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  • Title: Long-term outcome of coronary abnormalities in patients after Kawasaki disease.
    Author: Fukushige J, Takahashi N, Ueda K, Hijii T, Igarashi H, Ohshima A.
    Journal: Pediatr Cardiol; 1996; 17(2):71-6. PubMed ID: 8833489.
    Abstract:
    From January 1973 through December 1992, a total of 302 patients (183 males, 119 females) with Kawasaki disease (KD) underwent coronary angiography. The age at onset of KD ranged from 2 months to 12.3 years (median 1.4 years). The age at the first angiographic evaluation ranged from 6 months to 17 years (median 3.5 years). Most of the patients (85%) had suffered from KD before 1985 and thus were treated without benefit of gamma-globulin. Follow-up varied from 6 months to 25.8 years (median 13.6 years). Coronary abnormalities were confirmed in 71 (23.5%) of 302 patients; the left coronary artery (LCA) alone was involved in 36 cases, the right coronary artery (RCA) alone in 10 cases, and both arteries in 25 cases. Serial angiographic evaluation of the 42 cases revealed different attitudes in the progress of coronary abnormalities. All large aneurysms showed a tendency to regress, although some progressed to stenotic lesions. Moderate aneurysms stayed unchanged, regressed, or progressed to stenosis or obstruction. Small aneurysm never became stenotic and frequently regressed to normal internal diameter. Aneurysms of the RCA tended to regress relatively early during the follow-up period, whereas those of the LCA gradually progressed to stenotic lesions. In 7 of 35 patients with RCA lesions, aneurysms progressed to complete obstruction and subsequent recanalization within 0.5 to 7.7 years (median 3.6 years) after the onset of KD. Most of the patients with coronary artery sequelae after KD remain asymptomatic. Serial angiographic observation is indicated for those patients who develop large coronary aneurysms during the acute phase of KD. The standard 12-lead electrocardiogram, chest roentgenogram, and exercise stress test are less sensitive for detecting and evaluating patients with coronary sequelae. For the screening of myocardial ischemia after KD, stress thallium 201 scintigraphy with dipyridamole infusion is recommended.
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