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Table 3 Contractile reserve to SE (CR+) and responders to CRT (CRT+) 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

  CR+ CRT+ CR+ CRT- CR- CRT+ CR- CRT- CR+ CRT+
Da Costa A [8] 28 (42%) 6 (9%) 19 (28%) 14 (21%) 34 (51%) 47 (70%)
Rocchi G [9] 41 (64%) 5 (8%) 2 (3%) 16 (25%) 46 (72%) 43 (67%)
Ciampi Q [10] 29 (49%) 13 (22%) 5 (8%) 12 (20%) 42 (71%) 34 (59%)
Lancellotti P [11] 27 (53%) 4 (8%) 3 (6%) 17 (33%) 31 (61%) 30 (59%)
Senechal M [12] 30 (61%) 1 (2%) 1 (2%) 17 (35%) 31 (63%) 31 (63%)
Chaundry FA [13] 29 (54%) 13 (24%) 2 (4%) 10 (19%) 42 (78%) 31 (58%)
Altman RK [14] 13 (42%) 7 (23%) 3 (10%) 8 (26%) 20 (65%) 16 (52%)
Gasparini M [15] 144 (71%) 22(11%) 16 (8%) 22 (11%) 166 (81%) 160 (79%)
Pugliese M [16] 37 (36%) 14 (14%) 23 (23%) 28 (27%) 51 (50%) 60 (59%)
Mizia-Stec K [17] 62 (48%) 5 (4%) 42 (33%) 20 (16%) 67 (52%) 104 (81%)
Murin P [18] 22 (43%) 3 (6%) 6 (12%) 20 (39%) 25 (49%) 28 (55%)
Total value (%) 462 (52%) 93 (11%) 122 (14%) 184 (21%) 555 (63%) 584 (66%)