Hearts of newborns, children and adults of autopsied cases without cardiac diseases were studied quantitatively. In prenatal term, the growth rate of ventricular weight is higher than that of body weight, but after birth vice versa. Abrupt change from fetal to adult circulation has a prolonged effect on the morphological growth of the heart at least 1 to 2 years after birth. Newborns who died of pulmonary diseases have more hyperplastic right ventricle or more hypoplastic left one than those who died of non‐cardiopulmonary diseases. Widely patent ductus arteriosus is more frequently observed in the former than in the latter. Proportion of both ventricular masses was studied in relation to the width of ductus arteriosus and preponderance of the left ventricular mass was suggested to be a requirement for closure of ductus arteriosus
No takes yet. Share an insight, caveat, or question.
Katsuiku Hieokawa (1972) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: