Results:The 16 case of PAF(51.6%) can be identified the sick sinus syndrome(SSS) from the causes of SNRT,CSNRT and SACT;

• 结果:2例因心率过快停止测试；余31例根据窦房结恢复时间(SNRT)、校正窦房结恢复时间(CSNRT)、窦房传导时间(SACT)可明确诊断病态窦房结综合征16例(51.；6%25)窦房结功能低下8例(25