Table 2.

Echocardiographic and Doppler variables in patients with dermatomyositis and controls. Data are mean ± SD unless otherwise indicated.

VariablePatients, n = 51Controls, n = 51p
Left ventricular (LV) diameter, mm44.57 ± 4.3645.24 ± 3.22NS
Left atrium diameter, mm30.39 ± 3.7229.51 ± 2.80NS
Interventricular septum thickness, mm (range)9 (8, 10)9 (8, 10)NS
Posterior wall thickness, mm (range)9 (8, 10)9 (8, 9)NS
Aortic root diameter, mm (range)28 (26, 29)27 (26, 28)NS
Ascending aorta diameter, mm (range)28 (27, 31)27 (26, 28)NS
Main pulmonary artery diameter, mm (range)20 (19, 22)18 (17, 20)NS
LV end-diastolic dimension, mm (range)45 (43, 47)45 (43, 48)NS
LV end-systolic dimension, mm (range)28 (26, 30)28 (27, 30)NS
LV end-diastolic volume, ml (range)92 (83, 104)93 (83, 106)NS
LV end-systolic volume, ml30 (25, 34)30 (26, 35)NS
Peak of early diastolic flow velocity (E), m/s0.72 ± 0.190.79 ± 0.16NS
Peak of late diastolic flow velocity (A), m/s0.77 ± 0.180.67 ± 0.13< 0.05
E/A ratio0.97 ± 0.331.20 ± 0.28< 0.001
Mitral annular early diastolic velocity (Em), cm/s7.78 ± 2.909.32 ± 2.10< 0.05
Mitral annular late diastolic velocity (Am), cm/s (range)8 (7, 9)7.3 (6.8, 9.2)NS
Em/Am ratio (range)0.89 (0.64, 1.22)1.18 (1.04, 1.29)< 0.01
E/Em ratio9.92 ± 2.828.67 ± 1.92< 0.05
Deceleration time of flow velocity in early diastole (DT), ms231.75 ± 40.60208.20 ± 26.30< 0.01
Isovolumic relaxation time, ms81.06 ± 19.3177.41 ± 11.32NS
LV stroke volume, ml61.16 ± 12.2165.35 ± 10.830.069
LV ejection fraction, %66.45 ± 6.8168.20 ± 4.110.120
LV fractional shortening, % (range)38 (34, 40)38 (36, 41)0.284
  • NS: not significant (p > 0.05).