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PubMed · 11669033

Necrotizing enterocolitis.

Abstract

Improvement in survival rates of low birth-weight infants particularly in the neonatal intensive care units of India appears to be accompanied by frequent recognition of Necrotizing enterocolitis (NEC) among early survivors. As the philosophy and practice of advanced care for tiny infants becomes more acceptable and affordable in the country, a steady increase in survival of such infants is predictable. However there is growing concern in India that NEC could become a significant contributor to morbidity and mortality in the future. NEC is currently regarded as the most common acquired gastrointestinal emergency in the newborn period, and the outcome of this disease is universally poor. Improved understanding of the pathophysiology and pathogenesis of this condition is required for formulating optimal principles of prevention and management.

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BibTeXRIS

A Kulkarni, R Vigneswaran. 2001. Necrotizing enterocolitis.. https://doi.org/10.1007/bf02762112

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Echogenic bowel in intrauterine growth restriction fetuses: does this jeopardize the gut?

OBJECTIVE: To investigate the association between intrauterine growth restriction (IUGR) fetuses with echogenic bowel and high resistance in the umbilical artery and increased risk of developing neonatal necrotizing enterocolitis. METHODS: We analyzed two groups: group 1, singleton IUGR fetuses with echogenic bowel or reversed diastolic flow in the umbilical artery, and group 2, neonates who were diagnosed as having neonatal necrotizing enterocolitis. In group 1, the pulsatility index of the superior mesenteric artery and celiac trunk were determined. In group 2, a retrospective analysis was carried out from the medical records of the neonates. RESULTS: Fifteen fetuses with echogenic bowel and severe IUGR were evaluated by Doppler studies, and 21 neonates with neonatal necrotizing enterocolitis were reviewed. In group 1, none of the IUGR fetuses developed neonatal necrotizing enterocolitis, whereas in group 2, only one neonate was defined as IUGR. The mean gestational age at delivery did not differ statistically between the two groups (28.8 +/- 2.3 weeks versus 30.1 +/- 3.3 weeks), whereas the mean birth weight was significantly lower in the first group (700 +/- 200 g versus 1431 +/- 466 g in the second group, P <.001). The mean pulsatility index +/- standard deviation in the superior mesenteric artery and celiac trunk of the IUGR fetuses were 1.5 +/- 0.14 and 1.2 +/- 0.17, respectively, both being found significantly lower than those of normal, appropriate controls (1.9 +/- 0.15 and 1.7 +/- 0.1, respectively, P <.005). CONCLUSION: Fetal echogenic bowel in IUGR fetuses is not associated with development of neonatal necrotizing enterocolitis. In these fetuses, vasodilatation in the superior mesenteric artery and celiac trunk have been demonstrated.

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Interleukin-11 levels in healthy and thrombocytopenic neonates.

Thrombocytopenia is common in sick neonates, and affected neonates have adverse outcomes compared with those without thrombocytopenia. As impaired platelet production underlies many neonatal thrombocytopenias, affected neonates are potential candidates for hemopoietic growth factor therapy. Although recombinant human (rh) thrombopoietin remains under therapeutic development, rhIL-11, which stimulates megakaryocytopoiesis and increases platelet counts after chemotherapy, is already licensed for clinical use. However, nothing is known about IL-11 in neonates. We therefore measured plasma IL-11 by ELISA in healthy term neonates, stable preterm neonates with or without thrombocytopenia, and preterm neonates with sepsis or necrotizing enterocolitis (NEC) with or without thrombocytopenia. At birth IL-11 was undetectable (<10 pg/mL) in healthy term neonates (n = 20) and 27 of 31 (87%) stable preterm neonates. Three stable preterm neonates with detectable IL-11 (mean+/-SD, 11.3 +/- 0.4 pg/mL; median, 11.6 pg/mL) suffered chorioamnionitis, the remaining neonate (IL-11, 14 pg/mL) being one of nine with early onset thrombocytopenia (present by <72 h of age). IL-11 was also measured in 58 preterm neonates with suspected sepsis or NEC. In 25 of 58, sepsis or NEC was unconfirmed and IL-11 was undetectable. By contrast, 14 of 33 with proven sepsis or NEC had elevated IL-11 (median, 14.9 pg/mL; range, 11.2-92.2 pg/mL). Of these 33 neonates, 19 developed thrombocytopenia: nine of 19 (47%) had detectable IL-11 and 10 of 19 (53%) did not (p > 0.05). Although its role in platelet production in neonates remains unclear, these data suggest that IL-11 is involved in the endogenous cytokine response to sepsis or NEC in preterm neonates. Further studies of IL-11 in neonates are warranted to assess its role both in platelet production and in mediation of the endogenous inflammatory response.

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[Surgical treatment of children with necrotizing enterocolitis].

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