Since the mid-1990s several studies have reported poor school performance in extremely preterm infants. The necessity to provide a full picture of the child's situation has been indicated. In a southern Swedish population 32,120 infants were born during the 2-y period 1985-1986. In total, 121 infants (0.4%) were reported liveborn before the 29th gestational wk and 12 (0.04%) were reported stillborn. Only 65 infants (50%) survived to the age of 10 y. The aim of this study was to evaluate the situation of extremely preterm (EPT) children at school, compared with that of full-term (FT) control children, at the age of 10 y. Health, cognitive development, school achievement and behaviour were measured. Ninety-two percent of the preterm children had no major neurological disability and most were in good health. The EPT children had an IQ of 90 +/- 15 vs 106 +/- 15 (mean +/- SD) for the FT children (p <0.001), and on the test of Visual-Motor Integration, the EPT children had 93.3 +/- 12.2 vs 109.6 +/- 14.2 for FT peers (p < 0.001). On both tests the differences between the groups corresponded to approximately one standard deviation. Thirty-eight percent of the EPT children performed below grade level at school. Thirty-two percent had general behavioural problems and 20% had attention deficit hyperactivity disorder, compared with 10% and 8%, respectively, in the FT group. EPT children require interventions to support their development and reduce behavioural problems.
Stjernqvist K, Svenningsen NW. Ten-year follow-up of children born before 29 gestational weeks: health, cognitive development, behaviour and school achievement. Acta Paediatr 1999; 88: 557-62. Stockholm. ISSN 0803-5253 Since the mid-1990s several studies have reported poor school performance in extremely preterm infants. The necessity to provide a full picture of the child's situation has been indicated. In a southern Swedish population 32 120 infants were born during the 2-y period 1985-1986. In total, 121 infants (0.4%) were reported liveborn before the 29th gestational wk and 12 (0.04%) were reported stillborn. Only 65 infants (50%) survived to the age of 10 y. The aim of this study was to evaluate the situation of extremely preterm (EPT) children at school, compared with that of fullterm (FT) control children, at the age of 10 y. Health, cognitive development, school achievement and behaviour were measured. Ninety-two percent of the preterm children had no major neurological disability and most were in good health. The EPT children had an IQ of 90 AE 15 vs 106 AE 15 (mean AE SD) for the FT children (p`0.001), and on the test of Visual-Motor Integration, the EPT children had 93.3 AE 12.2 vs 109.6 AE 14.2 for FT peers (p`0.001). On both tests the differences between the groups corresponded to approximately one standard deviation. Thirty-eight percent of the EPT children performed below grade level at school. Thirty-two percent had general behavioural problems and 20% had attention deficit hyperactivity disorder, compared with 10% and 8%, respectively, in the FT group. EPT children require interventions to support their development and reduce behavioural problems. & Behaviour, development, extremely preterm, follow-up, health, school achievement
In order to evaluate the usefulness of early continuous EEG-monitoring in very preterm neonates, recordings with a Cerebral Function Monitor (CFM) were made prospectively in 31 ESLBW infants with birthweights below 901 grams, during their first week of life. The CFM background activity was, as expected from EEG studies, dominated by a suppression-burst pattern in 94% of the infants. Some infants had periods with more continuous EEG activity or suppression-burst changing into continuous. Patterns similar to sleep-wake cycling (SWC) were identified in infants with gestational ages as low as 24 weeks. The level of the CFM-background activity was mainly influenced by the presence and severity of intracranial hemorrhage (ICH), but also by medications such as phenobarbital. Epileptiform activity (EPA) was only found in infants with ICH, and was identified in 75% of these infants. Of the infants with EPA, 87% had periods with subclinical EPA, although 47% had both clinical and subclinical seizures. The presence of more continuous activity and SWC were indicators of a favourable outcome, whereas electrocerebral inactivity predicted an unfavorable outcome. The prognostic estimates of mortality and neurologic outcome were similar for early CFM recording (positive predictive value 69-100%) and cranial ultrasound scan (positive predictive value 71-100%). The monitoring of cerebral electrical activity also provided immediate and clinically useful information during the intensive care of these ESLBW infants. Further studies on the causal relation between EPA and the development of ICH should be performed before definite conclusions can be drawn concerning any preventive effect from anticonvulsive treatment of clinical/subclinical seizures.
In a long-term, prospective, control study, 20 extremely low-birth-weight (ELBW) infants with birth weights between 500 and 900 g (mean 755 (SD 109) g) and gestational ages between 24 and 30 weeks (mean 26.2 (SD 1.8) weeks) were compared with 20 full-term infants at 4 years of age for growth, health, development and quality of life. Four of 20 (20%) ELBW children had major neurological disorders, which were all identified at the 1-year assessment. Seventeen (85%) ELBW children had cognitive development, assessed with the Griffiths mental development scale, within the normal range for age but lower than for full-term controls. The greatest deviations between ELBW and full-term children were found in locomotor and visual-motor integration functions. Eight ELBW children in all (40%), four with recurrent respiratory tract infections after neonatal mechanical ventilation and the four children with major neurological disorders had a higher rate of visits to physicians and hospital admissions. The behavioural symptom interview showed an increased rate of hyperactivity and difficulties in concentrating but not of general behavioural deviations in the ELBW group. Only by school age can all aspects of an extremely early birth be evaluated, but at 4 years of age, 85% of the ELBW children in our group had a good quality of life according to Scheffzek's categorizations.
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