Kawasaki disease in siblings in close temporal proximity to each other-what are the implications?

Area of Science:

• Pediatrics
• Immunology
• Rheumatology

Background:

• Kawasaki disease (KD) is the most frequent medium vessel vasculitis in children.
• The exact cause of KD is unknown, but infections are suspected triggers in genetically predisposed individuals.
• Familial clustering, particularly KD cases in siblings diagnosed closely in time, supports the infection hypothesis.

Purpose of the Study:

• To review English language reports of KD in siblings diagnosed within one month of each other.
• To highlight the etiological and therapeutic implications of KD occurring in siblings.
• To emphasize the importance of considering KD in febrile siblings of affected children.

Main Methods:

• Literature review of 16 English language case reports.
• Analysis of KD cases occurring in siblings within a 1-month interval.
• Synthesis of findings related to etiology and treatment.

Main Results:

• Sibling cases of KD diagnosed within a short timeframe were identified.
• Increased risk of KD in siblings of affected children was noted.
• The review underscores the potential role of infectious agents and genetic susceptibility.

Conclusions:

• KD should be suspected in febrile children with a recently diagnosed sibling.
• Screening febrile siblings of KD patients is prudent for early diagnosis and treatment.
• Etiological research should investigate familial clustering and temporal proximity of KD cases.