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Table 2 Compare STE parameters in Baseline and 6-month follow up

From: Speckle tracking echocardiography analyses of myocardial contraction efficiency predict response for cardiac resynchronization therapy

  Control Group Non-responder Group Responder Group
(n = 30) Baseline (n = 32) 6-month (n = 27) Baseline (n = 38) 6-month (n = 38)
ECT(%) 29.26±0.50*,# 22.26±0.82 23.31 ± 6.09 20.86±1.03** 24.62±0.70
TCT(%) 37.26±0.6*,# 36.83±1.46## 41.93±1.54 43.95±3.58 43.21 ± 5.64
ECTR(%) 79.51±0.69*,# 60.00±2.16 59.1 ± 11.88 50.30±1.64** 60.94±1.57
EC(%) 17.09±0.59*,# 5.35±0.41 7.82 ± 3.91 5.44±0.31** 9.71±0.53
MLS(%) 18.67±0.58*,# 8.11±0.39 11.33 ± 3.92 9.28±0.36** 13.13±0.52
ECR(%) 91.60±0.72*,# 62.90±2.53 59.1 ± 11.88 53.69±1.69** 72.16±1.86
  1. EC effective contraction, ECT effective contractile time, ECR the ratio of effective contraction, ECTR the ratio of effective contractile time, MLS maximum longitudinal strain, TTO time to onset strain, TTP time to peak strain, 6 month 6 month follow-up
  2. Compare Non-responder Group versus Control Group at baseline,* P < 0.05;
  3. Compare Responder Group versus Control Group at baseline, # P < 0.05;Compare Baseline versus 6 month follow up in Non-responder group, ## P < 0.05;
  4. Compare Baseline versus 6 month follow up in Responder group, ** P < 0.05;