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1245 Longitudinal Follow Up in a Cohort of ELBW/VLBW Infants in the Context of the Bayley-Iii Standardization in Greece
  1. V Soubasi1,
  2. K Velikos2,
  3. I Michalettou2,
  4. V Papadopoulou2,
  5. D Zafeiriou3,
  6. P Papakyriakidou1,
  7. V Drossou1
  1. 11st Neonatal Clinic, Ippokration General Hospital, Aristotle University of Thessaloniki
  2. 2Dept of Child Psychiatry, Ippokration General Hospital
  3. 31st Dept of Paediatrics, Ippokration General Hospital, Aristotle University of Thessaloniki, Thessaloníki, Greece

Abstract

Background It is not clear whether the Bayley III is overestimating cognitive performance or it is a more valid assessment of emerging cognitive skills than the older edition II(Vohr B 2012).

Aim To compare the developmental profile in a cohort of premature infants in two different time points in order to assess the stability of the results, in the context of the Bayley-III standardization in Greece.

Methods Bayley-III scales(cognitive, language, motor, social-emotional, and adaptive behavior), were administered in 103 preterm infants (≤32 weeks) at a mean age of 12mo and 24mo. Infants were divided in 2 groups based to their GA: A(n=48, 24–28wks), B(n=55, 29–32wks). All developmental assessments(206) were applied by one researcher.

Results Mean(SD) Bayley-III composite scores (CSs) percentile ranks, and overall neurodevelopmental impairment (NDI 24mo) (%) for the 2 groups are shown in the table; there were no differences in CSs in any Bayley III domain in and between groups. Although not significant, ELBW showed a decrease and VLBW an increase in CSs over time. The only difference between groups was in the motor domain regarding percentile ranks and overall NDI rates(table). A significant correlation was found between: 12th mo neuroexam with all the Bayleys subscales (p<0.001).

Conclusion In our cohort Bayleys III composite scores seems to be stable in serial examinations; however are lower to those reported. ELBW infants at 24mo showed a delay in the motor domain. Comparison with a control group is deemed necessary.

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