P-SAECG: (I) there was significant difference in the P wave duration of P-SAECG between normals and PAF, (2) the sensitivity, specificity and predictive accuracy for diagnosing AF was much higher than that of ECG;

• P-SAECG：(1)证明了正常人与有房颤史患者的P-SAECG检测P波间期差异明显(2)证实P-SAECG对预测房颤的灵敏度和特异性以及总符合率较常规心电图高。