Table 2.
Interventions (catheter and surgical) during follow‐up
| Intervention | N | ||
|---|---|---|---|
| ICD | Primary | 6 | |
| Secondary | 3 | ||
| Unknown indication | 1 | ||
| Pacemaker | Sinoatrial disease | 2 | |
| AV block | 3 | ||
| Surgery | RVOT relief | 18 | |
| RVOT Patch | 11 | ||
| Valvotomy | 4 | ||
| Suprapulmonary PS relief (patch) | 1 | ||
| RVOT conduit | 1 | ||
| Unknown | 1 | ||
| Myectomy | 28 | ||
| With MV repair | 6 | ||
| Aortic valvotomy | 3 | ||
| Other cardiac surgery | ASD closure | 3 | |
| PDA ligation | 4 | ||
| Coarctation repair | 2 | ||
| LVAD | 2 | ||
| Sympathectomy | 1 | ||
| Multiple surgical procedures | Myectomy | 2 (n = 3), 3 (n = 1) | |
| Mitral valve replacement | 2 (previous MV plasty + myectomy; previous MV repair + RVOT relief) | ||
| RVOT relief followed by myectomy | 2 | ||
| Catheter interventions | Balloon pulmonary valvuloplasty | 9 (7 of whom required subsequent surgical intervention) | |
| PDA closure | 1 | ||
| EPS | Ablation | 5 (symptomatic SVT n = 4, WPW n = 1) | |
ASD, atrial septal defect; AV, atrioventricular; EPS, electrophysiology study; ICD, implantable cardioverter defibrillator; LVAD, left ventricular assist device; MV, myectomy; PDA, patent ductus arteriosus; PS, pulmonary stenosis; RVOT, right ventricular outflow tract; SVT, supraventricular tachycardia; WPW, Wolff–Parkinson–White syndrome.