タカダ タクマ   TAKADA Takuma
  髙田 卓磨
   所属   研究施設 研究施設
   職種   助教
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Renin-angiotensin system inhibitor exerts prognostic effects in HFpEF patients with low baseline chloride level.
掲載誌名 正式名:International journal of cardiology
略  称:Int J Cardiol
ISSNコード:18741754/01675273
掲載区分国外
巻・号・頁 373,pp.83-89
著者・共著者 SHIROTANI Shota†, JUJO Kentaro*, TAKADA Takuma, ABE Takuro, KISHIHARA Makoto, WATANABE Shonosuke, ENDO Nana, FUJITA Hiroko, MURASAKI Satoshi, YAMAGUCHI JUNICHI
発行年月 2023/02/15
概要 BACKGROUND:Few interventions have shown improved prognosis in patients with heart failure and preserved ejection fraction (HFpEF). Serum chloride levels, which are affected by serum renin secretion, are associated with the prognosis of HFpEF patients. However, the relationship between serum chloride levels and the effects of renin-angiotensin system inhibitors (RASi) in HFpEF patients remains unclear. We investigated whether the prognostic benefit of RASi depends on baseline serum chloride levels in HFpEF patients.METHODS:This observational study included 506 hospitalized patients with HFpEF (ejection fraction ≥50%) who were discharged. They were divided into two categories based on serum chloride levels at admission (cutoff level: 101 mEq/L) according to previous reports. In each chloride category, all-cause mortality, the primary endpoint, was compared between patients who received RASi and those who did not.RESULTS:Patients who received RASi had a significantly lower mortality rate after discharge than those who did not, but only in the lower chloride category (log-rank, P = 0.001). Multivariable Cox regression analysis confirmed the effect of risk reduction by RASi on all-cause mortality in the lower chloride category (adjusted hazard ratio: 0.31, 95% confidence interval: 0.11-0.84). The prognostic advantages of RASi were evident in the lower chloride category, but not in the higher chloride category, at admission (P for interaction = 0.027).CONCLUSION:RASi administration was associated with an improved prognosis only in HFpEF patients with a low baseline serum chloride level. Clinicians should consider RASi administration if patients' serum chloride levels are low, to improve the long-term prognosis of HFpEF patients.
DOI 10.1016/j.ijcard.2022.11.049
PMID 36455698