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Bradycardia in preterm infants: indications and hazards of atropine therapy

J Kattwinkel, A A Fanaroff, M H Klaus

    Pediatrics
    |October 1, 1976
    PubMed

    Insights

    Atropine can treat reflex bradycardia in preterm infants, but may harm those with hypoxic bradycardia. Careful evaluation of monitoring, blood gases, and clinical status is crucial before administering atropine.

    Area of Science:

    • Neonatal Medicine
    • Pediatric Cardiology
    • Pharmacology

    Background:

    • Bradycardia is a significant concern in high-risk preterm infants.
    • Identifying the cause of bradycardia is critical for appropriate treatment.
    • Atropine is a potential treatment for certain types of bradycardia.

    Observation:

    • Eight preterm infants experiencing bradycardia were studied.
    • Bradycardia occurred after nipple feedings, gavage feedings, and surgical manipulation.
    • One infant's bradycardia was associated with chronic pulmonary disease.

    Findings:

    • Seven cases suggested 'reflexic bradycardia,' likely vagally mediated and responsive to atropine.
    • One case indicated 'hypoxic bradycardia,' where atropine could be detrimental.
    • Distinguishing between reflexic and hypoxic bradycardia is essential.

    Implications:

    • Polygraphic monitoring, arterial blood gases, and clinical assessment aid in differentiating bradycardia types.
    • These parameters must be evaluated before initiating atropine therapy in preterm neonates.
    • This distinction ensures safe and effective management of bradycardia in high-risk premature nurseries.

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