本文报道由于操作失误,产生易致误诊的几种心电图伪差。说明见正文图l为三导联同步记录的心电图.1、l导联似房导心电图出现这类伪差时、可根据临床无心动过速,且性心动过速呈2,1~3:1房室传导.而I导联除窦性各波干扰(假P波)的间期无规律性作为辩认条件。心律不齐外.无其它心律异常。根据六轴系统推测.这是例2.男.24岁.健康查体。图2为v,不连续记录上由于左上肢(黄)、电极与皮肤接触不良在工、l导联造联出现似单向曲线型 This article reports due to operational errors, resulting in easily lead to misdiagnosis of several ECG artifacts. Description see the body of Figure l is the three lead ECG recorded simultaneously.1, l leads the lead ECG such pseudo-poor, according to clinical no tachycardia, and tachycardia was 2,1 ~ 3: 1 atrioventricular conduction, while the I lead in addition to the sinus interference of each wave (false P wave) irregularity as a proof of the conditions. Arrhythmia outside. No other heart rhythm. According to six-axis system speculation .This is an example 2. Male .24 years old. Physical examination. Figure 2 v, discontinuous record due to the left upper limb (yellow), poor contact with the skin in the workers, l lead to make the connection appears to be one-way curve