Neilan et al., Eur J Echocardiogr 2009

Allometric scaling model developed by investigators at Mass. General Hospital on over 4,000 patients.(!)

Conventional linear correction for body size is inaccurate in children and paradoxically increases the relationship of the indexed parameter with WT and BSA. Conversely, correction using the optimal AE removes the effect of that variable

Patient Demographics

Weight (kg):

Measurements

Site

Z-Score

Range

Left Atrial Diameter (mm):

Z-Score:

Range:

Note: the study population had the following characteristics:

age range: (1 - 17)
weight range: (8.2 - 91.4)

Data entered for patients outside of these limits should be used with caution.

Derivation of a size-independent variable for scaling of cardiac dimensions in a normal paediatric population.

Neilan TG, Pradhan AD, King ME, Weyman AE.

Eur J Echocardiogr. 2009 Jan;10(1):50-5.