Table 2.
Electrocardiographic and echocardiographic indices of HCM patients.
| No HTN (n = 172) | HTN (n = 90) | P-value | |
|---|---|---|---|
| Electrocardiography | |||
| LV high voltage | 95 (60%) | 57 (70%) | >0.05 |
| Sinus rhythm | 116 (73%) | 63 (78%) | >0.05 |
| P-mitrale | 26 (16%) | 28 (35%) | <0.01 |
| PR duration (s) | 159 ± 31.5 | 166 ± 30.9 | 0.18 |
| QRS duration (s) | 105 ± 23.1 | 103 ± 23.5 | 0.55 |
| Right bundle branch block | 15 (9%) | 4 (5%) | >0.05 |
| Left bundle branch block | 8 (5%) | 4 (5%) | >0.05 |
| Left anterior fascicular block | 20 (12%) | 7(9%) | >0.05 |
| Atrioventricular nodal block >1st degree | 7 (4%) | 4 (5%) | >0.05 |
| Echocardiography | |||
| Interventricular septum (mm) | 19 ± 5.3 | 18 ± 5.8 | 0.29 |
| Thickest basal part | 18 (10%) | 10(11%) | >0.05 |
| LV ejection fraction (%) | 59 ± 9.3 | 60 ± 8.1 | 0.22 |
| Left atrial diameter (mm) | 41 ± 6.7 | 42 ± 5.6 | 0.34 |
| LV diastolic dimension (mm) | 44 ± 7.4 | 47 ± 12.3 | 0.019 |
| Mitral regurgitation >mild | 48 (28%) | 32 (36%) | >0.05 |
| SPAP ≥ 45 mmHg | 17 (10%) | 9 (10%) | >0.05 |
| Mid ventricular obstruction | 26 (15%) | 23 (26%) | <0.05 |
| LVOT obstruction | 37(22%) | 18 (20%) | >0.05 |
| Apical HCM | 12 (7%) | 16 (18%) | <0.01 |
| LVOT PG, mmHg | 70 ± 5.1 | 52 ± 6.2 | <0.05 |
| Diastolic dysfunction - any grade | 129 (81%) | 65 (80%) | >0.05 |
Categorical parameters are presented as n(%). Continuous variables are expressed as mean and standard deviation. LV, left ventricular; SPAP, estimated systolic pulmonary arterial pressure; LVOT, LV outflow tract; PG, pressure gradient; HCM, hypertrophic cardiomyopathy.