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  • Title: Clinical significance of morphologic classification of coronary arterial segmental stenosis due to Kawasaki disease.
    Author: Suzuki A, Kamiya T, Ono Y, Kinoshita Y, Kawamura S, Kimura K.
    Journal: Am J Cardiol; 1993 May 15; 71(13):1169-73. PubMed ID: 8480642.
    Abstract:
    Coronary arteriograms obtained in 1,392 patients from a cohort of 4,562 with Kawasaki disease showed 395 to have coronary arterial lesions. The specific lesions, known as segmental stenoses, were observed in 62 patients, involving 68 coronary arterial branches. The lesions involved the right coronary artery in 56 cases (14.2% of the group with arterial lesions) and the left coronary artery in the other 12 (3% of the overall group with arterial lesions). Three morphologic variations were observed. Braid-like lesions accounted for 15 lesions, involving the right coronary artery and occurring < 2 years after the onset of Kawasaki disease. Bridging vessels were observed in 40 of 68 arterial lesions, 30 of which involved the right coronary artery. Of these bridging vessels, 86% were present within 4 years of onset of the disease. Pericoronary communications were observed in the remaining 13 of 68 lesions, 11 involving the right coronary artery and appearing at variable intervals, but usually significantly later than the other lesions. Myocardial ischemia was found at the first study in 60% of braid-like lesions, but in only 29% of the lesions at follow-up studies. Of bridging vessels or pericoronary communications, 95 and 77%, respectively, were found to have produced ischemia in the initial study, which persisted in 78 and 77%, respectively. There are 3 different mechanisms involved in the formation of segmental stenosis, with different prognoses for the clinical course of myocardial ischemia.
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