Very Early Development and Recognition of Coronary Involvement in a Febrile Infant with Typical Signs of Kawasaki...

Area of Science:

• Pediatric Rheumatology
• Cardiovascular Inflammation
• Infectious Disease Mimics

Background:

• Kawasaki disease (KD) is an acute, self-limited vasculitis primarily affecting medium-sized arteries, with coronary artery aneurysms a significant concern in untreated cases.
• Diagnosis relies on clinical criteria, typically requiring ≥5 days of fever and ≥4 of 5 principal clinical features.
• Early recognition and intervention are crucial to prevent cardiac sequelae.

Observation:

• A unique case of Kawasaki disease presented with exceptionally rapid onset, manifesting typical signs on day 1 of illness.
• Coronary artery involvement was transient and detected early in the disease course.
• The patient met the diagnostic criteria for KD very early, allowing for prompt management.

Findings:

• The patient was diagnosed on day 2 and initiated treatment with aspirin and steroids on day 3.
• Complete resolution of clinical symptoms and coronary artery abnormalities was achieved following treatment.
• This represents the earliest documented onset and diagnosis of typical Kawasaki disease with transient coronary involvement.

Implications:

• This case underscores the possibility of extremely early Kawasaki disease development and transient coronary involvement.
• Prompt diagnosis and aggressive early treatment can lead to favorable outcomes, even in rapidly progressing cases.
• Highlights the need for heightened clinical suspicion for KD in febrile children, irrespective of symptom duration, to enable timely intervention and prevent long-term cardiovascular complications.