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采用经食道心房调搏法检测８９例病人，检出窦房结有效不应期（ＳＮＥＲＰ）者２１例（２３．６０％）。病窦组者ＳＮＥＲＰ平均值为５２５±５３．０２ｍｓ，显著高于窦缓组（４２７±１８．１９ｍｓ）和正常组（３６７．１４±１８．３７ｍｓ）者（Ｐ〈０．０１）；ＳＮＥＲＰ的延长（〉５２０ｍｓ）在病窦的诊断中具有重要的临床意义，其敏感性与特异性远较窦房结恢复时间（ＳＮＲＴ）与窦房传导时间（ＳＡＣＴ）为高。
Twenty-one patients (23.60%) were detected by transesophageal atrial pacing method in 89 patients and SNERP was detected. The average SNERP in patients with sinusitis was 525 ± 53.02 ms, significantly higher than those in sinus bradycardia (427 ± 18.19 ms) and normal controls (367.14 ± 18.37 ms) (P <0.01). SNERP Prolongation (> 520ms) has important clinical significance in the diagnosis of sick sinus, and its sensitivity and specificity are far higher than those of the sinus node recovery time (SNRT) and sinoatrial conduction time (SACT).