Clinical baseline data in 25 patients with HOCM
| n (%) | |
| Women | 13 (52) |
| Family history of HOCM or sudden cardiac death | 10 (40) |
| Complications of HOCM | |
| History of syncopal attacks | 11 (44) |
| History of acute left heart failure/pulmonary oedema | 6 (24) |
| Documented supraventricular tachyarrhythmia | 10 (40) |
| Comorbidity | |
| Pulmonary (COPD, restrictive abnormalities) | 3 (12) |
| Systemic arterial hypertension | 5 (20) |
| Treatment before PTSMA | |
| β Blocker | 7 (28) |
| Verapamil | 17 (68) |
| Prior DDD pacemaker implantation | 2 (8) |
| Prior surgical myectomy | 3 (12) |
COPD, chronic obstructive pulmonary disease.