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Table 2 Baseline patient characteristics (Differences between groups by Whitney-Mann test, Dichotomized data were analyzed by the Chi2-Pearson-Test)

From: Implementation of seven echocardiographic parameters of myocardial asynchrony to improve the long-term response rate of cardiac resynchronization therapy (CRT)

  echo-guided CRT group controls p
n = 16 38  
% ischemic cardiomyopathy (ICMP) 37.5 (n = 5) 21.1 (n = 8) 0.49
Age [years] 67.1 (± 9.9) 63.6 (± 10.8) 0.79
male % 93.8 (n = 15) 68.4 (n = 26) 0.04
QRS width [mm] at baseline 166 (± 13) 165 (± 18) 0.48
Follow-up-interval [months] 6.7 (± 7.2) 9.4 (± 3.0) < 0.001
LVEF [%] 23.1 (± 6.7) 24.5 (± 7.4) 0.75
LV-EDV [ml] 259.1 (± 111.2) 262.0 (± 104.8) 0.98
LV-ESV [ml] 199.04 (± 89.4) 204.3 (± 90.8) 0.38
% responder according to reduction of LVESV/increase in EF 13/16 = 81.2% 18/38 = 47.4% 0.04