安川　久美
   Department   School of Medicine(Yachiyo Medical Center), School of Medicine
   Position   Associate Professor
Article types Original article
Language English
Peer review Peer reviewed
Title IgG levels in Kawasaki disease and its association with clinical outcomes.
Journal Formal name：Clinical rheumatology
Abbreviation：Clin Rheumatol
ISSN code：14349949/07703198
Domestic / ForeginForegin
Volume, Issue, Page 38(3),pp.749-754
Author and coauthor Yamazaki-Nakashimada Marco Antonio, Gámez-González Luisa Berenise, Murata Chiharu, Honda Takafumi, Yasukawa Kumi, Hamada Hiromichi
Publication date 2019/03
Summary Previous studies have suggested an association of IgG levels (before and after IVIG infusion) with clinical outcomes in Kawasaki disease. A retrospective analysis was performed that included 418 patients with KD admitted to Tokyo Women's Medical University Yachiyo Medical Center to evaluate pre- and post-IVIG IgG levels and its relation to outcomes. All patients received an initial IVIG infusion and aspirin; IgG levels were measured in 350 patients before IVIG (pre-IVIG IgG levels) and in 373 patients 48 h after starting IVIG infusion (post-IVIG IgG levels). Media and standard deviation of the pre- and post-IVIG IgG levels were reported and classified according to age. Also, IgG z-scores were calculated according to normal values of IgG by age. The number of cases and corresponding percentage of non-responders were reported by age and total patients. The association of pre-IVIG, post-IVIG IgG levels and post-IVIG IgG level/pre-IVIG IgG level ratio with no-response was evaluated by simple logistic regression model based on the IgG z-score, and regression coefficient, X2 value, p, and R2 of Nagelkerke were reported. Pre-IVIG and post-IVIG IgG levels presented an association with non-responders with statistical significance. This association was more evident between post-IVIG IgG levels and non-responders. Regarding coronary alterations, it was not possible to perform an adequate statistical analysis due the small number of patients. Pre- and post-IVIG infusion IgG levels could be an important biomarker in KD as well as in other inflammatory conditions. Higher IgG levels could be associated with a more effective immunomodulatory action and associated with better clinical outcomes.
DOI 10.1007/s10067-018-4339-0
PMID 30343342