Table 2.
Non-CMR tests
| Total population (n = 157) | NSVT ( n = 52) | Sustained VT (n = 88) | VF/SCD (n = 17) | P-value | |
|---|---|---|---|---|---|
| Exercise testing performed | 80 (51%) | 39 (75%) | 37 (42%) | 4 (24%) | <0.001b,c,d |
| TTE performed | 157 (100%) | 52 (100%) | 88 (100%) | 17 (100%) | – |
| LV diameter (mm) | 53 ± 11 | 52 ± 8 | 54 ± 8 | 50 ± 12 | 0.20 |
| LV dilatation | 27 (17%) | 4 (8%) | 19 (22%) | 4 (24) | 0.03b |
| LVEF (%) | 54 ± 15 | 61 ± 14 | 51 ± 14 | 54 ± 17 | 0.003b |
| LVEF impairment | 44 (28%) | 6 (12%) | 31 (35%) | 7 (41%) | 0.006b,d |
| LV wall motion abnormality | 40 (25%) | 6 (12%) | 30 (34%) | 4 (24%) | 0.003b |
| Coronary angiography performed | 113 (72%) | 27 (52%) | 69 (79%) | 17 (100%) | 0.004b,d |
| Invasive angiography | 96 (61%) | 24 (46%) | 58 (66%) | 14 (82%) | 0.02b,d |
| Computed tomography | 17 (11%) | 3 (6%) | 11 (13%) | 3 (18%) | 0.13 |
| Normal coronary arteriesa | 47 (49%) | 17 (71%) | 21 (36%) | 9 (64%) | 0.007b,c |
| Non-obstructive CADa | 20 (21%) | 4 (17%) | 16 (28%) | 0 (0%) | 0.04b,c,d |
| Obstructive CADa | 29 (30%) | 3 (13%) | 21 (36%) | 5 (36%) | 0.09 |
CAD, coronary artery disease; CMR, cardiac magnetic resonance; EF, ejection fraction; LV, left ventricle; NSVT, non-sustained VT; TTE, trans-thoracic echocardiography; VF/SCD, ventricular fibrillation/sudden cardiac death; VT, ventricular tachycardia.
a
Refers to patients with coronary angiography.
b
Significant difference between NSVT and sustained VT groups.
c
Significant difference between sustained VT and VF/SCD groups.
d
Significant difference between NSVT and VF/SCD groups.