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Published on: April 13, 2015
Coronary artery changes in patients with Kawasaki disease
1Department of Congenital Heart Disease, Guy's and St. Thomas' Hospitals NHS Trust, London, United Kingdom. robert.tulloh@gstt.sthames.nhs.uk
Insights
Kawasaki disease (KD) is a childhood vasculitis affecting coronary arteries. Prompt treatment with immunoglobulin and aspirin significantly reduces cardiac complications.
Area of Science:
- Pediatric Rheumatology
- Cardiovascular Medicine
- Immunology
Background:
- Kawasaki disease (KD) is an acute, self-limiting vasculitis primarily affecting young children.
- It is the leading cause of acquired coronary vessel abnormalities in pediatric populations.
- The etiology remains unknown, but genetic predisposition and inflammatory responses are implicated.
Purpose of the Study:
- To summarize the current understanding of Kawasaki disease.
- To highlight the diagnostic challenges and effective treatments.
- To discuss potential long-term sequelae and future research directions.
Main Methods:
- Review of existing literature on Kawasaki disease.
- Analysis of treatment efficacy and outcomes.
- Discussion of diagnostic modalities and long-term monitoring.
Main Results:
- Kawasaki disease predominantly affects children aged 6 months to 5 years.
- Intravenous immunoglobulin and aspirin therapy reduce cardiac complication risk from 25% to 4.7%.
- Potential acute and chronic sequelae include myocardial, endocardial, or pericardial inflammation and coronary artery abnormalities.
Conclusions:
- Early diagnosis and treatment are crucial for mitigating cardiac complications in Kawasaki disease.
- Ongoing monitoring is necessary to detect long-term sequelae, such as coronary artery abnormalities.
- Further research is needed for definitive diagnostic tests, prophylaxis, and susceptibility prediction.
Abstract:
Kawasaki disease (KD) is an acute, self-limiting, systemic vasculitis of unknown aetiology, which most commonly occurs in children aged 6 mo to 5 y, with a peak incidence at 9-11 mo. The inflammatory process preferentially involves the coronary arteries, potentially resulting in coronary arteritis, aneurysmal lesions, arterial thrombotic occlusion and sudden death. Kawasaki disease is the most common cause of acquired coronary vessel abnormalities in children. The cause of KD is not known, but evidence is presented for an inflammatory response and a genetic predisposition. The diagnostic tests are not yet defined, but treatment with immunoglobulin and aspirin is effective at reducing the risk of cardiac complications from 25% to 4.7% in the UK. Sequelae may occur, either acutely with myocardial, endocardial or pericardial inflammation, or many years after the original illness. There may be abnormalities of myocardial blood flow as assessed by MRI, radio-nucleide studies or echo Doppler. Such abnormalities of coronary arteries may require ongoing medication, interventional catheterization or even cardiac surgery. In the future, we hope to have more accurate diagnostic tests or prophylaxis against the disease, in addition to improved means of determining the susceptibility to or presence of long-term complications.
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