(28.56702.2380.2382.2521)

房性期前收缩，起源于窦房结以外心房的任何部位。正常成人进行24小时心电检测，约60%的人有房性期前收缩发生。各种器质性心脏病患者均可发生房性期前收缩，并经常是快速性房性心律失常出现的先兆。...</br> generated by yvsou girl

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