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• W4377015324 abstract "New emerging mapping and ablation technologies are examined to improve acute success of ablations, while minimizing procedure time and procedure cost. Both ultra-low temperature cryoablation (ULTC) and pulsed field cryoablation (PFCA) ablations shown to create durable transmural lesions using mapping-capable catheters of similar design, except for size, number and spacing of electrodes. The accuracy and efficiency of left atrium (LA) mapping with a novel wide-band dielectric mapping system (Kodex™, Philips, Inc) using multielectrode catheters capable of delivering ULTC or PFCA catheters is unknown. The goal was to test the accuracy of the anatomic rendering of LA by Kodex using ULTC catheter (iCLAS™, Adagio Medical) and PFCA catheter (Cryopulse™, Adagio Medical) compared to Kodex map created with decapolar circular mapping catheter (CMC, Lasso™, Biosense Webster) The pre-ablation Kodex maps of LA were obtained using CMC, ULTC and PFCA catheters in swine. Ten linear measurements characterizing LA anatomy were collected from each of the maps in post-ant and PANO view and compared using Spearman correlation, along with time required to collect each of the maps. Three PFA lesions were created and remapped after each lesion using PFCA and CMC catheter after the last lesion. The average Kodex mapping times were 23:07 min when using CMC, 14:15 min when using ULTC catheter and 11:13 min when using PFCA catheter. The correlation coefficients for pre-ablation measurements were r=0.918, p<0.001 for CMC vs ULTC catheters, r=0.891, p<0.001 for ULTC vs PFCA catheters and r=0.930, p<0.001 for CMC vs PFCA catheters. The mean difference between measurements were 3.4 mm for CMC vs ULTC catheters, 1.1 mm for ULTC vs PFCA catheters, 2.3 mm for CMC vs PFCA catheters. The voltage maps created with PFCA catheter showed clear growth of the ablated area and were in good qualitative agreement to the final CMC map. The accuracy of the anatomic mapping of LA did not change significantly between traditional mapping, ULTC and PFCA catheters post-ablation electrical maps showed clinically reasonable agreement, which is likely to improve by optimizing compatibility with the Kodex system. Short mapping times and consistent accuracy make it practical to use ULTC and PFCA catheters to create multiple Kodex maps during ablation procedures with incremental impact on procedure time and without additional expense of dedicated mapping catheter." @default.
• W4377015324 created "2023-05-19" @default.
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• W4377015324 date "2023-05-01" @default.
• W4377015324 modified "2023-10-01" @default.
• W4377015324 title "PO-03-121 INITIAL PRECLINICAL ASSESSMENT OF LEFT ATRIAL ANATOMY IMAGING USING KODEX MAPPING SYSTEM WITH ULTRA-LOW TEMPERATURE CRYOABLATION AND PULSED FIELD CRYOABLATION CATHETERS: IMPLICATIONS FOR PROCEDURAL FLOW AND COSTS OF LEFT ATRIAL ABLATION PROCEDURES" @default.
• W4377015324 doi "https://doi.org/10.1016/j.hrthm.2023.03.1021" @default.
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