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Effects of remote ischemic preconditioning in patients with concentric myocardial hypertrophy: A randomized, controlled trial with molecular insights

Authors
 Young Song  ;  Jong Wook Song  ;  Sak Lee  ;  Ji-Hae Jun  ;  Young-Lan Kwak  ;  Jae-Kwang Shim 
Citation
 International Journal of Cardiology, Vol.249 : 36-41, 2017 
Journal Title
 International Journal of Cardiology 
ISSN
 0167-5273 
Issue Date
2017
Keywords
Cardiac enzyme ; Cardiac surgery ; Intracellular signaling ; Left ventricular hypertrophy ; Remote ischemic preconditioning
Abstract
BACKGROUND: Efficacy of remote ischemic preconditioning (RIPC) for cardioprotection in cardiac surgery is controversial. We aimed to evaluate the clinical and molecular effects of RIPC on the concentrically hypertrophied myocardium. METHODS: Seventy-two aortic stenosis patients receiving aortic valve replacement (AVR) under sevoflurane anesthesia were randomly allocated to RIPC (3cycles of 5-min inflation [300mmHg] and deflation on the left arm) or control (deflated cuff placement) group. The primary endpoints were 24-h area under the curve (AUC) for serum creatine kinase (CK)-MB and troponin (Tn)-T levels. The secondary endpoints were myocardial activation of cell signaling pathways, including reperfusion injury salvage kinases (RISK), signal transducer and activator of transcription (STAT), nitric oxide synthase (NOS), and apoptosis related molecules, obtained from right atrial tissue before and after cardiopulmonary bypass (CPB). RESULTS: There were no intergroup differences in 24-h AUCs of CK-MB and Tn-T. Phosphorylations of RISK pathway molecules were not enhanced by RIPC before and after CPB. Phosphorylation of STAT5 was significantly lower in the RIPC group before and after CPB. Phosphorylations of STAT3 and endothelial NOS were not enhanced by RIPC before and after CPB. Expression level of cleaved caspases-3/caspase-3 was significantly higher in the RIPC group before CPB. CONCLUSIONS: RIPC did not provide clinical benefits or activate protective signaling in patients with concentric left ventricular hypertrophy undergoing AVR.
Full Text
https://www.sciencedirect.com/science/article/pii/S0167527317316078
DOI
10.1016/j.ijcard.2017.08.073
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
곽영란(Kwak, Young Lan) ORCID logo https://orcid.org/0000-0002-2984-9927
송영(Song, Young) ORCID logo https://orcid.org/0000-0003-4597-387X
송종욱(Song, Jong Wook) ORCID logo https://orcid.org/0000-0001-7518-2070
심재광(Shim, Jae Kwang) ORCID logo https://orcid.org/0000-0001-9093-9692
이삭(Lee, Sak) ORCID logo https://orcid.org/0000-0001-6130-2342
전지혜(Jun, Ji Hae) ORCID logo https://orcid.org/0000-0002-8080-0715
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/161347
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