Rickets of prematurity- a case report

E A Adejuyigbe1, O C Famurewa, T Adegboyega

  • 1Department of Paediatrics and Child Health, Obafemi Awolowo University Teaching Hospital Complex, Ile-Ife, Nigeria.

Insights

Rickets of prematurity can affect very low birth weight infants in Nigeria, even with vitamin D supplementation. This case highlights mineral deficiency as a key factor in breastfed premature neonates.

Area of Science:

  • Neonatology
  • Pediatric Endocrinology
  • Nutritional Science

Background:

  • Rickets of prematurity is a significant concern in very low birth weight (VLBW) infants.
  • Exclusive breastfeeding, while beneficial, can pose challenges in meeting the high nutritional demands of premature neonates.
  • Understanding the aetiology is crucial for timely intervention and prevention strategies.

Observation:

  • A case of an 800-gram premature male neonate (28 weeks gestation) born via C-section due to severe pre-eclampsia.
  • The infant received exclusive breastfeeding for seven months, experienced two sepsis episodes, and was supplemented with vitamin D drops (400 IU/0.6 ml) from two weeks of age.
  • The infant presented at 30 weeks postnatal age with clinical, biochemical, and radiological signs of rickets after defaulting from follow-up.

Findings:

  • The patient developed overt signs of rickets despite vitamin D supplementation, suggesting a potential role for other mineral deficiencies.
  • Biochemical and radiological assessments confirmed rickets, which subsequently responded well to calcium and phosphate supplementation.
  • This case underscores the complex interplay of factors contributing to rickets of prematurity.

Implications:

  • Highlights the critical need for monitoring mineral status (calcium, phosphate) in VLBW infants, particularly those exclusively breastfed.
  • Suggests that standard vitamin D supplementation may not be sufficient to prevent rickets in all VLBW infants, emphasizing the importance of adequate mineral intake.
  • Informs clinical practice regarding the aetiology and management of rickets of prematurity in resource-limited settings like Nigeria.
Abstract