Padeletti L, Michelucci A, Fradella G A, Brat A, Monizzi D, Molino Lova R, Fantini F
Arch Mal Coeur Vaiss. 1984 Feb;77(2):155-60.
Twenty eight normal subjects in sinus rhythm underwent direct measurement of sinoatrial conduction time (SACTD) by sinus node potential recordings (SNP) and indirect evaluation by Strauss (SACTS) and Narula's methods (SACTN) using the extrastimulus technique. Stimulation in Narula's method was undertaken at three different rates, 3, 6 and 9 beats per minute faster than the spontaneous rate of the subject (SACTN3, SACTN6, SACTN9). The mean values (+/- SD) were as follows: SACTD 84 +/- 18, SACTN3 85 +/- 29, SACTN6 96 +/- 33, SACTN9 101 +/- 36. The mean value of the SACTD was significantly lower than that of the SACTN9 (p less than 0,01) but there were no significant differences between SACTD and SACTN3 and SACTN6. The three values of the SACTN were closely related to each other but not to the values of the SACTD.
28名处于窦性心律的正常受试者接受了通过窦房结电位记录（SNP）直接测量窦房传导时间（SACTD），以及使用额外刺激技术通过施特劳斯法（SACTS）和纳鲁拉法（SACTN）进行间接评估。纳鲁拉法的刺激以比受试者自发心率快3、6和9次/分钟这三种不同速率进行（SACTN3、SACTN6、SACTN9）。平均值（±标准差）如下：SACTD 84±18，SACTN3 85±29，SACTN6 96±33，SACTN9 101±36。SACTD的平均值显著低于SACTN9（p<0.01），但SACTD与SACTN3和SACTN6之间无显著差异。SACTN的三个值彼此密切相关，但与SACTD的值无关。
