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Published on: September 14, 2010
Kawasaki disease: basic and pathological findings.
Kei Takahashi1, Toshiaki Oharaseki2, Yuki Yokouchi2
1Department of Pathology, Toho University Ohashi Medical Center, 2-17-6 Ohashi, Meguro, Tokyo, 153-8515, Japan. keitak@oha.toho-u.ac.jp.
Clinical and Experimental Nephrology
|November 29, 2012
Summary
Kawasaki disease (KD) is a systemic vasculitis affecting children, causing inflammation and damage to medium-sized arteries, particularly coronary arteries. Its exact cause is unknown, but infections and genetics play a role in its pathogenesis.
Area of Science:
- Pediatrics
- Rheumatology
- Cardiology
Background:
- Kawasaki disease (KD) is a systemic vasculitis primarily affecting infants and young children.
- It targets medium-sized muscular arteries, with a significant predilection for coronary arteries.
- The precise etiology remains unknown, though infectious agents and host genetics are implicated.
Purpose of the Study:
- To elucidate the pathological progression of coronary arteritis in Kawasaki disease.
- To understand the role of inflammatory cells, particularly monocytes/macrophages, in vascular lesion development.
- To describe the evolution of arterial lesions from acute to chronic stages.
Main Methods:
- Histological examination of arterial tissues at various stages post-KD onset.
- Analysis of inflammatory cell infiltration and accumulation.
- Observation of vascular structural changes, including dilation, aneurysm formation, and remodeling.
Main Results:
- Coronary arteritis initiates 6-8 days after KD onset, involving all arterial layers.
- Marked accumulation and aberrant activation of monocytes/macrophages characterize the inflammation.
- Vascular lesions progress synchronously from acute inflammation to chronic injury, potentially leading to long-term structural changes like aneurysms.
Conclusions:
- Kawasaki disease involves a profound inflammatory process targeting medium-sized arteries, especially coronary arteries.
- Monocyte/macrophage activation is central to the pathogenesis of KD vasculitis.
- The dynamic evolution of arterial lesions highlights the potential for lasting cardiovascular complications.
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