食道心房调搏测定窦房结有效不应期的意义

THE SIGNIFICANCE IN THE ASSAY OF SINUS EFFECTIVE REFRACTORY PERIOD WITH ESOPHAGEAL ATRIAL PACING

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。

cases were examined with esophageal atrial pacing and 21 of whom (23.60%) had sinus effective refractory period(SNERP).The average SNERP of SSS patients was 525± 53.02ms,much higher than those of both the bradycardiac and normal cases (P0.01).The prolongation of SNERP(〉520ms)with high susceptibility and idiocrasy showed great significance for clinical diagnoses of sick sinus syndrome(SSS).