Table 2

Echocardiographic findings of studies including tissue Doppler imaging

Author, yearGroupParticipants (n)F/M (n)Age (years)LV diastolic dys­function (%)†e′(cm/s)†E/ e′ ratio†LV systolic dys­function (%)†LV EF
(%)†		Long-axis strain (%)†
Diederichsen 201521IIM††
Controls		14
14		8/6
8/6		59.5
61.0		7
0		10.5
10.9		7.8
6.8		15
0		69
65		NA
Diederichsen 201518PM/DM
Controls		76
48		49/27
32/16		60.0
59.4		63*
27		10.0*
11.0		8* ∼
7 ∼		8
2		65
65		NA
Lu, 201315PM/DM‡
Controls		46
21		31/15
11/10		31.1
35.0		48
NA		10.5*
12.7		8.3*
6.8		NA64.2
64.7		NA
Schwartz 2011+201416 17JDM
Controls		59
59		36/23
36/23		21.5∼
21.6∼		22*
0		11.3*
12.4		8.0*
7.1		Yes§63.2
62.5		16.6*
17.7
Wang 201357PM‡
Controls		71
71		56/15
56/15		46.9
46.2		59.2
NA		7.5*
 9.1		10.4*
8.7		0
0		67.7
67.1		NA
Wang, 201414DM‡
Controls		51
51		43/8
43/8		44.1
44.4		76.5*
52.9		7.8*
 9.3		9.9*
8.7		0
0		66.5
68.2		NA

  • Values are mean unless marked with ∼=median.

  • *p<0.05.

  • †Values are mean unless marked with ∼=median.

  • ‡Patients without hypertension, diabetes and cardiovascular heart disease.

  • ###Newly diagnosed untreated patients without hypertension, diabetes and cardiovascular heart disease.

  • §Frequency of systolic dysfunction not presented.

  • ††Newly diagnosed untreated patients.

  • DM, dermatomyositis; e′, early diastolic tissue velocity; E, early diastolic transmitral flow; NA, not available; EF, ejection fraction; F/M, female/male; IIM, idiopathic inflammatory myopathy; JDM, juvenile dermatomyositis; LV, left ventricular; PM, polymyositis.