Table 1.
Baseline characteristics of the studies included in the review.
| References | Country | N | Age (years) | Male (%) | Follow up (years) | Baseline resting LVOTG (mmHg) | Baseline septal thickness (mm) | Baseline NYHA class |
|---|---|---|---|---|---|---|---|---|
| Septal myectomy, age ≥18y | ||||||||
| Mazine et al. (12) | Canada | 25 | 53.3 ± 10.7 | N | 1.3 | 78.4 ± 29.8 | 21.7 ± 2.5 | 2.9 |
| Yao et al. (13) | China | 139 | 43.0 ± 15.0 | 37 | 5.6 | 84.0 ± 17.0 | 22.2 | 2.7 |
| Lai et al. (14) | China | 236 | 49.3 ± 12.8 | 57 | 3.0 | 79.0 ± 41.7 | 22.2 ± 7.9 | 2.4 |
| Rastegar et al. (15) | USA | 482 | 52.0 ± 14.0 | 57 | 3.5 | 56.4 ± 42.4 | 20.1 ± 4.7 | 3.0 |
| Vanderlaan et al. (16) | Canada | 150 | 51.6 ± 14.2 | 62 | 0.1 | 67.0 ± 38.0 | 21.0 ± 4.3 | 2.8 |
| An et al. (17) | China | 118 | 38.5 ± 14.1 | 77 | 5.1 | 85.8 ± 37.3 | 33.0 ± 3.7 | 2.7 |
| Cavigli et al. (18) | Italy | 71 | 48.0 ± 15.0 | 62 | 4.2 | 52.0 ± 31.0 | 24.0 ± 5.0 | 2.7 |
| Vrancic et al. (19) | Argentina | 28 | 53.3 ± 13.4 | 54 | 1.5 | 55.1 ± 21.9 | 21.9 ± 4.5 | N |
| Nguyen et al. (20) | USA | 334 | 64.7 ± 10.0 | 46 | 0.6 | 86.4 ± 25.3 | N | 3.0 |
| Afanasyev et al. (21) | Russia | 345 | 55.0 ± 13.4 | 45 | 3.2 | 83.4 ± 24.2 | 24.5 ± 4.6 | 2.6 |
| Antal et al. (22) | Turkey | 41 | 49.8 ± 13.3 | 66 | 3.2 | 116.7 ± 37.4 | 23.5 ± 4.1 | 3.3 |
| Islam et al. (23) | Bangladesh | 21 | 39.8 ± 14.0 | 67 | N | 81.6 ± 17.1 | 20.7 ± 3.9 | 3.0 |
| Lapenna et al. (24) | Italy | 26 | 59.0 ± 12.0 | 77 | 6.0 | 63.0 ± 20.0 | 17.0 ± 3.0 | 2.7 |
| Sun et al. (25) | USA | 196 | 48.4 ± 15.7 | 50 | 2.9 | 49.7 ± 40.3 | 23.0 ± 7.2 | 3.1 |
| Septal myectomy, age < 18y | ||||||||
| Xu et al. (26) | China | 40 | 11.3 ± 4.3 | 68 | 2.0 | 80.1 ± 33.8 | 27.2 ± 8.0 | 2.3 |
| Laredo et al. (27) | France | 79 | 8.3 ± 4.1 | 72 | 6.0 | 104.8 ± 41.6 | 23.3 | 2.5 |
| Schleihau et al. (28) cohort 1 | Germany | 12 | 0.7 ± 0.3 | 67 | N | 94.1 ± 25.7 | N | 3.0 |
| Schleihau et al. (28) cohort 2 | Germany | 11 | 10.8 ± 5.0 | 55 | N | 85.4 ± 29.2 | N | 3.1 |
| Zhu et al. (29) | China | 117 | 11.3 ± 4.7 | 64 | 3.2 | 76.7 ± 28.2 | 23.7 ± 8.4 | 2.5 |
| Endocardial radiofrequency ablation, age ≥18y | ||||||||
| Lawrenz et al. (30) | Germany | 19 | 60.7 ± 12.0 | N | 0.5 | 87.4 ± 34.7 | 22.6 ± 3.7 | 3.0 |
| Cooper et al. (31) | UK | 5 | 57.6 ± 9.0 | 20 | 0.5 | 64.3 ± 50.6 | 18.3 ± 1.9 | 3.0 |
| Crossen et al. (32) | USA | 11 | 62.0 ± 9.0 | 36 | 1.0 | 66.7 ± 37.9 | 21.0 | 3.0 |
| Shelke et al. (33) | India | 7 | 43.7 ± 15.6 | 71 | 1.0 | 81.0 ± 14.8 | N | 3.0 |
| Beaser et al. (34) | USA | 5 | 61.0 | 40 | 0.1 | 68.7 ± 45.3 | 19.8 ± 4.5 | 3.0 |
| Zuo et al. (35) | China | 30 | 45.6 ± 15.7 | 67 | 1.0 | 95.0 | 23.3 ± 4.1 | 2.3 |
| Endocardial radiofrequency ablation, age < 18y | ||||||||
| Sreeram et al. (36) | UK, Germany | 32 | 10.3 ± 4.3 | 59 | 4.0 | 96.9 ± 27.0 | N | N |
LVOTG, left ventricular outflow tract gradient; N, not documented; NYHA, New York Heart Association.