Key result
Ultrahigh resolution mapping linked to lower EGM noise than standard catheters and ~97% AT termination.
Why the study?
Does mapping with the IntellaMap Orion basket and Rhythmia system accurately identify the critical isthmus and facilitate successful ablation in scar-related atrial tachycardia?
Population
33 scar-related atrial tachycardias (post-atrial fibrillation ablation or surgical mitral valve repair)
Comparison
Mapping with the IntellaMap Orion basket and the… vs Standard catheter and surface ECG
Design
Cohort
Authors
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May aid ablation target identification in scar-related AT; leaves open need for randomized trials before wider adoption.
Observational (n=33)
Does mapping with the IntellaMap Orion basket and Rhythmia system accurately identify the critical isthmus and facilitate successful ablation in scar-related atrial tachycardia?
Absolute Event Rate: 0.011% vs 0.016%
p-value: p=<0.05
Ultrahigh resolution mapping with the Orion basket and Rhythmia system accurately identifies the critical isthmus in scar-related atrial tachycardias, leading to a 97% acute ablation success rate.
Lațcu et al. (2016) conducted an observational in Scar-related atrial tachycardia (n=33). IntellaMap Orion basket and Rhythmia system vs. Standard catheter was evaluated on Noise of bipolar electrogram (mV) (p=<0.05). Ultrahigh resolution mapping with the IntellaMap Orion and Rhythmia system produced lower EGM noise than standard catheters (0.011 vs 0.016 mV, P<0.05) and led to AT termination in 97% of cases.
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