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Table 2 Clinical and Echocardiographic (conventional, 3D and TDI) changes from pre-implantation to four weeks after CRT implantation

From: Pre-implant right ventricular function might be an important predictor of the response to cardiac resynchronization therapy

Variable Pre- implantation Four weeks after CRT-implantation p-value
QRS, ms 155 ± 20 162 ± 29 n.s.
NT-proBNP, pg/ml 2925 ± 2611 3290 ± 3545 n.s.
Minnesota-score, median(range) 49 (11-90) 30 (1-69) 0.0004
NYHA-class, median(range) 3 (2-4) 2 (1-3) 0.0064
LV EDd, mm 67.6 ± 9.2 67.4 ± 8.9 n.s.
LV ESd, mm 59.2 ± 10.1 59.3 ± 9.9 n.s.
MR, 0-4, median(range) 1.5(0.5-2.5) 1.0(0.0-2.5) 0.063
LV EDV, ml 226 ± 71 211 ± 64 0.020
LV ESV, ml 169 ± 64 163 ± 59 n.s.
EF, % 24 ± 7 24 ± 8 n.s.
Ts septum-lateral, ms 60 ± 31 52 ± 44 n.s.
LV TT, mm 3.1 ± 1.2 3.9 ± 1.5 0.038
LV SMV, cm/s 2.2 ± 0.4 2.6 ± 0.9 0.045
RV TT, mm 8.8 ± 4.8 9.4 ± 3.7 n.s.
RV SMV, cm/s 6.2 ± 2.6 6.5 ± 2.6 n.s.
  1. Mean ± SD unless otherwise stated. MR = mitral regurgitation, Ts = dyssynchrony, SMV = systolic maximal velocity, LV EDd = left ventricular end diastolic diameter, LV ESd = left ventricular end systolic diameter, EF = ejection fraction. EDV = end diastolic volume, ESV = end systolic volume, TT = tissue tracking, RV = right ventricular.