Kawasaki syndrome and concurrent Coxsackie virus B3 infection

Area of Science:

• Pediatrics
• Infectious Diseases
• Cardiology

Background:

• Kawasaki syndrome is an acute febrile illness primarily affecting young children, characterized by vasculitis of medium-sized arteries, particularly the coronary arteries.
• The etiology of Kawasaki syndrome remains largely unknown, with viral infections and environmental factors being investigated as potential triggers.
• Current treatment involves intravenous immunoglobulin and aspirin to reduce inflammation and prevent coronary artery abnormalities.

Observation:

• Two previously healthy children presented with clinical signs consistent with Kawasaki syndrome.
• Both children were treated with intravenous immunoglobulins and acetylsalicylic acid.
• Coxsackie virus infection, specifically serotype B3, was concurrently detected in both patients via enzyme-linked immunosorbent assay and complement fixation tests.

Findings:

• Both patients exhibited hyperechogenic coronary arteries during the acute phase of their illness.
• No significant cardiologic sequelae were observed in the mid-term follow-up for either child.
• The concurrent presence of Coxsackie virus B3 infection was noted in both Kawasaki syndrome cases.

Implications:

• The findings suggest a potential, though hypothetical, etiological relationship between Coxsackie virus B3 and Kawasaki syndrome.
• Identifying specific environmental triggers associated with such infections could enhance epidemiological surveillance for Kawasaki syndrome.
• Further research is warranted to elucidate the intricate biological mechanisms linking viral infections to Kawasaki syndrome pathogenesis.