Jinko Zoki
Online ISSN : 1883-6097
Print ISSN : 0300-0818
ISSN-L : 0300-0818
A study of atrial endocardial signals
M. MURASE, T. ABE, T. WASHIZU, M. TANAKA, M. KAWAMURA, E. TAKEUCHI, R. KAKIHARA, Y. IYOMASA, T. ISHIHARA, Y. MIYATA, T. OOMIYA, S. TAMAKI
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Keywords: physiological pacing, intraatrial signal, p-voltage of ECG, SSS, AVE
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1982 Volume 11 Issue 6 Pages 1005-1008

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Abstract
Fifty-seven atrial signals in 47 cases were studied. Amplitude of the endocardial signal of sick sinus syndrome (SSS, 2.1±1.0mV, mean±SD, n=28) is significantly lower than that of atrioventricular block (AVB, 4.0±1.1mV, n=12, p<0.001). The total p-wave voltage of leads I, II, and III of ECG is lower in SSS (0.30±0.11mv, n=35) than in AVE (0.46±0.11mV n=11) significantly (p<0.001). And the total p-wave voltage shows relatively good correlation to the amplitude of atrial endocardial signal (Y=0.22+0.05X, r=0.532). Amplitude of intraatrial signal may be suspected preoperatively.
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