Age-Specific Reference Intervals for Indexed Left Ventricular Mass in Children

For patients aged > 9 years, quantiles of LVM/height2.7 vary little, and values > 40 g/m2.7 in girls and > 45 g/m2.7 in boys can be considered abnormal (ie, > 95th percentile). However, for patients aged < 9 years, the index varies with age, and therefore, measured LVM/height2.7 must be compared with percentile curves, which are provided. This variation in LVM/height2.7 in younger children indicates that a better indexing method is needed for this age group. Nevertheless, these data are valuable in that they provide normal values with which patient data can be compared.