Normal right and left ventricular mass development during early infancy - 26/08/11
, Patricia I Dickson, MD a, Ning Qi, MD a, Julie E Noble, MD a, J.Usha Raj, MD a, Barry G Baylen, MD aAbstract |
The average newborn's right ventricular mass, indexed to body surface area, is approximately 20% above the adult level, consistent with in utero physiologic hypertrophy. In contrast, the left ventricular mass index is underdeveloped by about 30% at birth, resulting in a ratio of right to left ventricular mass that is nearly 75% higher than at maturity. Left ventricular mass index increases rapidly during the first 2 weeks of life and then more slowly thereafter, whereas the right ventricular mass index decreases steadily during the first 4 months of life.
Il testo completo di questo articolo è disponibile in PDF. | This study was supported by the Perinatal Clinical Research Center, Harbor–UCLA Research and Education Institute, Torrance, California, and grant M01 RR 00425 from the National Institutes of Health, Bethesda, Maryland. |
Vol 93 - N° 6
P. 797-801 - marzo 2004 Ritorno al numero
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