Evaluation of subclinical left ventricular systolic dysfunction in patients with acute-phase Kawasaki disease by hematological indices, layer-specific left ventricular longitudinal strain and global myocardial work

Right ventricular-pulmonary artery coupling is an independent risk factor for coronary artery lesions in children with Kawasaki disease

BACKGROUND

The recognition ability of right ventricular-pulmonary artery (RV-PA) coupling for coronary artery lesions (CAL) in children with Kawasaki disease (KD) has not been well characterized. This study aimed to determine whether RV-PA coupling is an independent the risk factors for CAL in children with KD.

METHODS

Between October 2021 and August 2023, RV-PA coupling was assessed in 59 KD children using the ratio between echocardiographic tricuspid annular plane systolic excursion and pulmonary artery systolic pressure (PASP). Multivariable logistic regression analysis was used to identify the independent risk factors for CAL among the demographic, clinical, laboratory and echocardiographic data.

RESULTS

Twenty-nine of 59 KD children had CAL according to the diagnostic criteria of echocardiography. There were significantly different white blood cell count, C-reactive protein, erythrocyte sedimentation rate, left ventricular ejection fraction, PASP and RV-PA coupling at admission, and significantly different acute/subacute phase ratio of RV-PA coupling between KD children with and without CAL ( P  < 0.05). Multivariate logistic regression analysis identified that acute/subacute phase ratio of RV-PA coupling (OR = 26.800; 95% CI, 1.276-562.668; P  = 0.034) was an independent risk factor for CAL in children with KD. The area under receiver operating characteristic curve for the acute/subacute phase ratio of RV-PA coupling was 0.715 (95%CI: 0.624 - 0.825) to predict CAL in KD children ( P  < 0.05), with a sensitivity of 81.25% and a specificity of 62.57% at the optimal cutoff value of 0.839.

CONCLUSION

The acute/subacute phase ratio of RV-PA coupling was an independent risk factor for CAL in KD children.

Myocardial work is independent risk factor for coronary artery lesions in children with Kawasaki disease

BACKGROUND

The recognition ability of noninvasive echocardiographic myocardial work for coronary artery lesions (CAL) in children with Kawasaki disease (KD) has not been well characterized. This study aimed to determine whether impaired myocardial work is an independent risk factor for CAL in children with KD.

METHODS

Between December 2021 and April 2023, left ventricular (LV) myocardial work of 59 KD children was evaluated by myocardial work echocardiography, and their demographic, clinical and laboratory data were collected simultaneously. Multivariable logistic regression analysis was used to identify the independent risk factors for CAL.

RESULTS

Twenty-seven of 59 KD children had CAL according to the diagnostic criteria of echocardiography. There were significantly different heart rates, white blood cell count, LV ejection fraction, global work index (GWI), global work efficiency and global wasted work (GWW) between KD children with and without CAL ( P < 0.05). Multivariate logistic regression analysis identified that GWI [odds ratio (OR) = 0.985; P = 0.001], GWW (OR = 1.039; P = 0.019), erythrocyte sedimentation rate (ESR, OR = 1.051; P = 0.049) and C-reactive protein (CRP) (OR = 1.017; P = 0.044) were independent risk factors for CAL in children with KD. The area under receiver operating characteristic curve (AUC) of 0.847 for GWI was superior to that for GWW (AUC = 0.708), ESR (AUC = 0.645) and CRP (AUC = 0.626) to predict CAL in KD children ( P < 0.05). The optimal cutoff value of GWI was 1089 mmHg, with a sensitivity of 59.26% and a specificity of 96.87%.

CONCLUSION

GWI and GWW were independent risk factors for CAL in KD children with high discrimination ability.