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  • Title: Tc-99m HMPAO labeled WBC scan for the detection of myocarditis in different phases of Kawasaki disease.
    Author: Kao CH, Hsieh KS, Wang YL, Chen CW, Liao SQ, Wang SJ, Yeh SH.
    Journal: Clin Nucl Med; 1992 Mar; 17(3):185-90. PubMed ID: 1611788.
    Abstract:
    Myocardial imaging with Tc-99m HMPAO WBC was used to detect myocarditis of Kawasaki disease in 103 infants and children (66 boys and 37 girls, mean age 3 years and 4 months). The clinical course of Kawasaki disease may be divided into three phases, from the onset of illness onset until all clinical symptoms and signs have disappeared. Twenty-four hour myocardial imaging was performed in anterior, LAO, and left lateral views. The grading system was as follows: score 0 less than bone uptake; 1 = bone uptake; 2 greater than bone uptake; and 3 greater than or equal to liver uptake. If the score was greater than or equal to 2, significant myocarditis was considered. The appearing ratio of myocarditis was 57% (13/23) in the first phase; 65% (15/23) in the second phase; 54% (31/57) in the third phase. No significant difference was demonstrated among the three groups of patients (P greater than 0.1, by Chi-square test). In conclusion, an occult myocarditis may continue in all three phases of Kawasaki disease, even if the clinical symptoms and signs had improved by the evidence of Tc-99m HMPAO labeled WBC scan to avoid advanced cardiac complication.
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