Toshiaki Yamanaka1, Yusuke Kawai2, Toru Miyoshi3, Tsutomu Mima4, Kenji Takagaki4, Saori Tsukuda2, Yukio Kazatani2, Kazufumi Nakamura1, Hiroshi Ito1. 1. Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama 700-8558, Japan. 2. Department of Cardiovascular Medicine, Ehime Prefectural Central Hospital, Matsuyama, Japan. 3. Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama 700-8558, Japan. Electronic address: miyoshit@cc.okayama-u.ac.jp. 4. Department of Cardiovascular Medicine, Saiseikai Imabari Hospital, Imabari, Japan.
Abstract
BACKGROUND: Contrast medium-induced acute kidney injury (CI-AKI) is a cardiovascular complication after myocardial infarction treated with emergency percutaneous coronary intervention. The aim of this randomized, sham-controlled trial was to evaluate the impact of remote ischemic preconditioning (RIPC) on CI-AKI in patients with ST-elevation myocardial infarction who received emergency primary percutaneous coronary intervention. METHODS AND RESULTS:Patients with a suspected ST-elevation myocardial infarction were randomly assigned at a 1:1 ratio to receive percutaneous coronary intervention either with (n=63) or without (n=62) RIPC (intermittent arm ischemia through three cycles of 5min of inflation and 5min of deflation of a blood pressure cuff). A total of 47 RIPC patients and 47 control patients met all study criteria. The primary endpoint was the incidence of CI-AKI, which was defined as an increase in serum creatinine >0.5mg/dL or >25% over the baseline value 48-72h after administration of contrast medium. The incidence of CI-AKI was 10% (n=5) in the RIPC group and 36% (n=17) in the control group (p=0.003). The odds ratio of CI-AKI in patients who received RIPC was 0.18 (95% confidence interval: 0.05-0.64; p=0.008). CONCLUSIONS: In patients with ST-elevation myocardial infarction, RIPC before percutaneous coronary intervention reduced the incidence of CI-AKI.
RCT Entities:
BACKGROUND: Contrast medium-induced acute kidney injury (CI-AKI) is a cardiovascular complication after myocardial infarction treated with emergency percutaneous coronary intervention. The aim of this randomized, sham-controlled trial was to evaluate the impact of remote ischemic preconditioning (RIPC) on CI-AKI in patients with ST-elevation myocardial infarction who received emergency primary percutaneous coronary intervention. METHODS AND RESULTS:Patients with a suspected ST-elevation myocardial infarction were randomly assigned at a 1:1 ratio to receive percutaneous coronary intervention either with (n=63) or without (n=62) RIPC (intermittent arm ischemia through three cycles of 5min of inflation and 5min of deflation of a blood pressure cuff). A total of 47 RIPCpatients and 47 control patients met all study criteria. The primary endpoint was the incidence of CI-AKI, which was defined as an increase in serum creatinine >0.5mg/dL or >25% over the baseline value 48-72h after administration of contrast medium. The incidence of CI-AKI was 10% (n=5) in the RIPC group and 36% (n=17) in the control group (p=0.003). The odds ratio of CI-AKI in patients who received RIPC was 0.18 (95% confidence interval: 0.05-0.64; p=0.008). CONCLUSIONS: In patients with ST-elevation myocardial infarction, RIPC before percutaneous coronary intervention reduced the incidence of CI-AKI.
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