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Respiratory distress with pamidronate treatment in infants with severe osteogenesis imperfecta

Craig F Munns1, Frank Rauch, Richard J Mier

  • 1Genetics Unit, Shriners Hospital for Children and McGill University, Montréal, Québec, Canada.

Bone
|June 23, 2004
PubMed

Insights

The first pamidronate infusion cycle may cause temporary breathing problems in infants with severe osteogenesis imperfecta (OI) and existing respiratory issues. Close monitoring during this initial treatment is crucial for managing potential adverse respiratory events.

Area of Science:

  • Pediatrics
  • Pharmacology
  • Genetics

Background:

  • Severe osteogenesis imperfecta (OI) is a rare genetic disorder characterized by brittle bones.
  • Pamidronate is a bisphosphonate used to treat OI by reducing bone resorption.
  • Infants with severe OI often have associated medical conditions, including respiratory compromise.

Observation:

  • An observational trial involved 59 infants with severe OI receiving cyclical intravenous pamidronate.
  • Routine observations were conducted during each infusion cycle.
  • Four infants (7%) with pre-existing respiratory compromise experienced respiratory distress during their first pamidronate cycle.

Findings:

  • Adverse respiratory events, including respiratory distress, were observed in a subset of infants during the initial pamidronate cycle.
  • The respiratory distress was manageable with bronchodilator therapy, with two infants requiring intensive care.
  • No recurrence of respiratory distress was noted in subsequent pamidronate infusion cycles.

Implications:

  • The first pamidronate infusion cycle may precipitate acute respiratory deterioration in vulnerable infants with severe OI.
  • Potential etiologies include cytokine release or hemodynamic changes from fluid administration.
  • Close monitoring during the first treatment cycle is essential for early detection and management of respiratory complications.

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