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Repeated quantitative angiograms in coronary arterial aneurysm in Kawasaki disease
Insights
Kawasaki disease can cause coronary artery aneurysms. A new grading system based on aneurysm size helps predict long-term outcomes and guides patient management for coronary artery disease.
Area of Science:
- Cardiology
- Pediatric Rheumatology
- Diagnostic Imaging
Background:
- Kawasaki disease frequently leads to coronary artery aneurysms.
- Accurate assessment of coronary artery lesions is crucial for managing patients.
Purpose of the Study:
- To establish a quantitative grading system for coronary aneurysms in Kawasaki disease.
- To correlate aneurysm severity with patient prognosis and disease progression.
Main Methods:
- Retrospective analysis of 188 coronary angiograms.
- Development of a 4-grade system (0-III) based on maximal aneurysm diameter.
- Longitudinal follow-up observations to track aneurysm evolution.
Main Results:
- Grade 0: Normal coronary arteries.
- Grade I (mild, <4.0 mm): Often regressed, good prognosis.
- Grade II (moderate, 4.0-8.0 mm): Varied course, eventual reduction in size.
- Grade III (severe, >8.0 mm): Frequently progressed to obstructive lesions or persistent aneurysms.
Conclusions:
- The proposed grading system effectively categorizes coronary aneurysm severity in Kawasaki disease.
- Initial aneurysm size and distribution are key predictors of long-term coronary artery disease progression.
- This grading provides valuable criteria for predicting patient prognosis.
Abstract:
Accurate evaluation of the extent of coronary artery lesions complicating Kawasaki disease is clinically important in patient management. Based on a total of 188 coronary angiograms and retrospective follow-up observations, the condition of coronary aneurysms was quantitatively graded as: 0 (normal)--no significant enlargement in any portion of the coronary artery; I (mild)--aneurysmal dilatation of the coronary artery evident but localized, with a maximal diameter of less than 4.0 mm; II (moderate)--maximal diameter of coronary aneurysms between 4.0 and 8.0 mm, regardless of body size; III (severe)--giant aneurysms, with the maximal diameter greater than 8.0 mm. Most mild coronary aneurysms regressed to normal within a short time, and the patient's prognosis was good. The course of grade II aneurysms varied, depending on initial angiographic coronary diameter, but all were eventually reduced in coronary size. In contrast, grade III aneurysms usually progressed to become obstructive or stenotic coronary lesions, or the large aneurysm persisted. Follow-up observations revealed that the course of coronary artery disease depended on the size and distribution of aneurysms at initial angiography. This grading of the severity of coronary lesions may provide useful criteria for predicting the prognosis of patients with Kawasaki disease.