Infant outcomes and maternal COVID-19 status at delivery.

OBJECTIVES: To compare clinical characteristics and outcomes of infants born to COVID-19 to non COVID-19 mothers at delivery in a community hospital in Queens, New York. METHODS: Case-control study conducted March 15 to June 15, 2020. Cases were infants born to mothers with laboratory-confirmed COVID-19 infection at delivery. The infant of non COVID-19 mother born before and after each case were selected as controls. RESULTS: Of 695 deliveries, 62 (8.9%) infants were born to COVID-19 mothers; 124 controls were selected. Among cases, 18.3% were preterm compared to 8.1% in controls (p=0.04). In preterm cases, birth weight was not significantly different between groups. However, there was a significantly higher proportion of neonatal intensive care unit (NICU) admissions, need for respiratory support, suspected sepsis, hyperbilirubinemia, feeding intolerance and longer length of stay (LOS) in preterm cases. Among term cases, birth weight and adverse outcomes were not significantly different between cases and controls except for more feeding intolerance in cases. All infants born to COVID-19 mothers were COVID-19 negative at 24 and 48 h of life. No infants expired during birth hospitalization. CONCLUSIONS: Significantly, more infants of COVID-19 mothers were premature compared to controls. Preterm cases were more likely to have adverse outcomes despite having similar birth weight and gestational age. These differences were not seen among full term infants. Health care providers should anticipate the need for NICU care when a COVID-19 mother presents in labor.

Study progress of bronchopulmonary dysplasia / 中华实用儿科临床杂志

Bronchopulmonary dysplasia (BPD) is a disease of very low birth weight and extremely low birth weight infants with multifactorial etiology including premature birth,ventilator induced injury,oxygen stress and inflammation.Most of the medical therapies and strategies are supportive.Steroid is the most effective medical therapy but because of its long-term adverse effect,the use of steroid should not be given routinely but should be decided based on individual consideration,in conjunction with the family.For the prevention and treatment of BPD,future research should be focus on mesenchymal stem cell implantation and local steroid administration using surfactant as vehicle.

Adrenocorticotropic hormone and cortisol levels in term infants born with meconium-stained amniotic fluid.

OBJECTIVE: To evaluate cord blood concentrations of adrenocorticotropic hormone (ACTH) and cortisol in well term infants born with and without meconium-stained amniotic fluid (MSAF) and term infants born with MSAF who experienced respiratory distress (RD). STUDY DESIGN: This was a prospective observational study. Fifty-four term infants were enrolled in the study in three groups: group 1 consisted of 18 well infants who were born with clear amniotic fluid, group 2 had 18 well infants born with MSAF, and group 3 had 18 infants born with MSAF who experienced RD in the first 24 h of age. Cord blood ACTH and cortisol concentrations were measured in infants born in all three groups. Groups 2 and 3 had serum ACTH and cortisol levels re-measured at 22-26 h of age. RESULT: The mean ACTH and cortisol levels at birth in group 3 infants were 18.3 pg/mL and 12.6 mg/dL, respectively. These were significantly lower than those in group 2 infants. CONCLUSION: Term infants born with MSAF and who experienced respiratory distress had significantly lower levels of ACTH and cortisol at birth compared with well term infants born with MSAF or clear amniotic fluid. This study suggests that inadequate response of ACTH and cortisol hormones may play a role in the development of respiratory distress in term infants with MSAF.

Postnatal corticosteroids for prevention and treatment of chronic lung disease in the preterm newborn.

Despite significant progress in the treatment of preterm neonates, bronchopulmonary dysplasia (BPD) continues to be a major cause of neonatal morbidity. Affected infants suffered from long-term pulmonary and nonpulmonary sequel. The pulmonary sequels include reactive airway disease and asthma during childhood and adolescence. Nonpulmonary sequels include poor coordination and muscle tone, difficulty in walking, vision and hearing problems, delayed cognitive development, and poor academic achievement. As inflammation seems to be a primary mediator of injury in pathogenesis of BPD, role of steroids as antiinflammatory agent has been extensively studied and proven to be efficacious in management. However, evidence is insufficient to make a recommendation regarding other glucocorticoid doses and preparations. Numerous studies have been performed to investigate the effects of steroid. The purpose of this paper is to evaluate these studies in order to elucidate the beneficial and harmful effects of steroid on the prevention and treatment of BPD.