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The omnipolar mapping technology-a new mapping tool to overcome "bipolar blindness" resulting in true high-density maps.


ABSTRACT:

Background

Omnipolar mapping (OT) is a novel tool to acquire omnipolar signals for electro-anatomical mapping, displaying true voltage and real-time wavefront direction and speed independent of catheter orientation. The aim was to analyze previously performed left atrial (LA) and left ventricular (LV) maps for differences using automated OT vs. standard bipolar settings (SD) and HD wave (HDW) algorithm.

Methods

Previously obtained SD and HDW maps of the LA and LV using a 16-electrode, grid-shaped catheter were retrospectively analyzed by applying automated OT, comparing voltage, point density, pulmonary vein (PV) gaps, and LV scar area.

Results

In this analysis, 135 maps of 45 consecutive patients (30 treated for LA, 15 for LV arrhythmia) were included. Atrial maps revealed significantly higher point densities using OT (21471) vs. SD (6682) or HDW (12189, p < 0.001). Mean voltage was significantly higher using OT (0.75 mV) vs. SD (0.61 mV) or HDW (0.64 mV, p < 0.001). OT maps detected significantly more PV gaps per patient vs. SD (4 vs. 2), p = 0.001. In LV maps, OT revealed significantly higher point densities (25951) vs. SD (8582) and HDW (17071), p < 0.001. Mean voltage was significantly higher for OT (1.49 mV) vs. SD (1.19 mV) and HDW (1.2 mV), p < 0.001. Detected scar area was significantly smaller using OT (25.3%) vs. SD (33.9%, p < 0.001).

Conclusion

OT mapping leads to significantly different substrate display, map density, voltage, detection of PV gaps, and scar size, compared to SD and HDW in LA and LV procedures. Successful CA might be facilitated due to true HD maps.

SUBMITTER: Dittrich S 

PROVIDER: S-EPMC10901967 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

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The omnipolar mapping technology-a new mapping tool to overcome "bipolar blindness" resulting in true high-density maps.

Dittrich Sebastian S   Scheurlen Cornelia C   van den Bruck Jan-Hendrik JH   Filipovic Karlo K   Wörmann Jonas J   Erlhöfer Susanne S   Schipper Jan-Hendrik JH   Lüker Jakob J   Steven Daniel D   Sultan Arian A  

Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing 20230525 2


<h4>Background</h4>Omnipolar mapping (OT) is a novel tool to acquire omnipolar signals for electro-anatomical mapping, displaying true voltage and real-time wavefront direction and speed independent of catheter orientation. The aim was to analyze previously performed left atrial (LA) and left ventricular (LV) maps for differences using automated OT vs. standard bipolar settings (SD) and HD wave (HDW) algorithm.<h4>Methods</h4>Previously obtained SD and HDW maps of the LA and LV using a 16-electr  ...[more]

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