PO-03-100 A VALIDATION STUDY OF THE ACCURACY OF THE ATRIAL PACE MAP ASSESSED WITH INTRACARDIAC PATTERN MATCHING: POTENTIAL UTILITY OF NON-PULMONARY VEIN MAPPING

The elimination of all non-PV triggers is known to be an additional strategy for the PVI AF. However, activation mapping infrequent challenging. We hypothesized that pace assessed by intracardiac pattern matching (ICPM) with CARTO3 system yields a good diagnostic performance locate atrial premature complexes (APCs). Furthermore, we whether combined use both electrograms ICPM improved accuracy as compared using only in LA. In 16 patients, pacing at 21 sites (LA anterior: 5, LA posterior: 8, septum: 3, and RA lateral: 5) was arbitrarily determined APC foci, sequence obtained set reference. score during around focus. CS (CS group) or those from (CS-RA group). surface area measured each score. mean number 213±113 points similar between CS-RA groups (181±81 vs. 237±114 points, P=0.09). By ICPM, maximum scores ≥90% were origins groups. At least 1 site ≥98% more often group than (14/21 APCs [67%] 7/21 [33%], P=0.03), but ≥95% similarly (17/21 [81%] 19/21 [90%], P=0.66). (0.2 [0.1, 1.3] 0.35 5.5] cm2, P=0.23), smaller 0.4] 0.6 [0.15, 4.8] P=0.03). Of origins, equal 0.5] 0.5 P=0.19), it 2.3] 8 [0.3, 13.0] P=0.05) (Figure). ICPM-guided may useful APCs. A improve quality essential identifying RF applications targeting reasonable trigger ablation.