Table 1

Normal M mode echocardiographic values for neonates with mean body weight between 2000 g and 4000 g

BW (kg) RVAWd (mm) RVDD (mm) IVSd (mm) IVSs (mm) LVEDD (mm) LVESD (mm) LVPWd (mm) LVPWs (mm) PAD (mm) AoD (mm) LAD (mm)
2.01.34.02.12.415.09.71.92.86.26.98.3
2.4 8.4 3.5 4.4 17.1 11.0 2.7 4.5 9.3 8.2 11.5
3.512.84.76.419.212.33.56.212.49.514.7
2.51.44.02.12.415.09.22.22.96.87.48.5
2.5 8.4 3.5 5.0 18.1 11.7 3.2 5.0 11.0 8.8 12.1
3.612.84.77.621.114.24.27.115.210.215.6
3.01.44.12.32.515.19.22.43.17.07.59.4
2.5 8.5 3.6 5.1 18.2 11.7 3.5 5.1 11.0 9.1 12.6
3.612.94.97.721.314.24.67.115.010.715.8
3.51.54.12.32.515.49.52.53.38.07.510.2
2.6 8.6 3.7 5.3 18.8 11.9 3.6 5.4 11.2 9.3 13.2
3.713.15.18.122.214.34.77.514.411.116.2
4.01.54.12.42.616.510.22.63.59.37.610.5
2.6 8.6 3.8 5.4 19.9 12.7 3.7 5.7 12.5 9.6 13.7
3.713.15.28.223.315.24.87.915.711.616.9
  • The mean value is bold; the value above is mean − 2 SD, the value below is mean + 2 SD.

  • AoD, aortic diameter; BW, body weight; IVSd, thickness of interventricular septum at end diastole; IVSs, thickness of interventricular septum at end systole; LAD, left atrial dimension; LVEDD, left ventricular end diastolic dimension; LVESD, left ventricular end systolic dimension; LVPWd, left ventricular posterior wall thickness at end diastole; LVPWs, left ventricular posterior wall thickness at end systole; PAD, pulmonary artery diameter; RVAWd, right ventricular anterior wall thickness at end diastole; RVDD, right ventricular end diastolic dimension.