Research Article
Classification of Left Atrial Diseased Tissue Burden Determined by Automated Voltage Analysis Predicts Outcomes after Ablation for Atrial Fibrillation
Table 2
Baseline and procedural characteristics.
| | Baseline and procedural characteristics () |
| | Gender (female) | 26 | (24%) | | Median age (years) | 62 | [55-70] | | Median BMI (kg/m2) | 28 | [26-31] | | Persistent AF | 34 | (31%) | | CHA2DS2-VASc | 41 | (38%) | | LVEF <50% | 8 | (7%) | | Hypertension | 39 | (36%) | | Diabetes mellitus | 0 | (0%) | | Prior stroke or TIA | 5 | (5%) | | Vascular disease | 16 | (15%) | | Coronary artery disease | 10 | (9%) | | Underlying heart disease | 16 | (15%) | | Prior CTI ablation | 8 | (7%) | | Median LAV (CTA) (ml) | 142 | [124-169] | | Median no. of mapped LA points | 958 | [658-1257] | | Mapping time (min) | 10 | [8-14] | | Dense LA Scar (≤0.2 mV) (%) | 2.49 | [0.54-7.17] | | Diseased LA Tissue (≤0.5 mV) (%) | 15.85 | [6.94-28.41] |
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AF: atrial fibrillation; BMI: body mass index; CTA: computed tomography angiography; CTI: cavotricuspidal isthmus; LA: left atrium; LAV: left atrial volume; LVEF: left ventricular ejection fraction; TIA: transient ischaemic attack.
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