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Left ventricular mass data were obtained from biplane cineangiocardiograms in 37 normal infants and children. Left ventricular mass calculated by using thickness of anterior wall (left ventricular mass-anterior) and posterior wall (left ventricular mass-posterior) of the free left ventricular wall were studied in relation to body surface area and left ventricular end-diastolic volume. Both of left ventricular mass-anterior and mass-posterior were expressed as a function of body surface area with exponential relationship; left ventricular mass-anterior = 68.5 (body surface area) g (r = 0.98, p less than 0.01), left ventricular mass-posterior = 84.6 (body surface area) g (r = 0.97, p less than 0.01). Left ventricular mass-anterior/left ventricular end-diastolic volume averaged 0.73 +/- 0.01 g/ml, and left ventricular mass-posterior/left ventricular end-diastolic volume 0.89 +/- 0.02 g/ml, respectively. Thus, left ventricular mass can be predicted from body surface area by using the exponential equations. In addition, normal values for left ventricular mass-posterior must be discriminated from those for left ventricular mass-anterior.

Angiocardiographic estimation of left ventricular mass in normal infants and children.