The purpose of this study was to investigate whether lower limb ischaemic preconditioning can improve renal function in patients undergoing living donor kidney transplantation
Ischemia reperfusion injury (IRI) induced renal failure after kidney transplantation is a common clinical problem associated with a high morbidity and mortality. To reduce the adverse effects of IRI after organ transplantation various strategies aimed at the different pathophysiological processes of IRI have been investigated. Remote ischemic preconditioning (RIPC) is one such strategy where brief IRI of one organ protects other organs from sustained IRI. Many studies have shown that RIPC protects heart, muscle flaps, stomach, liver, lungs, and kidneys from IRI. RIPC of the limb with a tourniquet is a safe and convenient method of preconditioning organs against IRI. However, the efficacy of RIPC in patients undergoing living donor kidney transplantation need to be established and mechanism of early and late RIPC, such as whether the donor should undergo remote preconditioning or the recipient, need to be investigated.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
120
Remote ischaemic preconditioning consisted of three 5-min cycles of left lower limb ischaemia, which was induced by an automated cuff-inflator placed on the left lower limb and inflated to 300 mm Hg, with an intervening 5 min of reperfusion during which the cuff was deflated.
Department of Anaesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology
Wuhan, Hubei, China
Plasma Creatine Concentration of the Recipients
Plasma creatinine concentration before surgery, 1hour, 4hours, 24hours, 48hours and 72hours after the artery unclamping
Time frame: within the first 3days after the operation
Urinary Output of the Recipients Postoperatively
Accumulated urinary output 1hour, 4hours and 24hours after the artery unclamping and the urinary output on the 2nd and 3rd day after the operation
Time frame: within the first 3days after the operation
Plasma Concentration of NGAL in the Recipients
Plasma concentration of neutrophil gelatinase-associated lipocalin (NGAL) before the operation and 24hours after the artery unclamping
Time frame: within the first 24hours after the operation
Acute Rejection of Transplanted Kidney
biopsy-confirmed, clinically symptomatic
Time frame: before discharge
Delayed Graft Function
Delayed Graft Function according to the clinical symptoms
Time frame: before discharge
Length of Postoperative Hospital Stay
time from the day of operation to the day of discharge for the recipients
Time frame: before discharge
Total Costs During the Hospitalization
Total costs from the admission to the discharge of the recipients
Time frame: from the admission to the discharge of the patients
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Urine Concentration of NAG Preoperatively in Recipients
Urine concentration of N-acetyl-D-glucosaminidase (NAG) before the operation
Time frame: before operation
Urine Concentration of NAG Postoperatively in Recipients
Urine concentration of N-acetyl-D-glucosaminidase (NAG) 1hour, 4hours and 24hours after the artery unclamping in the recipients
Time frame: within the first 24hours after the artery unclamping
Urine Concentration of RBP Preoperatively in the Recipients
Urine concentration of retinol binding protein (RBP) before the operation in the recipients
Time frame: before the operation
Urine Concentration of RBP Postoperatively in the Recipients
Urine concentration of retinol binding protein (RBP) 1hour, 4hours and 24hours after the artery unclamping in the recipients
Time frame: within the first 24hours after the artery unclamping
Plasma Concentration of SOD in the Recipients
Plasma concentration of superoxide dismutase (SOD) before the operation, 1hour, 4hours and 24hours after the artery unclamping in the recipients
Time frame: within 24hours after the operation
Plasma Concentration of MDA in the Recipients
Plasma concentration of malondialdehyde (MDA) before the operation, 1hour, 4hours and 24hours after the artery unclamping in the recipients
Time frame: within the first 24hours after the operation