Key result
Multielectrode high-density catheters overcome conventional mapping limits by enabling comprehensive electrogram amplitude and timing maps.
Why the study?
Conventional arrhythmia activation mapping requires time annotation, numerous catheter acquisitions, and reannotation often exceeding an electrophysiologist's ability to verify in real time.
High-resolution, live, directional mapping aims to overcome the limitations of conventional activation mapping, such as time-consuming annotation and the need to map large areas of the cardiac chamber.
Conventional arrhythmia mapping involves building activation maps from numerous catheter placements and sequential acquisitions during a stable rhythm. Multielectrode high-density (HD) catheters have enabled comprehensive and dense maps of electrogram (EGM) amplitude and timing. Despite automated algorithms, activation mapping still involves time annotation, numerous acquisitions, and reannotation—often beyond the ability of an electrophysiologist to verify during mapping. Additionally, conventional activation mapping may involve using all or most of the cardiac chamber to locate the source of arrhythmia.
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Deno et al. (2020) studied Arrhythmia. Multielectrode high-density (HD) catheters vs. Conventional arrhythmia mapping was evaluated. Multielectrode high-density catheters enable comprehensive maps of electrogram amplitude and timing, addressing the limitations of conventional activation mapping.
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