The purpose of the study was to verify the myocardial protective effect of RIPC in patients undergoing OPCABG.
66 patients scheduled for OPCABG are randomly assigned to a RIPC group(n=33) or a control group(n=33). In the RIPC group, 4 cycles of 5-min ischemia(using a blood pressure cuff inflated to 40mmHg over the patient's basic blood pressure) and 5-min repercussion are done on an upper limb before skin incision. Patients in the control group wear the same cuff on an upper limb but no pressure is applied. Anesthetic and surgical techniques are standardized during the trial. Serum inflammatory cytokines and cardiac injury markers will be measured before and after surgery. Internal mammary artery and saphenous vein tissues will be collected during the surgery to assess hypoxia-inducible factor (Hif)-1a and other signalling proteins.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
66
4 cycles of 5-min ischemia(using a blood pressure cuff inflated to 40mmHg over the patient's basic blood pressure) and 5-min repercussion are done on an upper limb before skin incision.
Huilin Wang
Shanghai, Shanghai Municipality, China
RECRUITINGICU staying time
the time patients spend in ICU after surgery
Time frame: average of 1 year
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