High-resolution esophageal long-term ECG allows detailed atrial wave morphology analysis in case of atrial ectopic beats

Niederhauser, Thomas ; Marisa, Thanks ; Haeberlin, Andreas ; Goette, Josef ; Jacoment, Marcel ; Vogel, Rolf

In: Medical & Biological Engineering & Computing, 2012, vol. 50, no. 7, p. 769-772

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    Summary
    Detection of arrhythmic atrial beats in surface ECGs can be challenging when they are masked by the R or T wave, or do not affect the RR-interval. Here, we present a solution using a high-resolution esophageal long-term ECG that offers a detailed view on the atrial electrical activity. The recorded ECG shows atrial ectopic beats with long coupling intervals, which can only be successfully classified using additional morphology criteria. Esophageal high-resolution ECGs provide this information, whereas surface long-term ECGs show poor atrial signal quality. This new method is a promising tool for the long-term rhythm monitoring with software-based automatic classification of atrial beats