BACKGROUND: In severe intrauterine growth restriction (IUGR) due to placental insufficiency a haemodynamic adaptation occurs, resulting in preferential blood flow to the fetal brain (brain sparing). With Doppler ultrasound an increased ratio between the umbilical and the cerebral artery pulsatility index (U/C ratio) can be demonstrated. IUGR is associated with impaired neurodevelopmental outcome. OBJECTIVE: Evaluation of the effect of fetal brain sparing on behavioural problems at eleven years in premature born children. METHODS: Prospective cohort study in premature children born in 1989, with a gestational age of 26 0/7 to 33 0/7 weeks. An U/C ratio>0.72 was defined as brain sparing. Behavioural problems were assessed with the parent-reported Child Behaviour Check List (CBCL) and the Teacher's Report Form (TRF). T scores >60 for total problem score and subscales of internalizing and externalizing behaviour, were considered abnormal. RESULTS: Ninety-eight of the 116 survivors were assessed, of which 31 with antenatally established fetal brain sparing. According to the CBCL-total problem score 23.3% of the premature born babies in the brain sparing group had behavioural problems compared with 22.8% of those without brain sparing. According to the TRF-total problem score the percentages were 21.4% and 20.0%, respectively. Logistic regression analysis failed to show a significant association of U/C ratio with behavioural problems. In this model oxygen dependency at 28 days, IQ<85 at five years, cranial ultrasound abnormalities, fetal growth ratio<0.80, Apgar scores<7 after 5 min and birth weight<p10 contributed significantly. CONCLUSION: In this cohort brain sparing itself has no significant association with behavioural problems at eleven years. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.
BACKGROUND: In severe intrauterine growth restriction (IUGR) due to placental insufficiency a haemodynamic adaptation occurs, resulting in preferential blood flow to the fetal brain (brain sparing). With Doppler ultrasound an increased ratio between the umbilical and the cerebral artery pulsatility index (U/C ratio) can be demonstrated. IUGR is associated with impaired neurodevelopmental outcome. OBJECTIVE: Evaluation of the effect of fetal brain sparing on behavioural problems at eleven years in premature born children. METHODS: Prospective cohort study in premature children born in 1989, with a gestational age of 26 0/7 to 33 0/7 weeks. An U/C ratio>0.72 was defined as brain sparing. Behavioural problems were assessed with the parent-reported Child Behaviour Check List (CBCL) and the Teacher's Report Form (TRF). T scores >60 for total problem score and subscales of internalizing and externalizing behaviour, were considered abnormal. RESULTS: Ninety-eight of the 116 survivors were assessed, of which 31 with antenatally established fetal brain sparing. According to the CBCL-total problem score 23.3% of the premature born babies in the brain sparing group had behavioural problems compared with 22.8% of those without brain sparing. According to the TRF-total problem score the percentages were 21.4% and 20.0%, respectively. Logistic regression analysis failed to show a significant association of U/C ratio with behavioural problems. In this model oxygen dependency at 28 days, IQ<85 at five years, cranial ultrasound abnormalities, fetal growth ratio<0.80, Apgar scores<7 after 5 min and birth weight<p10 contributed significantly. CONCLUSION: In this cohort brain sparing itself has no significant association with behavioural problems at eleven years. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.
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