Table 1.
Baseline Characteristics Of 41 Scd Cases And 123 Controls (No Scd)
| SCD, n = 41 | No SCD, n = 123 | P | |
|---|---|---|---|
| Age, y | 45.6 ± 15 | 45.6 ± 15 | 1.0 |
| Male | 27 (66) | 81 (66) | 1.0 |
| NYHA III/IV | 18 (44) | 41 (33) | 0.2 |
| Maximum LVWT, mm | 22 ± 5 | 21 ± 5 | 0.4 |
| Left atrial size, mm | 48 ± 10 | 45 ± 8 | 0.07 |
| LVOT gradient, mm Hg | 54 ± 48 | 51 ± 44 | 0.9 |
| Left ventricular function | |||
| End diastolic diameter, mm | 45 ± 6 | 42 ± 6 | 0.07 |
| Fractional shortening, % | 45 ± 9 | 42 ± 9 | 0.2 |
| Reduced ejection fraction (<55%) | 9 (17) | 9 (7) | 0.02 |
| Diastolic dysfunction | 21 (51) | 70 (57) | 0.7 |
| Risk factors for SCD | |||
| SCD in family history | 9 (22) | 21 (17) | 0.5 |
| nsVT on Holter monitoring | 9 (22) | 19 (15) | 0.3 |
| Abnormal exercise BP response | 5 (12) | 7 (6) | 0.6 |
| Syncope | 12 (30) | 23 (19) | 0.08 |
| LVWT ≥30 mm | 8 (20) | 10 (8) | 0.2 |
| ≥2 risk factors | 11 (27) | 17 (14) | 0.06 |
| Medication | |||
| β‐Blocker | 14 (34) | 60 (49) | 0.1 |
| Calcium channel blocker | 11 (27) | 35 (28) | 0.8 |
| Amiodarone | 4 (10) | 4 (3) | 0.09 |
Abbreviations: BP, blood pressure; LVOT, left ventricular outflow tract; LVWT, left ventricular wall thickness; nsVT, nonsustained ventricular tachycardia; NYHA, New York Heart Association; SCD, sudden cardiac death.
Data are presented as number (percentage) unless stated otherwise.