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Table 2 Rest and stress echocardiographic characteristics of the studies included in the analysis

From: Left ventricular contractile reserve by stress echocardiography as a predictor of response to cardiac resynchronization therapy in heart failure: a systematic review and meta-analysis

  LVEDV at rest (ml) LVESV at rest (ml) LVEF at rest (%) Type stressors Dose (mcg) LV Contractile reserve criteria
Da Costa A [8] 249 ± 92 187 ± 75 26 ± 5 dobutamine 10 EF increase >1.25-fold
Rocchi G [9] 183 ± 54 139 ± 45 24 ± 5 exercise - WMSI decrease >0.25
Ciampi Q [10] 176 ± 64 129 ± 52 27 ± 6 dobutamine 40 WMSI decrease >0.20
Lancellotti P [11] 184 ± 39 134 ± 32 27 ± 5 exercise - EF increase >6.5%
Senechal M [12] 216 ± 65 180 ± 62 19 ± 7 dobutamine 20 WMSI decrease >0.25
Chaundry FA [13] 108 ± 32 87 ± 23 18 ± 7 dobutamine 20 WMSI decrease >0.31
Altman RK [14] - 116 ± 40 28 ± 6 dobutamine 10 EF increase >20%
Gasparini M [15] 215 ± 79 159 ± 65 27 ± 6 dobutamine 20 EF increase >5 points
Pugliese M [16] - - 27 ± 4 dobutamine 20 WMSI decrease >0.20
Mizia-Stec K [17] - - 24 ± 6 dobutamine 20 WMSI decrease >0.20
Murin P [18] 227 ± 66 168 ± 55 26 ± 7 dobutamine 40 EF increase >7%
Mean Value 195 ± 61 144 ± 49 25 ± 6   22