Table 2.
Comparison of conventional parameters between systemic lupus erythematosus patients (groups B, C and D) and control group (Group A) (x ± s)
| Parameters | Group A (n = 30) | Group B (n = 37) | Group C (n = 34) | Group D (n = 31) | Reference normal value@ |
|---|---|---|---|---|---|
| LVEF, % | 64.51 ± 3.11 | 63.69 ± 6.61 | 62.11 ± 4.87 | 63.01 ± 4.86 | ≥ 50 |
| RVAW, cm | 0.36 ± 0.05 | 0.40 ± 0.03 | 0.43 ± 0.06 | 0.69 ± 0.09$*# | 0.1-0.5 |
| RVED, cm | 2.98 ± 0.43 | 3.11 ± 0.45 | 3.22 ± 0.39 | 3.65 ± 0.36$*# | 1.9-3.5 |
| TAPSE, cm | 2.24 ± 0.21 | 2.21 ± 0.19 | 1.76 ± 0.22 | 1.2 ± 0.18$*# | > 1.7 |
| RV FAC, % | 50.45 ± 4.67 | 49.24 ± 4.81 | 42.69 ± 5.07 | 34.43 ± 3.95$*# | > 35 |
| Pulsed Doppler S wave, cm/s | 13.35 ± 2.14 | 12.92 ± 1.90 | 11.48 ± 2.06 | 9.33 ± 1.81$*# | > 9.5 |
| RV 3D EF, % | 46.18 ± 2.28 | 45.80 ± 2.21 | 44.34 ± 2.14 | 31.19 ± 4.36$*# | ≥ 40 |
LVEF: left ventricular ejection fraction; RVAW: right ventricular anterior wall thickness; RVED: right ventricular end-diastolic diameter; TAPSE: tricuspid annulus peak systolic excursion; RV FAC: right ventricular fractional area curve; Pulsed Doppler S wave: peak systolic velocity of tricuspid annulus by pulsed-wave tissue Doppler imaging; RV 3D EF: three-dimensional echocardiographic right ventricular ejection fraction.
$
p < 0.05 vs. group A
*
p < 0.05 vs. group B
#
p < 0.05 vs. group C. Chinese guidelines provide different reference normal values as compared with international guidelines.