Visualizing Localized Reentry With Ultra–High Density Mapping in Iatrogenic Atrial Tachycardia
Key result
Ultra-high density mapping reveals ~86% of small rotatory activations in atrial tachycardia are pseudo-reentrant.
- n=15
Population
15 patients (age: 64±11 years) with 23 left-sided iatrogenic atrial tachycardias
Design
Case_series
Authors
Discussion
Loading...
Member takes
Implication
Small rotational activations on ultra-high-density maps require cautious interpretation to avoid mistaking pseudo-reentry for localized reentry; this case report leaves open their true prevalence.
Study Design
Type
Observational (n=15)
Structured PICO
P
Population
15 patients (age: 64±11 years) with 23 left-sided iatrogenic atrial tachycardias
I
Intervention
Ultra-high density mapping using the Rhythmia mapping system and targeted ablation
O
Outcome
Identification and characterization of localized reentry (LR) activation patterns (carousels)surrogate
Ultra-high density mapping reveals that while localized reentry appears as small rotational activations, most of these 'carousels' are pseudo-reentrant artifacts requiring careful electrogram interpretation to avoid inappropriate ablation.
Cite This Study
Luther et al. (2017) conducted an observational in Iatrogenic Atrial Tachycardia (n=15). Ultra-high density mapping (Rhythmia) was evaluated on Identification of localized reentry (LR) vs pseudo-reentrant carousels. Ultra-high density mapping of atrial tachycardia showed that only 14% (7/50) of small rotatory activations were true localized reentry, whereas 86% were pseudo-reentrant.