Table 2.
Electrophysiological Characteristics
| Fat Deposition (+) 1072 Points | Fat Deposition (−) 768 Points | P Value | |
|---|---|---|---|
| LV volume Carto, mL | 297±115 | 284±105 | 0.76 |
| Total mapped area, cm2 | 272±68 | 284±64 | 0.64 |
| Unipolar low voltage area <8.3 mV, cm2 | 109 [60–125] | 85 [55–109] | 0.48 |
| Bipolar low voltage area <1.5 mV, cm2 | 75 [45–104] | 60 [33–82] | 0.26 |
| Bipolar low voltage area <0.5 mV, cm2 | 22 [13–46] | 14 [9–34] | 0.11 |
| Bipolar voltage, mV | 0.5 [0.3–0.9] | 0.8 [0.4–1.4] | <0.001a |
| Unipolar voltage, mV | 3.5 [2.3–4.8] | 3.6 [2.3–5.4] | 0.12 |
| Median EGM duration, ms | 99 [83–120] | 89 [70–111] | <0.001a |
| LAVA prevalence (% of scar EGMs) | 23±18 | 34±22 | 0.22 |
| LAVA delay to local EGM, ms | 75 [45–106] | 52 [22–90] | <0.001a |
| LAVA bipolar amplitude, mV | 0.22 [0.14–0.35] | 0.29 [0.16–0.66] | <0.001a |
Data expressed as mean±SD when following a normal distribution, and median [Q1–Q3] otherwise. EGM indicates electrogram; LAVA, local abnormal ventricular activity; LV, left ventricle.
a
P≤0.05.