Demographic and echocardiographic data according to the presence of a RV dysfunction defined by a RV-FAC < 35%.
| Variables | No RV dysfunction (n=19) | RV dysfunction (n=10) | p |
|---|---|---|---|
| Age (years) | 64 [59-69] | 63 [59-67] | 0.57 |
| BMI (kg.m-2) | 30.5 [28-34] | 30 [29-32] | 0.66 |
| Biological data before TTE/TEE | |||
| BNP (pg.ml) | 62 [50-147] | 54 [42-60] | 0.10 |
| Troponine Tc HS (ng.ml) | 22 [11-63] | 23 [4-97] | 0.80 |
| RV Parameters | |||
| RV basal dimension (mm) | 47 [40-52] | 49 [41-55] | 0.49 |
| RV mid-cavity dimension (mm) | 35 [32-40] | 40 [34-44] | 0.10 |
| RV longitudinal dimension (mm) | 76 [63-81] | 74 [64-78] | 0.87 |
| RV EDA indexed to BSA (cm2.m-2 | 7.6 [6.6-9.1] | 8.9 [6.9-10.4] | 0.22 |
| RV ESA indexed to BSA (cm2.m2) | 3.9 [3.3-4.6] | 5.8 [4.8-7.3] | 0.001 |
| RV EDA/LV EDA | 0.55 [0.48-0.63] | 0.70 [0.51-0.79] | 0.16 |
| Septal dyskinesia, (n; %) | 5 (26) | 7 (70) | 0.04 |
| ACP, (n; %) | 5 (26) | 7 (70) | 0.04 |
| RA volume indexed to BSA (ml.m2) | 19 [15-22] | 19 [9.5-26] | 0.75 |
| RV stroke volume indexed to BSA (ml.m2) | 31 [26-34] | 36 [28-43] | 0.28 |
| ATRVOT (msec) | 100 [80-130] | 90 [80-107] | 0.51 |
| RA pressure (mmHg) | |||
| > 15 mmHg | 5 (26) | 3 (30 | 1 |
| < 15 mmHg | 14 (74) | 7 (70) | - |
| Left ventricular ejection fraction (%) | 66 [55-72] | 62 [55-70] | 0.28 |
| Classical RV Systolic Function Parameters | |||
| TAPSE (mm) | 24 [21-26] | 22 [20-25] | 0.28 |
| RV- S’ (cm.s) | 18 [13-20] | 14 [13-19] | 0.77 |
| RV-FAC (%) | 50 [42-55] | 32 [28-34] | <0.001 |
| 2D-STE parameters | |||
| RVGLS (%) | -29.0 [19.5-31.0] | -19.5 [16.7-25.6] | 0.09 |
| RVFWLS (%) | -29.3 [21.0-31.8] | -22.6 [17.3-30.5] | 0.28 |
| TAD parameters | |||
| TADlat (mm) | 21[16 -28] | 13 [11-20] | 0.008 |
| TADsep(mm) | 10 [8-13] | 7 [5-9.5] | 0.050 |
| RV-LSF (%) | 25 [21-29] | 15 [11-20] | 0.002 |
Continuous variables are expressed as median [interquartile range] and categorical variables as number (percentage). Comparison was made between RV dysfunction and non-RV dysfunction group. P<0.05 was considered as significant.
2D-STE: bi-dimensionnel speckle tracking echocardiography. ACP: acute cor pulmonale. ATRVOT: right ventricular outflow tract acceleration time. BMI: body mass index. BNP: brain natriuretic peptide. EDA: end diastolic area. ESA: end systolic area. FAC: fractional area change. LV: left ventricle. RA: right atrium. RV: right ventricle. RVFWLS: right ventricle free wall longitudinal strain. RVGLS: right ventricle global longitudinal strain. RV-LSF: RV longitudinal shortening fraction. TAPSE: tricuspid annular plane systolic excursion. TEE: transoesophageal echocardiography. TAD: Tricuspid annular displacement TTE: transthoracic echocardiograph