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Combined Intrahospital Remote Ischemic Perconditioning and Postconditioning Improves Clinical Outcome in ST-Elevation Myocardial Infarction.

Abstract：

RATIONALE:Remote ischemic conditioning (RIC) or ischemic postconditioning (PostC) may protect the myocardium from ischemia-reperfusion injury in patients with ST-segment-elevation myocardial infarction. OBJECTIVE:To determine whether combined intrahospital RIC and PostC or PostC alone in addition to primary percutaneous coronary intervention (PCI) reduce long-term clinical events after ST-segment-elevation myocardial infarction. METHODS AND RESULTS:The present study is a post hoc analysis of a prospective trial which randomized 696 ST-segment-elevation myocardial infarction patients with symptoms <12 hours 1:1:1 to either combined RIC and PostC in addition to primary PCI, PostC alone in addition to primary PCI, or conventional PCI (control). Three cycles of RIC were performed by inflation of an upper arm blood pressure cuff for 5 minutes followed by deflation for 5 minutes. PostC was performed after primary PCI via 4 cycles of 30 seconds balloon occlusions followed by 30 seconds of reperfusion. Major adverse cardiac events consisting of cardiac death, reinfarction, and new congestive heart failure were assessed during long-term follow-up. Follow-up data were obtained in 97% of patients in median 3.6 years after the index event (interquartile range, 2.9-4.2 years). Major adverse cardiac events occurred in 10.2% of patients in the combined RIC and PostC group and in 16.9% in the control group (odds ratio, 0.56; 95% CI, 0.32-0.97; P=0.04). The difference was driven by a significantly reduced rate of new congestive heart failure in the RIC and PostC group (2.7% versus 7.8%; odds ratio, 0.32; 95% CI, 0.13-0.84; P=0.02). In contrast, PostC alone did not reduce major adverse cardiac events compared with controls (14.1% versus 16.9%; odds ratio, 0.81; 95% CI, 0.48-1.35; P=0.41), and the reduction of new congestive heart failure was not statistically significant (3.5% versus 7.8%; odds ratio, 0.43; 95% CI, 0.18-1.03; P=0.05). CONCLUSIONS:Cardioprotection by combined intrahospital RIC and PostC in addition to primary PCI significantly reduced the rate of major adverse cardiac events and new congestive heart failure after ST-segment-elevation myocardial infarction. CLINICAL TRIAL REGISTRATION:URL: http://www.clinicaltrials.gov . Unique identifier: NCT02158468.

journal_name

Circ Res

journal_title

Circulation research

authors

Stiermaier T,Jensen JO,Rommel KP,de Waha-Thiele S,Fuernau G,Desch S,Thiele H,Eitel I

doi

10.1161/CIRCRESAHA.118.314500

subject

Has Abstract

pub_date

2019-05-10 00:00:00

pages

1482-1491

issue

eissn

0009-7330

issn

1524-4571

journal_volume

124

pub_type

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Combined Intrahospital Remote Ischemic Perconditioning and Postconditioning Improves Clinical Outcome in ST-Elevation Myocardial Infarction.