Intracranial Hemorrhage in Small-for-gestational-age Neonates: Comparison With Weight-matched Appropriate-for-gestational-age Infants

Abstract

In a comparative study of 93 small-for-gestational-age (SGA) infants against 93 weight-matched, appropriate-for-gestational-age (AGA) neonates, the SGA group exhibited a significantly lower incidence of periventricular-intraventricular type intracranial hemorrhage (ICH) at the first ultrasound scan than did the AGA neonates (9/93 vs 21/93; p < 0.02). This apparent advantage was no longer maintained in later scans of the first week (16/93 vs 27/93; NS), despite the fact that the SGA group were 4 weeks advanced in gestational age and had fewer respiratory problems than the AGA controls. It is prudent, therefore, to follow SGA infants closely for ICH by repeat ultrasound examinations even if the first scan is negative. Evaluation of the subgroup of SGA infants with ICH against the total SGA population revealed lower admission body temperature and Apgar scores, and higher incidence of asphyxia, resuscitation, and mortality. The above observations in SGA infants with ICH and the lack of a similar trend between the AGA infants with ICH and the total AGA population suggest that SGA status, hypothermia, and ICH are interrelated. Hypothermia, therefore, can be used as a convenient marker for the possibility of ICH in low birth weight SGA infants. The authors' data is consistent with the view that hypothermia and ICH are both the consequences of perinatal asphyxia in SGA infants and probably reflect the magnitude of stormy perinatal events.

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