Splanchnic Circulation in Small for Date Newborns

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Abstract

Hypotrophic newborn is a newborn with birth weight below the 5th percentile weight of corresponding gestational age. Hypotrophic infants have higher morbidity and mortality in comparison with eutrophic neonates. A higher incidence of hypoglycemia, polycythemia, hyperbilirubinemia, thrombocytopenia, perinatal asphyxia and caesarean section occurs typically in hypotrophic newborns. Both, intrauterine hemodynamic dysbalance and centralization of circulation due to hypotrophy cause decreased blood flow to the splanchnic circulation after the birth. There was observed a lower increase in blood flow through the coeliac artery and superior mesenteric artery in comparison with eutrophic newborns during the first postnatal week. These facts are likely to be associated with a higher frequency of abdominal problems and necrotizing enterocolitis.

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Acta Medica Martiniana

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