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Table 1 Hemodynamics, LV size, transmitral and transaortic Doppler, and IMP at baseline and with chronic LV dysfunction

From: Effect of changes in contractility on the index of myocardial performance in the dysfunctional left ventricle

  Baseline Chronic LVD
LV End Diastolic Volume (cc) 41 ± 5 54 ± 8***
LV End Systolic Volume (cc) 15 ± 4 31 ± 12***
Stroke Volume (cc) 26 ± 3 23 ± 9
LV Ejection fraction (%) 63 ± 9 42 ± 3***
LV Mass (g) 61 ± 10 85 ± 11***
LVSP (mm Hg) 109 ± 14 111 ± 12
LVEDP (mm Hg) 6.2 ± 2.3 11.8 ± 4.9**
Cardiac Output (l/min) 3.1 ± 0.7 2.8 ± 0.4
Peak +dP/dT (mm Hg/sec) 1874 ± 244 1388 ± 206***
Tau (msec) 24 ± 6 39 ± 5***
E/A 2.1 ± 1.3 1.5 ± 0.4*
Heart rate (beats/min) 78 ± 12 93 ± 18*
Deceleration Time (msec) 217 ± 38 129 ± 36**
ICT index (msec) 40 ± 22 58 ± 31*
IRT index (msec) 46 ± 19 63 ± 29
LV ejection time index (msec) 226 ± 23 201 ± 24*
IMP 0.38 ± 0.14 0.60 ± 0.19**
  1. Abbreviations: E/A = peak rapid filling velocity/peak atrial filling velocity; ICT = isovolumic contraction time; IRT = isovolumic relaxation time; IMP = Index of myocardial performance; LVSP = LV systolic pressure; LVD = LV dysfunction; LVEDP = LV end diastolic pressure.
  2. Statistics:*p < 0.05, **p < 0.01, ***p < 0.001 vs Baseline;