タカギ　トシオ   Takagi Toshio   高木　敏男    所属   医学部 医学科（東京女子医科大学病院）    職種   教授・基幹分野長
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Sarcopenia predicts survival outcomes among patients with urothelial carcinoma of the upper urinary tract undergoing radical nephroureterectomy: a retrospective multi-institution study.
掲載誌名	正式名：International journal of clinical oncology 略　 称：Int J Clin Oncol ISSNコード：14377772/13419625
掲載区分	国外
巻・号・頁	22(1),pp.136-144
著者・共著者	ISHIHARA Hiroki, KONDO Tsunenori*, OMAE Kenji, TAKAGI Toshio, IIZUKA Jumpei, KOBAYASHI Hirohito, HASHIMOTO Yasunobu, TANABE Kazunari
発行年月	2017/02
概要	BACKGROUND:We aimed to evaluate the effect of sarcopenia, a condition of low muscle mass, on the survival among patients who were undergoing radical nephroureterectomy (RNU) for urothelial carcinoma of the upper urinary tract (UCUT).METHODS:We retrospectively reviewed consecutive patients with UCUT (cT[any]N0M0) who underwent RNU between 2003 and 2013 at our department and its affiliated institutions. Preoperative computed tomography images were used to calculate each patient's skeletal muscle index, an indicator of whole-body muscle mass. Sarcopenia was defined according to the sex-specific consensus definitions, based on the patient's skeletal muscle and body mass indexes. We analyzed the relapse-free survival (RFS), cancer-specific survival (CSS), and overall survival (OS) after RNU to identify factors that predicted patient survival.RESULTS:A total of 137 patients were included, and 90 patients (65.7 %) were diagnosed with sarcopenia. Compared to the non-sarcopenic patients, the sarcopenic patients had a significant inferior 5-year RFS (48.8 vs. 79.6 %, p = 0.0002), CSS (57.1 vs. 92.6 %, p < 0.0001), and OS (48.2 vs. 90.6 %, p < 0.0001). Multivariate analyses revealed that sarcopenia was an independent predictor of shorter RFS, CSS, and OS (all, p < 0.0001).CONCLUSIONS:Sarcopenia was an independent predictor of survival among patients with UCUT who were undergoing RNU.
DOI	10.1007/s10147-016-1021-x
PMID	27422388