Transient neonatal diabetes mellitus in extremely preterm infant

Area of Science:

• Neonatology
• Endocrinology
• Pediatric Diabetes

Background:

• Transient neonatal diabetes mellitus (TNDM) is a rare condition affecting newborns.
• Preterm infants, especially those with intrauterine growth retardation (IUGR), present unique challenges in metabolic management.
• Understanding the timing and recovery of insulin secretion in TNDM is crucial for optimal infant care.

Observation:

• A case report details an extremely preterm infant (27 weeks gestation, 718 g) with IUGR.
• The infant developed hyperglycemia on the first day of life, requiring insulin therapy.
• Insulin administration was successfully discontinued at 89 days of life, shortly before the infant's original due date.

Findings:

• This case suggests that impaired insulin secretion in TNDM can originate as early as the second trimester of pregnancy.
• The study indicates that the duration required for insulin secretion to recover in TNDM is not necessarily correlated with the infant's gestational maturity.

Implications:

• Early identification and management of hyperglycemia in preterm infants are essential.
• The findings contribute to a better understanding of the pathophysiology of TNDM in extremely preterm infants.
• This case highlights the potential for TNDM resolution irrespective of the degree of prematurity, informing clinical expectations and management strategies.