第九节射频消融术儿童快速性心律失常是儿科心血管疾病的重要组成部分，最常见的是室上性心动过速，包括房室折返性心动过速、房室结折返性心动过速、心房异位性心动过速、心房肌折返性心动过速，室性心动过速、房性扑动、房性颤动等在儿科少见。
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