Remote Ischemic Preconditioning as a Method Against Subclinical Renal Injury and Contrast-induced Nephropathy
Atherosclerosis, Stable Angina, Peripheral Artery Disease
About this trial
This is an interventional prevention trial for Atherosclerosis focused on measuring Remote ischemic preconditioning, Contrast-induced Nephropathy, Stable coronary artery disease, Lower extremity arterial disease, Low molecular weight metabolites, Functional properties of arteries
Eligibility Criteria
Inclusion Criteria:
- Age greater than 18 years, no upper age limit
- Patients with stable coronary artery disease (II - III class according to the Canadian Cardiovascular Society) hospitalized for coronarography or with lower extremity arterial disease hospitalized for angiography
- Written informed consent
Exclusion Criteria:
- Pregnancy
- Age less than 18 years
- eGFR < 30 ml/min/1,73 m2
- Simultaneous participation in an other clinical trial
- Coexisting pathology of the upper-limbs limiting the use of the cuff (bilateral amputee, recent trauma, chronic ulcers, significant upper limb peripheral atherosclerosis (radial pulse not palpable on either side))
- Malignant tumor (in remission less than 5 years or ongoing treatment)
- Documented allergic reaction to iodinated contrast agent
- Acute infection (body temperature 38 degrees Celsius or higher, c reactive protein 50mg/L or higher)
- Cardiac rhythm abnormalities (atrial fibrillation, frequent supraventricular premature complexes)
- Documented myocardial infarction within 30 days
- Inability to understand the instructions of the study
- Vascular surgery in axillary region
- Unable to lie supine for 40 minutes
- Home oxygen treatment
- Documented upper limb deep vein thrombosis
Sites / Locations
- Tartu University Hospital
Arms of the Study
Arm 1
Arm 2
Experimental
Sham Comparator
Remote ischemic preconditioning
SHAM remote ischemic preconditioning
Remote Ischemic Preconditioning (RIPC) is performed by inflating blood pressure cuff for 5-minutes at 200 mmHg, or if patients systolic blood pressure is higher than 200 mmHg 20 mmHg above systolic pressure, alternated with 5-minute deflation for 4 times.
SHAM Remote Ischemic Preconditioning (RIPC-SHAM) is accomplished by alternating 4 cycles of 5-minute inflation with 5-minute deflation. Blood pressure cuff will be inflated to 10-20 mmHg. RIPC-SHAM is performed with standard blood pressure cuff on upper-arm.