Remote Ischemic Postconditioning
Conditions
Keywords
Remote Ischemic Postconditioning, Peripheral Immunity
Brief summary
Influence of bilateral arm ischemic postconditioning （BAIPC）on the injury and protective blood markers and the clinical prognosis and outcome in patients with acute ischemic stroke
Detailed description
In this study, we explore the influence of bilateral arm ischemic postconditioning (BAIPC) to patients with anterior circulation acute ischemic stroke. Patients with anterior circulation acute ischemic stroke are enrolled and divided into control group and experimental group. Patients in experimental group are administrated with BAIPC within 3 days from the occurrence of stroke. The National Institute of Health stroke scale (NIHSS) will be evaluated at different time point to analyze the influence of BAIPC to acute ischemic patients. The level of IL-4, IL-6，TNF-α as well as the frequency of different sub-populations T cells in the blood at different time point will be detected to explore the possible mechanism of BAIPC protective function.
Interventions
BAIPC is admistrated by 5 cycles extremities ischemia (5-minute blood-pressure cuff inflation up to 50 mmHg higher than baseline, followed by 5-minute cuff deflation) for one week.
PROCEDUREIntravenous blood collection
Nurses will collect 5 ml intravenous blood with anticoagulant and 5ml total blood at 0d, 1d and 7-10d respectively. The blood samples will be stored for laboratory assay. The blood samples only use in this trial.
Sponsors
The First Hospital of Jilin University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)
Masking description
Patients without BAIPC are admistrated by 5 cycles extremities ischemia (5-minute blood-pressure cuff inflation using pressure 0 mmHg , followed by 5-minute cuff deflation). All subjects will take BAIPC for 1 week using 'Remote Ischemic Conditioning Equipment' .
Intervention model description
BAIPC group patients are admistrated by 5 cycles extremities ischemia (5-minute blood-pressure cuff inflation up to 50 mmHg higher than baseline, followed by 5-minute cuff deflation).
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
1. Patients with ischemic cerebral stroke within 72 hours, NIHSS score between 4 to 15 points; 2. Age between 18-80 years ,gender not limited; 3. freely given informed consent.
Exclusion criteria
1. Patients with progressive neurological disease or patients that cannot survive more than 1 year 2. Patients suspected intracranial artery dissection, moyamoya disease, any known vascular inflammatory disease, radioactive vascular lesions, fibromuscular dysplasia, sickle cell disease, tumor, reversible cerebral vascular contraction and reversible posterior leukoencephalopathy syndrome 3. Patients with Cardioembolism , such as rheumatic mitral or aortic stenosis, artificial heart valve, sick sinus syndrome, left atrial myxoma, left ventricular mural thrombus or valvular vegetations, congestive heart failure, bacterial endocarditis 4. Patients with uncontrollable severe hypertension (after drug treatment, systolic blood pressure \> 180 mmHg or diastolic blood pressure \> 110 mmHg) Patients with subclavian artery stenosis 50% or higher or subclavian artery steal blood syndrome and upper limb arterial occlusion 5. Patients with serum Aspertate aminotransferase or Alanine transaminase concentration 3 times higher than normal ceiling Patients that Creatinine clearance \< 0.6 ml/s or serum creatinine \>265 umol/l (\> 3.0 mg/dl) 6. Patients once with intracranial tumors or brain aneurysm, arteriovenous malformation 7. Patients with intracranial bleeding occurred within 90 days (parenchymal hemorrhage, subarachnoid hemorrhage, subdural out/epidural blood), retinal hemorrhage or visceral bleeding occurred within 30 days. 8. Patients with severe blood system disease or severe blood coagulation disfunction , platelet \< 100 x 109 / L; 9. Patients that received major surgery 30 days before or is expected to wthin 12 months (including femoral artery, heart, the aorta or the carotid surgery); 10. Patients whose Target lesion blood vessel had received a stent implantation, angioplasty or other medical treatment, or is expected to above treatments witnin 12 months ; 11. Patients with BAIPC contraindications, e.g. severe soft tissue injuries, such as the upper extremity fractures or blood vessels lesions.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes of pheripheral serum cytokines | 0d, 1d and 7-10d | We evaluate the changes of the concentration of serum cytokine (IL-4, IL-6, TNF, et.al) at 0d, 1d, 7-10d respectively to demonstrate whether acute stroke would depress the immune state of patients and wether BAIPC can influence the immune state of patients suffering acute stroke. |
| Changes of pheripheral immune cells | 0d, 1d and 7-10d | We evaluate the frequency of pheripheral immune cells (Th1, Th2, Th17 and Treg cells) at 0d, 1d and 7-10d to demonstrate whether acute stroke would depress the immune state of patients and wether BAIPC can influence the immune state of patients suffering acute stroke. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes of National Institute of Health Stroke scale (NIHSS) | Before BAIPC and after BAIPC for one week | We evaluate patients NIHSS before BAIPC and after BAIPC for one week to see wether BAIPC could improve the short term prognosis of patient.Scoring Definitions include level of consciousness, visual field, facial palsy,limb motor,sensory ,language,and dysarthria .The NIHSS captures both motor and non-motor impairments of stroke, and provides a good overview of people's deficits.NIHSS ranges from 0 to 42, with high scores corresponding to increased severity of stroke with worse prognosis. |
| Relapse of ischemic stroke | one year after patients' first stroke | We observe the relapse of ischemic stroke after one yearto see wether BAIPC could improve the long term prognosis of patient. |
Countries
China
Contacts
Primary ContactJiachun Feng, MD,Phd
Backup ContactDi Ma
Outcome results
None listed