World journal of clinical pediatrics · 2025
Giant coronary aneurysms in children with Kawasaki disease and major cardiac complications and dynamic follow-up.
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Bregel Liudmila V, Efremova Olesya S, Podkamenny Vladimir A, Kozlov Yurii A, Kostik Mikhail M
Аннотация
BACKGROUND: Giant coronary artery aneurysms (CAA), entailing thrombosis, myocardial infarction, and sudden death, are the most severe and life-threatening complications of Kawasaki disease (KD). Giant aneurysms rarely regress and can later transform into stenoses. Data on dynamic follow-up are scarce in the literature.
AIM: To evaluate clinical features and long-term outcomes of giant CAA in children with KD.
METHODS: A single-center retrospective study included data from patients with KD and giant CAA in the Irkutsk region (2012-2023). CAA criteria according to the American Heart Association guidelines of 2017 were used: (1) Dilated coronary artery with diameter Z-score > 2 standard deviations (SD) but < 2.5 SD; (2) Small CAA with Z-score > 2.5 SD but < 5 SD; (3) Medium CAA with Z-score > 5 SD but < 10 SD; and (4) Giant CAA with Z-score > 10 SD or ≥ 8 mm.
RESULTS: The mean age of children with coronary dilatation/aneurysms was 2.5 years, and the male-to-female ratio was 3:1. Patients with giant/medium CAA had symptoms of cerebral dysfunction more often compared with children with moderate (Z-score < 5 SD but > 2.0 SD) coronary dilatation (62.0% vs 21.0%, P = 0.019). Major cardiovascular events (myocardial infarction, coronary artery bypass grafting, acute coronary syndrome, ischemic cardiomyopathy, left ventricular aneurysm, and giant extracardiac aneurysm) occurred in 55.5% of patients who had giant CAA. At follow-up the complete regression of giant/medium CAA was observed in 58.0% and partial regression in 42.0% after a mean of 2.3 and 5.5 years, respectively. All thrombi detected by echocardiography, CT, and angiography in giant/medium CAA disappeared between 1 year and 5 years (mean: 15 months). All patients survived.
CONCLUSION: Risk factors for giant CAA were male sex, early age, and cerebral dysfunction. Complete regression of giant coronary aneurysms occurred in 58.0% of patients after follow-up of 2.3 years.
AIM: To evaluate clinical features and long-term outcomes of giant CAA in children with KD.
METHODS: A single-center retrospective study included data from patients with KD and giant CAA in the Irkutsk region (2012-2023). CAA criteria according to the American Heart Association guidelines of 2017 were used: (1) Dilated coronary artery with diameter Z-score > 2 standard deviations (SD) but < 2.5 SD; (2) Small CAA with Z-score > 2.5 SD but < 5 SD; (3) Medium CAA with Z-score > 5 SD but < 10 SD; and (4) Giant CAA with Z-score > 10 SD or ≥ 8 mm.
RESULTS: The mean age of children with coronary dilatation/aneurysms was 2.5 years, and the male-to-female ratio was 3:1. Patients with giant/medium CAA had symptoms of cerebral dysfunction more often compared with children with moderate (Z-score < 5 SD but > 2.0 SD) coronary dilatation (62.0% vs 21.0%, P = 0.019). Major cardiovascular events (myocardial infarction, coronary artery bypass grafting, acute coronary syndrome, ischemic cardiomyopathy, left ventricular aneurysm, and giant extracardiac aneurysm) occurred in 55.5% of patients who had giant CAA. At follow-up the complete regression of giant/medium CAA was observed in 58.0% and partial regression in 42.0% after a mean of 2.3 and 5.5 years, respectively. All thrombi detected by echocardiography, CT, and angiography in giant/medium CAA disappeared between 1 year and 5 years (mean: 15 months). All patients survived.
CONCLUSION: Risk factors for giant CAA were male sex, early age, and cerebral dysfunction. Complete regression of giant coronary aneurysms occurred in 58.0% of patients after follow-up of 2.3 years.