Table 1.
Demographic and imaging characteristics of G + LVH- compared to controls
| Characteristics | G + LVH- | Controls | Univariate |
|---|---|---|---|
| (n = 36) | (n = 36) | p value | |
| Male gender, n (%) | 12 (33) | 12 (33) | >0.99 |
| Age, years | 31.3 ± 13.8 | 33.4 ± 12.2 | 0.053 |
| Ethnicity* | A = 35 | A = 35 | >0.99 |
| D = 1 | D = 1 | 0.60 | |
| Body surface area, m2 | 1.8 ± 0.2 | 1.8 ± 0.2 | 0.60 |
| Septal wall thickness, mm | 8.9 ± 1.9 | 8.4 ± 1.2 | 0.13 |
| Posterior wall thickness, mm | 6.4 ± 1.4 | 6.4 ± 1.4 | 0.86 |
| Septal/posterior wall thickness ratio | 1.41 ± 0.31 | 1.36 ± 0.31 | 0.59 |
| LV mass index, g/m2 | 57.8 ± 11.7 | 59.1 ± 12.8 | 0.65 |
| Relative wall thickness | 0.31 ± 0.05 | 0.29 ± 0.04 | 0.039 |
| LV end-diastolic volume index, mL/m2 | 73.2 ± 9.8 | 74.4 ± 11.2 | 0.60 |
| LV end-systolic volume index, mL/m2 | 21.4 ± 4.4 | 23.7 ± 5.8 | 0.048 |
| LV ejection fraction, % | 70.8 ± 4.3 | 68.3 ± 4.4 | 0.022 |
| LV long axis end-diastolic diameter, mm | 92.2 ± 7.6 | 92.7 ± 6.3 | 0.63 |
| LV transversal end-diastolic diameter, mm | 47.3 ± 3.7 | 48.8 ± 3.9 | 0.10 |
| LV end-diastolic sphericity index | 0.52 ± 0.05 | 0.54 ± 0.05 | 0.21 |
| LV end-diastolic eccentricity index | 0.90 ± 0.06 | 0.90 ± 0.06 | 0.62 |
| LV end-systolic eccentricity index | 0.88 ± 0.06 | 0.89 ± 0.07 | 0.55 |
| LV-mitral angle,° | 83.2 ± 5.7 | 83.6 ± 3.5 | 0.54 |
| Mitral papillary muscles angle,° | 112.4 ± 20.0 | 109.3 ± 15.6 | 0.44 |
| LV-aortic root angle,° | 137.9 ± 7.7 | 137.1 ± 7.2 | 0.84 |
| LV outflow tract-basal septum angle,° | 141.9 ± 14.9 | 142.5 ± 14.7 | 0.82 |
| Septal convexity (A4C) into LV (SCx), mm | 5.0 ± 2.5 | 1.6 ± 2.4 | <0.0001 |
| Septal convexity Sax1 at PM level | 10.7 ± 3.7 | 12.0 ± 3.1 | 0.11 |
| Septal convexity Sax2 at PM level | 10.1 ± 3.4 | 11.5 ± 3.5 | 0.098 |
| Septal convexity Sax3 at PM level | 8.9 ± 3.3 | 9.8 ± 3.9 | 0.37 |
| Myocardial crypts (≥1), n (%) | 11 (30 %) | 3 (8 %) | 0.017 |
| LVOT end-diastolic diameter, mm | 21.8 ± 2.4 | 21.6 ± 1.9 | 0.73 |
| LVOT end-systolic diameter, mm | 18.2 ± 2.2 | 18.8 ± 2.0 | 0.21 |
| Anterior mitral valve leaflet length, mm | 23.5 ± 3.0 | 19.9 ± 3.1 | <0.0001 |
| Mitral valve annulus diameter, mm | 29.4 ± 3.9 | 30.7 ± 3.2 | 0.18 |
| Left atrial area index, cm2/m2 | 10.9 ± 1.5 | 10.7 ± 1.4 | 0.73 |
*Ethnic headings are defined in accordance with UK Office for National Statistics guidance on national standards: A indicates white; B, mixed; C, Asian or Asian Black
D, black or Black British; E, Chinese or other ethnic group (including Arab)
LV Left ventricular, A4C Apical 4 chamber view, PM Papillary muscles, SAX Short axis views at 10 mm interval at PMs level (1,2,3), LVOT Left ventricular outflow tract