Evaluation of factors for poor outcome in preterm newborns with posthemorrhagic hydrocephalus associated with late-onset neonatal sepsis

What factors interfere with the performance of preschool children in the language subtest of Bayley-III?

PURPOSE

to verify if the performance of pre-school children born prematurely and at term in the Bayley-III language subtest differs and to identify whether variables gestational age, birth weight, socioeconomic level, and maternal education are determinant in the outcome of language development.

METHODS

Descriptive cross-sectional case-control study in which 36 pre-school children born prematurely and 27 born at term were evaluated concerning language development by the Bayley III subtest. Preschoolers between 18 and 36 months of chronological age were considered; with no syndromes or genetic, sensory, neurological, auditory, or visual impairments; and had not previously undergone speech therapy. Mann-Whitney, Fisher's Exact, and binary logistic regression tests were used for statistical analysis.

RESULTS

the groups' performance did not differ either by the composite score (p = .701) or by the classification based on the percentile (p = .225). Gestational age, birth weight, and socioeconomic status did not influence the outcome of language development. However, maternal education was significant (p = .014) in the binary logistic regression model, suggesting that the mother having studied until basic education increases the chance of having a child underperforming in the Bayley III language subtest 6.31 times.

CONCLUSION

there was no difference between the groups in the Bayley-III language subtest and only maternal education influenced the outcome of language development.

Mannose-Binding Lectin Levels in Late-Onset Sepsis in Preterm Infants: Results from a Prospective Study in a Tertiary Care Center

Introduction: This study aimed to determine the association between serum mannose-binding lectin (MBL) levels, gene polymorphisms and late-onset sepsis (LOS) in preterm infants. Methods: Infants with <37 gestational weeks were categorized into two groups according to the presence of LOS during their hospitalization. An MBL level <700 ng/ml was defined as deficiency, <400 ng/ml as severe deficiency. Codon 54 and 57 polymorphisms of MBL2 gene were analyzed. Results: Overall, 153 preterm infants were included. MBL deficiency was found to be more common in the LOS group (p = 0.02). The rate of Gram-negative sepsis was higher in MBL2 variant-type (p = 0.01). In the logistic regression analysis, MBL levels <700 ng/ml were found to have a significant effect on LOS development (odds ratio: 2.692, 95% confidence interval 1.196-5.8, p = 0.02). Conclusions: MBL deficiency is an important risk factor for the development of LOS. Furthermore, there is an association between MBL2 gene polymorphism and Gram-negative sepsis.

Red cell distribution width as a predictor of late-onset Gram-negative sepsis

BACKGROUND

Late-onset sepsis (LOS) remains an important cause of morbidity and mortality in preterm infants. In this study, our aim was to investigate the red-cell distribution width (RDW) levels during a LOS episode, and its association with the type of growing microorganism and mortality.

METHODS

Preterm infants with culture-proven sepsis during their neonatal intensive care unit stay were enrolled. Red-cell distribution width levels were obtained in the first 4 h of postnatal life and at the onset of the LOS episode, and compared for these time frames. The study cohort was divided into two groups according to the type of the growing microorganism. The RDW levels were then assessed in intra- and inter-group analyses.

RESULTS

Eighty-six infants were included in the final analysis. RDW levels were increased in the study cohort after a LOS attack (P < 0.001). Infants with Gram-negative sepsis showed a significant increase in their RDW levels, but they remained unchanged in infants with Gram-positive sepsis (P < 0.001 and P = 0.4, respectively). An RDW cut-off of >19.50% was related with a sensitivity of 87% and a specificity of 81% for predicting late-onset Gram-negative sepsis (P < 0.001). Logistic regression analysis showed a positive association of RDW with mortality when adjusted for covariants (adjusted odds ratio: 1.40; 95% confidence interval: 1.02-1.80; P = 0.03).

CONCLUSIONS

Our findings show that RDW levels increased during a LOS episode in preterm infants, which was especially evident in Gram-negative infections. We believe that these findings may be of importance in the early diagnosis and prognosis of LOS in preterm infants.