Pericardial effusion complicating novel influenza A (H1N1) infection in an infant

Katalin Koranyi1, Dustin Yontz, Zachary Rohrer

  • 1College of Medicine, The Ohio State University, Nationwide Children's Hospital, Columbus, OH, USA. kkoranyi@chi.osu.edu

Insights

A 3-month-old boy experienced pericardial effusion during a novel influenza A (H1N1) infection. Treatment with pericardial drainage, oseltamivir, and ibuprofen led to recovery, marking the first reported case in this pandemic.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Cardiology

Background:

  • Influenza A virus infections are occasionally linked to cardiac complications like pericarditis.
  • The novel influenza A (H1N1) strain emerged as a significant global health concern.
  • Pericardial effusion, a buildup of fluid around the heart, requires prompt diagnosis and management.

Observation:

  • A 3-month-old infant presented with symptoms of novel influenza A (H1N1) infection.
  • The infant developed a pericardial effusion as a complication of the influenza infection.
  • Clinical signs indicated significant fluid accumulation within the pericardial sac.

Findings:

  • The patient was diagnosed with concurrent novel influenza A (H1N1) infection and pericardial effusion.
  • Treatment involved pericardial drainage to remove excess fluid, antiviral medication (oseltamivir), and anti-inflammatory drugs (ibuprofen).
  • The infant showed marked clinical improvement following the intervention.

Implications:

  • This case highlights a rare but serious cardiac complication of novel influenza A (H1N1) infection in infants.
  • Early recognition and multidisciplinary management, including drainage and antiviral therapy, are crucial for favorable outcomes.
  • Further surveillance is warranted to understand the full spectrum of cardiac manifestations associated with this influenza strain.

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