Details of the procedure and short-term and long-term outcomes in good and poor responders
| All patients (n=47) | Good responders (n=29) | Poor responders (n=18) | P values | |
| Procedure | ||||
| Number of injected septal arteries | 2.3±1.0 | 2.5±1.0 | 1.9±0.9 | 0.08 |
| Volume of ethanol (mL) | 3.7±1.5 | 4.0±1.5 | 3.1±1.2 | 0.028 |
| Max CK (U/L) | 1450.4±667.6 | 1611.4±624.0 | 1191.0±670.2 | 0.034 |
| Postprocedural resting peak LVOT PG (mm Hg) | 20.7±31.5 | 22.8±33.9 | 17.3±27.9 | 0.57 |
| Outcomes | ||||
| In-hospital, n (%) | ||||
| Death | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| VT/VF | 2 (4.3) | 2 (6.9) | 0 (0.0) | 0.26 |
| Complete AV block | 6 (12.8) | 4 (13.8) | 2 (11.1) | 0.79 |
| New ICD/pacemaker implantation | 3 (6.4) | 3 (11.1) | 0 (0.0) | 0.20 |
| Stroke | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| Cardiac tamponade | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| New atrial fibrillation | 1 (2.1) | 1 (3.4) | 0 (0.0) | 0.43 |
| 12 months, n (%) | ||||
| Death | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| VT/VF | 2 (4.3) | 1 (3.4) | 1 (5.6) | 0.73 |
| New ICD/pacemaker implantation | 1 (2.1) | 0 (0.0) | 1 (5.6) | 0.17 |
| Stroke | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| Repeated PTSMA | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
| HF admission | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1.00 |
Data are expressed as mean±SD and number (%). P value for comparison of good responders vs poor responders.
AV, atrioventricular; CK, creatine phosphokinase; HF, heart failure; ICD, implantable cardioverter defibrillator; LVOT, left ventricular outflow tract; PG, pressure gradient; PTSMA, percutaneous transluminal septal myocardial ablation; VT/VF, ventricular tachycardia/ventricular fibrillation.