f”波持续至R_7前后时转变为粗大的“f”波,并由R_8前的一次粗“f”波诱发其后的窄QRS波群心动过速。R-R间期绝对规则,频率180次/min,12导联心电图ST段上隐约可见P-波,难以肯定,对照双极食管导联明确每个QRS波群后均有固定的P-波,R-PE-间期120ms,从而明确为顺向
This example ECG 12 lead and bipolar esophageal lead (EB) recorded simultaneously. The first half of the figure no P wave, replaced by size, shape, spacing irregular “f ” wave, R-R interval is absolutely irregular, clear as atrial fibrillation. The small “f” wave continued to change into a coarse “f” wave before and after R_7, and the subsequent narrow QRS tachycardia was induced by a rough “f” wave before R_8. RR interval absolute rule, the frequency of 180 beats / min, 12-lead electrocardiographic ST segment looming P-wave, it is difficult to be sure, the control bipolar esophageal lead clear after each QRS complex have a fixed P-wave, R -PE- interval 120ms, so clear for the forward