Can Remote Ischaemic Preconditioning Reduce Contrast Induced Nephropathy in Patients Receiving Contrast for Computed Tomography?

The intervention is 4 cycles of upper limb ischaemic preconditioning. Each cycle consists of 5 minutes of blood pressure cuff induced ischaemia with 3 minutes of reperfusion. The ischaemic stimulus is induced by inflation of the cuff to 15mmHg above systolic pressure. The reperfusion stimulus is induced by cuff deflation. The RIPC stimulus is commenced at between 30-40 minutes prior to the administration of the IV contrast.