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Abstract
Objective: Small-for-gestational-age (SGA) neonates (birth weight <10th centile) are at higher risk of altered glucose homeostasis compared to appropriate for gestational age (AGA) neonates. The aim of this matched case–control study was to estimate the incidence of hypoglycaemia and/or hyperglycaemia in monochorionic (MC) twins with selective intrauterine growth restriction (sIUGR).
Methods: We included all MC twins with sIUGR (2002–2013). Neonates in the SGA group were matched with their AGA co-twin. We recorded the occurrence of hypoglycaemia and hyperglycaemia in the first 48 h after birth and studied the association with SGA.
Results: In this retrospective study were 126 twin pairs included. The incidence of hypoglycaemia in the SGA group and AGA group was 29.6% and 17.4%, respectively, hyperglycaemia occurred in 8.7% of the SGA neonates and in 2.6% of the AGA co-twins. Multivariate analysis showed an independent association of SGA with hypoglycaemia (OR 1.97, CI 1.23–3.18, p ≤ 0.01), but not with hyperglycaemia (OR 2.57, CI 1.64–10.28, p = 0.182). Low gestational age (GA) at birth (OR 1.65, CI 1.09–2.48, p = 0.02) showed an independent association with hyperglycaemia.
Conclusions: The risk of hypoglycaemia is almost twofold higher in SGA neonates compared to their MC AGA twins. Low GA appeared to be an independent risk factor for hyperglycaemia in SGA neonates.
Declaration of interest
The authors report no declarations of interest.