Protective Effects of Remote Limb Ischemic Preconditioning on Acute Cerebral Infarction

Capital Medical University80 enrolled

Overview

Stroke is one of the three leading causes of human death, and a major cause of adult disability. Our pre-clinical studies confirmed that ischemic preconditioning can prevent cerebral infarction. Animal studies confirmed that ischemic postconditioning can reduce infarct size of cerebral infarction. Investigators hypothesized that postconditioning would reduce infarct volume of ischemic stroke patients.

This study explored the neuroprotective effects of post-positioning on ischemic stroke patients with randomized, double-blinded and controlled method. Patients are divided into experimental and placebo groups to receive remote ischemic post-conditioning for 30 days. Remote ischemic post-conditioning is performed by the inflating tourniquets to certain extents on bilateral arms with 5 cycles of 5min inflation and 5min relax alternation for the total of 30 consecutive days. It is 200mmHg for RIPC group and 60mmHg for control group. Evaluation parameters include CRP, TNF-α, ICAM-1 and GFAP in blood at 0, 3, 7, 15 and 30 days after treatment; and MRI at 0 and 30 days after treatment.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Stroke

Interventions

RIPC groupDEVICE

Control groupDEVICE

Eligibility

Sex: ALLMin age: 40 YearsMax age: 80 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. age between 40 to 80 Years 2. Ischemic cerebrovascular disease within 6 hours 3. National Institutes of Health Stroke Scale(NIHSS) score 0-15,and Modified Rankin Scale(mRS) score 0-4 4. Cranial CT to rule out the the cerebral hemorrhage 5. Written informed consent was Exclusion Criteria: 1. Cerebral hemorrhage 2. Other parts of the active bleeding disease 3. Atrial fibrillation 4. Moyamoya disease or vasculitis 5. Hereditary disease, such as with CADASIL, FABRY, mitochondrial myopathy 6. Out coagulation disorder 7. Severe lesions of severe liver and kidney disease, malignancy or other systemic 8. Cannot tolerate BLIPC or without informed consent

Outcomes

Primary Outcomes

Local tissue damage 30 days after RIPC treatment

Evaluated by the doctor blinded to the study protocol, including: local edema, redness, skin breakage

Time frame: 30 days after RIPC treatment

Levels of plasma biomarkers assay right before RIPC treatment