Two-dimensional speckle tracking imaging in predicting myocardial injury of Kawasaki disease patients with intravenous immunoglobulin resistant during acute phase
10.13929/j.1003-3289.201708025
- VernacularTitle:二维斑点追踪技术预测静脉注射免疫球蛋白抵抗急性期川崎病患者心肌损伤
- Author:
Haiyong WANG
1
;
Xiaoyan FU
;
Tingting WU
;
Minghui TONG
;
Ailin CUI
;
Qianqian LI
Author Information
1. 兰州大学第二医院儿童医院超声科
- Keywords:
Speckle tracking imaging;
Mucocutaneous lymph node syndrome;
Genes,immunoglobulin;
Myocardial contraction
- From:
Chinese Journal of Medical Imaging Technology
2018;34(3):345-349
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the characteristics of left ventricular systolic function in Kawasaki disease (KD) patients with intravenous immunoglobulin (IVIG) resistant during acute phase by two-dimensional speckle tracking imaging (2D STI).Methods IVIG resistant patients (n=40) as well as age and gender matched IVIG responder patients (n=40) were selected from KD patients in acute phase.Patients in IVIG resistant group were further divided into coronary artery dilation (CAD) subgroup and no coronary artery dilation (NCAD) subgroup.Then conventional echocardiography,2D STI and laboratory indexes were acquired and compared between IVIG resistant group and IVIG responder group,as well as between CAD and NCAD subgroup.ROC curve analysis was used to determine threshold values of 2D STI measurements associated with IVIG resistance.Results Compared with IVIG responder group,coronary artery dilation,left ventricular mass and left ventricular mass index increased,systolic global longitudinal strain (GLS) and systolic global circumferential strain (GCS) decreased,albumin,erythrocyte sedimentation rate,C-reactive protein and platelet increased in IVIG resistant group (all P＜0.05).Taking absolute GLS 16.8％ as a threshold,the area under curve (AUC) was 0.769 (P=0.021),sensitivity,specificity in diagnosis of IVIG resistant was 79.27％,68.36％.Taking absolute GCS 15.9％ as a threshold,AUC was 0.749 (P=0.038),sensitivity,specificity in diagnosis of IVIG resistant was 71.43％,57.28％.Conclusion IVIG resistant KD patients present significantly greater systolic dysfunction compared with responders in patients with KD,which may be the results of myocardium infection other than coronary artery lesions.2D STI may predict myocardial injury in IVIG resistant KD patients.
