Sinus node depolarization - Present during all sinus rhythms but never seen on the 12-lead ECG: An illustrative
1Columbia University, c/o 202 Birkdale Lane, Jupiter, FL 33458, United States of America.
Journal of Electrocardiology
|May 16, 2020
Abstract:
Because it is not visible on the 12-lead ECG, few if any electrocardiographers have seen the waveform of sinus node (SN) depolarization. Yet, SN depolarization is present before every P wave during all sinus rhythms. Herein, a case is presented in which a recorded SN depolarization waveform is observed.
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