Twenty-eight normal subjects with 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 with Narula's method was undertaken at three different rates, 3, 6 and 9 beats per minute faster than the spontaneous rate of the subjects, (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 <0.01) but there were no significant differences between SACTD and SACTN3 and SACTN6. The three values of SACTN were closely related to each other but not to the values of SACTD.
|Translated title of the contribution||Comparison of direct and indirect (Narula's method) sinoatrial conduction times in normal subjects|
|Number of pages||6|
|Journal||Archives des Maladies du Coeur et des Vaisseaux|
|Publication status||Published - 1984|
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine