シミズ　キヨウコ   SHIMIZU Kyoko   清水　京子    所属   その他 その他    職種   非常勤嘱託
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Relative Rise of Serum IgG4 Levels After Steroid Therapy for Autoimmune Pancreatitis Predicts the Likelihood of Relapse.
掲載誌名	正式名：Pancreas 略　 称：Pancreas ISSNコード：15364828/08853177
掲載区分	国外
巻・号・頁	47(4),pp.412-417
著者・共著者	Suzuki Daisuke, Shimizu Kyoko, Tokushige Katsutoshi
担当区分	責任著者
発行年月	2018/04
概要	OBJECTIVES:Serum IgG4 level is a useful diagnostic marker of autoimmune pancreatitis (AIP); however, it is difficult to predict relapse. We investigated whether a change in serum IgG4 is predictive of AIP relapse during maintenance therapy.METHODS:Seventy-three patients with AIP treated with steroids were divided into 3 groups according to their initial serum IgG4 levels: level 1 group (>2-fold upper limit), level 2 group (1- to 2-fold upper limit), and a normal group. The relapse rate and the prevalence of extrapancreatic lesions were compared between the 3 groups. The correlation between the relative rise of serum IgG4 levels and relapse during maintenance therapy was analyzed.RESULTS:There were no differences in serum IgG4 levels in the presence or absence of relapse. The average number of extrapancreatic lesions was 1.02, 0.47, and 0.27 in level 1, level 2, and the normal group, respectively. The relative rise of serum IgG4 levels after steroid therapy was significantly higher in relapse than in nonrelapse cases. The area under the receiver operating characteristic curve of the relative rise of IgG4 levels for discriminating between the relapse and the nonrelapse cases was 0.85.CONCLUSIONS:The relative rise of serum IgG4 levels after steroid therapy may provide an indication of relapse.
DOI	10.1097/MPA.0000000000001007
PMID	29517627