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当心脏被两个频率异常快速的异位起搏点各自控制一部分的时候,临床上就产生了双重心动过速。两个异位起搏点所在部位可能是心房与心室,心房与房室连接区,房室连接区与心室等。在各种不同类型的双重心动过速中,房性与房室连接区性异位节律并存者,据陈氏等於1973年统计国内外报导尚不到10例,国内迄今为止散见的报导不完全统计亦只有6例。此种心律失常首先是由Gallavadin氏於1920年发现,但当时未引起广泛的重视,至1952年Bernstein氏才指出双重性心动过速。发现之所以较少,是
When the heart is abnormally fast by two frequency ectopic pacemaker each part of the control, when clinically produced double tachycardia. The site of two ectopic pacemaker may be the atrium and ventricle, atrial and atrioventricular connection area, atrioventricular junction and ventricular and so on. In a variety of different types of double tachycardia, atrial and atrioventricular nocturnal ectopic rhythm coexist, according to Chen equal to 1973 statistics at home and abroad reported less than 10 cases, the domestic so far scattered reports not Complete statistics also only 6 cases. This type of arrhythmia was first discovered by Gallavadin in 1920 but did not attract much attention at the time, and Bernstein pointed out dual tachycardia in 1952. The reason why less is found