Abstract:
:Intrauterine growth restriction (IUGR) is a recognized risk factor for neurologic deficits later in life. Abnormal fetal blood flow in the presence of fetal growth retardation helps to distinguish true fetal growth impairment from small but normally grown infants. The present study aimed to investigate the influence of IUGR with abnormal fetal blood flow on retinal optic nerve morphology at 18 y of age. A prospective study was performed in 19 subjects with IUGR [abnormal fetal aortic blood flow velocity; median birth weight deviation of -31% (-22 to -42%; median (range)] and in 23 subjects with a normal birth weight for gestational age [normal fetal aortic blood flow velocity; median birth weight deviation of -2% (-10 to 22%)]. All subjects were previously examined concerning minor neurologic dysfunction (MND) at 7 y of age. The ocular fundus was examined by ophthalmoscopy, and the optic nerve morphology was evaluated by digital image analysis. Decrease in neuroretinal rim area at 18 y of age was associated with increasing negative birth weight deviation (r = 0.71, p < 0.0001). The subjects with severe MND at 7 y had a reduced neuroretinal rim area [median (range), 1.57 mm(2) (1.37-1.78 mm(2))] compared with those with less severe MND [1.94 mm(2) (1.33-2.71 mm(2))] and with those with normal neurologic function [2.18 mm(2) (1.75-2.70 mm(2)); p < 0.05 and p < 0.0001, respectively]. A decrease in neuroretinal rim area reflects either a reduction in axonal volume or a decrease in the number of axons in the optic nerve. It is yet unclear whether this finding represents neuronal changes within other cerebral regions in subjects with IUGR.
journal_name
Pediatr Resjournal_title
Pediatric researchauthors
Ley D,Marsal K,Dahlgren J,Hellstrom Adoi
10.1203/01.PDR.0000129660.32875.09subject
Has Abstractpub_date
2004-07-01 00:00:00pages
139-43issue
1eissn
0031-3998issn
1530-0447pii
01.PDR.0000129660.32875.09journal_volume
56pub_type
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