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Significant Cardiac Rhythm Disturbances in Infant Bronchiolitis: A Holter-Based Prospective Analysis.

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Area of Science:

  • Pediatrics
  • Cardiology
  • Infectious Diseases

Background:

  • Bronchiolitis is a common infant respiratory illness.
  • Cardiac arrhythmias during bronchiolitis are infrequently studied but can be severe.
  • The link between bronchiolitis and arrhythmias needs further investigation.

Purpose of the Study:

  • To determine the incidence and characteristics of cardiac arrhythmias in infants hospitalized with bronchiolitis.
  • To assess the association between bronchiolitis and arrhythmias in infants under 1 year old.

Main Methods:

  • Prospective, single-center cohort study.
  • 100 infants hospitalized with bronchiolitis were enrolled.
  • Overnight Holter monitoring was performed during hospitalization.

Main Results:

  • 18% of infants (18/100) had arrhythmias, including sinus arrest, bradycardia, and atrial premature complexes.
  • Respiratory syncytial virus (RSV) was present in 79% of infants.
  • No demographic or clinical predictors for arrhythmias were found.

Conclusions:

  • Bronchiolitis is associated with significant cardiac arrhythmias in infants.
  • Arrhythmias often resolved spontaneously, indicating potential for delayed intervention.
  • Clinicians should consider the transient nature of these arrhythmias before pacemaker implantation.