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Thrombospondin-2 predicts response to treatment with intravenous immunoglobulin in children with Kawasaki disease.


ABSTRACT: Objective:To investigate the predictive value of thrombospondin-2 (TSP-2) in assessing the response to intravenous immunoglobulin (IVIG) in children with acute Kawasaki disease (KD). Methods:This was a cohort study with controls. 71 children with KD were recruited as the case group, including IVIG non-responder (n=17) and IVIG responder (n=54), and healthy children (n=27) and febrile children (n=30) were used as control groups. ELISA was used to measure plasma TSP-2 and TSP-1 levels. The rank-sum test was used to compare groups of non-normally distributed data. Predictive value was evaluated through the receiver operating characteristic (ROC) curve. Results:Compared with the control groups, the plasma TSP-2 levels in acute KD were significantly elevated (TSP-2: 31.00 (24.02, 39.28) vs 21.93 (17.00, 24.73) vs 16.23 (14.00, 19.64) ng/mL, P<0.001). The plasma TSP-2 level in the IVIG non-responder was significantly higher than the responder group (37.58 (31.86, 43.98) vs 27.84 (21.88, 33.48) ng/mL, P=0.002). When using an ROC curve to analyse the predictive effect of TSP-2 on non-responsiveness to IVIG treatment, the area under the curve was 0.752 (0.630, 0.875) (P=0.002). When the cut-off value for TSP-2 was 31.50 ng/mL, the sensitivity was 82.35%, the specificity was 64.81%. Conclusion:The plasma TSP-2 level was elevated in acute KD and it might be a novel predictor for IVIG resistance, which could help guide clinicians to choose individualised initial therapeutic regimens.

SUBMITTER: Yang S 

PROVIDER: S-EPMC5842996 | biostudies-literature |

REPOSITORIES: biostudies-literature

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