トリイ　ノブユキ   TORII Nobuyuki   鳥居　信之    所属   医学部 医学科（附属成人医学センター）    職種   准教授
論文種別	原著
言語種別	英語
査読の有無	査読なし
表題	The Outcome of Cirrhotic Patients with Ascites Is Improved by the Normalization of the Serum Sodium Level by Tolvaptan.
掲載誌名	正式名：Internal medicine (Tokyo, Japan) 略　 称：Intern Med ISSNコード：(1349-7235)0918-2918(Linking)
掲載区分	国内
巻・号・頁	56(22),pp.2993-3001
著者・共著者	KOGISO Tomomi†*, KOBAYASHI Mutsuki, YAMAMOTO Kuniko, IKARASHI Yuichi, KODAMA Kazuhisa, TANIAI Makiko, TORII Nobuyuki, HASHIMOTO Etsuko, TOKUSHIGE Katsutoshi*
発行年月	2017/11
概要	Objective Hyponatremia is frequently observed in patients with decompensated liver cirrhosis and it is also related to a poor prognosis. The vasopressin V2-receptor antagonist tolvaptan is used to treat cirrhotic patients with ascites and increases the serum sodium (Na) level. In this study, we investigated (i) whether or not correction of the Na level improves the prognosis of cirrhotic patients with ascites and (ii) predictors of normalization of the serum Na level after tolvaptan therapy. Methods This was a single-center retrospective study. A total of 95 Japanese cirrhotic patients (60 men, median age 63 years) were enrolled and received tolvaptan orally after hospitalization for ascites treatment. The serum Na level was monitored during the period of tolvaptan treatment. The laboratory data and survival rates of patients who achieved serum Na levels of <135 and ≥135 mEq/L after 1 week were compared. Results Patients showed serum Na levels of 136 (121-145) mEq/L, and 42.1% had a serum Na level of <135 mEq/L. Among patients with an initial serum Na level <135 mEq/L, 60.0% achieved a normal level after 1 week, and the survival rate was significantly higher in patients with a normalized serum Na level (p<0.01). The pretreatment brain natriuretic peptide (BNP) level was predictive of achieving a serum Na level of ≥135 mEq/L (odds ratio: 0.87, 95% confidence interval: 0.316-0.987, p<0.05). Conclusion Normalization of the Na level after one week was associated with a favorable outcome of tolvaptan therapy, and Na correction improved the prognosis.
DOI	10.2169/internalmedicine.9033-17
PMID	28943585