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Modulation of ECG atrial flutter wave amplitude by heart motion: A model-based and a bedside estimate

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8 Author(s)

This paper reports two attempts at estimating the magnitude of atrial flutter amplitude modulation caused by atrial motion during heart contraction. The first approach consists in analyzing the ECG of a patient in flutter with atrioventricular block and an implanted pacemaker. These conditions facilitate QRST cancellation, even in the presence of time-varying flutter wave amplitude. The second approach is based on a computer model of atrial flutter embedded in a torso model featuring predetermined motion of the atria. The results suggests that this lead-dependent effect is usually not large enough to preclude reasonably accurate QRST cancellation or T-wave extraction.

Published in:

Computing in Cardiology, 2010

Date of Conference:

26-29 Sept. 2010