Hyperinsulinaemic hypoglycaemia in preterm neonates

K Hussain1, A Aynsley-Green

  • 1London Centre for Paediatric Endocrinology and Metabolism, Great Ormond Street Hospital for Children NHS Trust, London WC1N 3JH, UK. K.Hussain@ich.ucl.ac.uk

Insights

Severe hyperinsulinism (HI) in premature infants is a serious condition causing recurrent hypoglycemia. This study highlights that HI in preterm infants may present as a more aggressive illness, requiring consideration in differential diagnoses.

Area of Science:

  • Neonatology
  • Pediatric Endocrinology
  • Metabolic Disorders

Background:

  • Hyperinsulinism in infancy (HI) is a primary cause of severe hypoglycemia in newborns.
  • Typically observed in term infants, HI in premature infants is rarely reported.

Purpose of the Study:

  • To report on the occurrence and characteristics of severe persistent hyperinsulinism in a cohort of prematurely born infants.
  • To assess the clinical presentation and management challenges of HI in preterm neonates.

Main Methods:

  • Case series report of seven infants born between 31-36 weeks gestation.
  • Clinical data including gestational age, birth weight, and management difficulties were analyzed.

Main Results:

  • Seven premature infants (31-36 weeks gestation) presented with severe persistent hyperinsulinism.
  • Two infants were large for gestational age; all cases were difficult to manage.
  • This suggests a potentially more aggressive form of HI in the context of prematurity.

Conclusions:

  • Hyperinsulinism in infancy should be considered in the differential diagnosis of severe hypoglycemia in preterm infants.
  • The association of HI with prematurity may indicate a more severe clinical course.
  • Early recognition and management are crucial for affected preterm neonates.

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