Does the OCTARAY catheter improve mapping efficacy compared to the PENTARAY catheter in patients undergoing ablation for persistent atrial fibrillation?
The OCTARAY catheter provides faster mapping with higher point density compared to the PENTARAY catheter in patients undergoing repeat ablation for persistent atrial fibrillation.
BACKGROUND: catheter METHODS: Twelve consecutive patients who underwent initial and second ablations for persistent atrial fibrillation within 2 years were considered for enrollment. Voltage mapping was performed twice, first during the initial ablation using the PENTARY catheter and second during the second ablation using the OCTARAY Long 3-3-3-3-3 (L3) catheter. RESULTS: , p < .0001). The OCTARAY-L3 catheter demonstrated greater efficacy than the PENTARAY catheter in terms of shorter mapping time (606 ± 99 vs. 782 ± 211 s, p = .008) and more mapping points (3,026 ± 838 vs. 781 ± 342 points, p < .0001). CONCLUSION: The OCTARAY catheter demonstrated higher voltage recordings, narrower low-voltage areas, and a more efficacious mapping procedure than the PENTARAY catheter.
Masuda et al. (Wed,) studied this question.