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Clinical Trial Summary

This study evaluates the addition of remote ischemic preconditioning and postconditioning to standard myocardial protection protocol in patients submitted to off - pump coronary artery bypass grafting in a prospective, 1:1 randomized, double blind fashion. An interventional group will receive remote ischemic preconditioning 24-hours before OP-CABG, immediately before surgery and within 60 minutes following surgery by means of lower limb ischemia achieved by pressure cuff inflation, whereas control group will receive sham procedure perioperatively.


Clinical Trial Description

In a prospective, 1:1 randomized and double blind fashion, the study will evaluate the impact of remote ischemic preconditioning, both immediate and second window of protection (24 hours and immediately before surgery) with remote ischemic postconditiong on operative outcomes in patients submitted to coronary artery bypass grafting without use of extracorporeal circulation.

Remote ischemic conditioning was found to provide protection against necrosis and apoptosis due to ischemia and reperfusion injury, a phenomenon observed during coronary artery bypass grafting. That in turn was associated with poor postoperative outcomes, predominantly poor survival.

Remote ischemic preconditioning will be provided by repeated lower leg ischemia and reperfusion with pressure cuff inflation for five minutes and deflation for five minutes in three consecutive cycles. Remote ischemic preconditioning will be performed 24 hours before CABG and immediately before surgery. Remote ischemic postconditioning will be performed within 60 minutes following the last coronary artery bypass graft completion and the restoration of coronary blood flow.

The study will assess clinical endpoints such as postoperative acute myocardial infarction (type 5 MI), postoperative mortality, postoperative renal failure and laboratory outcomes such as postoperative serial measurements of troponin T release or glomerular filtration rate as secondary outcomes. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03363958
Study type Interventional
Source Medinet Heart Centre
Contact Jakub S. Marczak, M.D.
Phone 0048883774566
Email marczak@space.pl
Status Recruiting
Phase Phase 2
Start date January 1, 2014
Completion date January 1, 2020

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