Predictive Factors of Medium-Large Coronary Artery Aneurysm in Children with Acute Kawasaki Disease: A Retrospective Cohort Study
Abstract Background: The severity of the cardiac complications resulting from Kawasaki disease (KD) appears to be directly correlated to the magnitude of the coronary artery aneurysm (CAA). However, there remains some unclear about the risk factors for medium-large CAA identified after acute KD.Methods: We analyzed 90 patients diagnosed with CAA in KD hospitalized from January 2013 through August 2021. Patients were stratified based on the coronary artery z-score adjusted for body surface area as the medium-large CAA group and small-sized CAA group. The association of baseline characteristics was investigated within the groups. Multivariable logistic regression analyses were performed to evaluate potential risk factors associated with medium-large CAA development.Results: In total, 353 pediatric cases with KD were investigated during the study period, of whom 90 (25.5%) presented with CAA, including medium-large CAA in 20 patients (5.7%) after acute KD. The medium-large CAA group showed significantly higher Harada risk scores, the incidence of thrombosis, serum globulin concentration values, proportions of C-reactive protein > 40 mg/L, proportions of albumin < 35 g/L, and lower values of albumin-to-globulin ratio (A/G ratio) than those in the small-sized CAA group (P < 0.05). Medium-large CAA was significantly associated with the A/G ratio (odds ratio, 3.503; 95% confidence interval [CI]: 1.068–11.492). The area under the receiver operating characteristic curve was 0.684 (95% CI: 0.558–0.810), and the cutoff point of 1.35 showed a sensitivity and specificity for predicting medium-large CAA of 80% and 59%, respectively.Conclusions: A lower A/G ratio independently predicts medium-large CAA in patients with KD. Medium-large CAA is associated with greater odds of developing thrombosis. Thus, close monitoring with routine echocardiography is recommended.