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我们对28例窦性心律者采用双脉冲房性期前刺激观察窦房结主导起搏点移。先按Strauss法测定SACT(1),再发放S_3以步长10毫秒进行负扫描测定SACT(2)。SACT(2)比SACT(1)缩短30.7±18.0毫秒(P
28 cases of sinus rhythm we use double pulse atrial stimulation to observe the dominant sinoatrial node pacemaker. SACT (1) was first measured by the Strauss method and then S_ (3) was applied to a negative scan SACT (2) with a step length of 10 ms. SACT (2) was 30.7 ± 18.0 ms shorter than SACT (1) (P