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Functional atrioventricular block in a preterm infant.

S Al-Wahab1, P Munyard

  • 1Department of Child Health, Royal Cornwall Hospital Trust, Truro, Cornwall TR1 3LJ, UK.

Archives of Disease in Childhood. Fetal and Neonatal Edition
|October 23, 2001
PubMed
Summary

A preterm infant experienced second-degree atrioventricular block due to early hypocalcemia. Prompt treatment with calcium gluconate successfully resolved the cardiac arrhythmia.

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Area of Science:

  • Neonatal Medicine
  • Pediatric Cardiology
  • Endocrinology

Background:

  • Atrioventricular block is a rare condition in neonates.
  • Hypocalcemia can manifest with various cardiac dysrhythmias.
  • Preterm infants are particularly vulnerable to metabolic disturbances.

Observation:

  • A case of functional second-degree atrioventricular block was identified in a preterm infant.
  • The arrhythmia was found to be secondary to early-onset hypocalcemia.

Findings:

  • Intravenous infusion of 10% calcium gluconate was administered.
  • The calcium gluconate infusion rapidly corrected the atrioventricular block.

Implications:

  • This case highlights the importance of monitoring calcium levels in preterm infants.
  • Early recognition and treatment of hypocalcemia can prevent severe cardiac complications.
  • Calcium supplementation is an effective treatment for hypocalcemia-induced arrhythmias in neonates.

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