An Electrocardiographic Artifact Synchronized With the Cardiac Rhythm: A Case Report.

(We could not place the transducer and the left leg electrode on the pulsation at the same time and thus were unable to directly compare the arterial pulse waveform with other electrocardiogram leads.) C. Synchronous recordings of electrocardiogram lead I and the arterial pulse waveform in the left leg. All the limb leads and precordial leads depend on the left leg electrocardiogram electrode, except for lead I. As a result, we examined the left leg electrode and felt a strong pulsation that we interpreted as arterial pulsation. [Extracted from the article]