Clinical and echocardiographic characteristics at baseline, at early postdischarge clinical check-up and at the last check-up
| LVOTO <30 mm Hg N=208 | LVOTO ≥30 mm Hg N=62 | p Value | |
|---|---|---|---|
| Age, years | 58.9±11.9 | 57.9±14.1 | 0.559 |
| Sex, females, % | 109 (52.4) | 34 (54.8) | 0.773 |
| Alcohol, mL | 1.7±0.8 | 1.8±0.6 | 0.123 |
| CKMB max, μkat/L | 3.0±2.1 | 2.8±1.4 | 0.806 |
| Dyspnoea, NYHA class | |||
| Baseline | 2.9±0.5 | 3.0±0.5 | 0.498 |
| Early post-ASA check-up | 1.6±0.7 | 1.9±0.7 | 0.003 |
| Last clinical check-up | 1.7±0.7 | 2.0±0.7 | 0.003 |
| Angina, CCS class | |||
| Baseline | 1.5±1.2 | 1.4±1.3 | 0.356 |
| Early post-ASA check-up | 0.3±0.6 | 0.4±0.8 | 0.779 |
| Last clinical check-up | 0.2±0.5 | 0.3±0.6 | 0.727 |
| Left ventricular outflow gradient, mm Hg | |||
| Baseline | 64.1±39.5 | 92.8±39.8 | <0.001 |
| Early post-ASA check-up | 12.8±6.0 | 49.9±26.5 | <0.001 |
| Last clinical check-up | 13.3±11.4 | 33.2±29.7 | <0.001 |
| Left ventricular diameter, mm | |||
| Baseline | 42.4±5.3 | 42.8±6.1 | 0.690 |
| Early post-ASA check-up | 45.4±5.1 | 45.7±5.8 | 0.684 |
| Last clinical check-up | 46.5±5.2 | 46.7±5.9 | 0.764 |
| Left ventricular ejection fraction, % | |||
| Baseline | 73.2±9.9 | 71.3±9.9 | 0.169 |
| Early post-ASA check-up | 70.3±10.1 | 69.6±9.4 | 0.409 |
| Last clinical check-up | 68.5±8.7 | 67.3±10.2 | 0.303 |
| Basal septum thickness, mm | |||
| Baseline | 20.5±4.1 | 22.4±5.9 | 0.009 |
| Early post-ASA check-up | 15.8±4.9 | 18.7±5.2 | <0.001 |
| Last clinical check-up | 13.5±3.6 | 16.2±4.6 | <0.001 |
| Left atrium diameter, mm | |||
| Baseline | 46.2±6.0 | 48.1±7.4 | 0.043 |
| Early post-ASA check-up | 45.2±5.9 | 47.0±7.2 | 0.052 |
| Last clinical check-up | 46.4±6.7 | 48.2±7.4 | 0.075 |
| Mean follow-up duration, years | 5.8±4.1 | 5.2±4.0 | |
ASA, alcohol septal ablation; CCS, Canadian Cardiovascular Society; LVOTO, left ventricular outflow tract obstruction.