Stent Implantation Versus Balloon Dilation for Acute Anterior Circulation Tandem Occlusion
NCT ID: NCT05902000
Last Updated: 2023-06-28
Study Results
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Basic Information
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RECRUITING
NA
222 participants
INTERVENTIONAL
2023-06-14
2025-12-31
Brief Summary
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2. To evaluate whether stent implantation on the ipsilateral extracranial segment, after intracranial thrombectomy successful recanalization compared with balloon angioplasty (eTICI≥2b\_50) for acute anterior circulation tandem lesions within 24h of onset, can increase the risk of symptomatic intracranial hemorrhage.
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Detailed Description
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Subjects were randomized 1:1 according to inclusion and exclusion criteria into a trial group (acute phase extracranial vascular stent implantation group) and a control group (acute phase non-extracranial vascular stent implantation group). Randomization was performed for 90d and 180d for the follow-up to collect primary and secondary efficacy and safety indicators.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Thrombectomy + Carotid Stenting
After emergency admission,intravenous thrombolysis will be administered if possible. Standard endovascular thrombectomy (EMT) and balloon angioplasty will be performed. The method of EMT and the order of endovascular treatment were selected by each center. After EMT and balloon angioplasty, patients with eTICI≥2b\_50 were maintained for more than 10 minutes for randomization. In the intervention arm, emergent carotid stenting will be performed. Standardized treatment with antiplatelet and other drugs will be given. A loading dose of antiplatelet agents (aspirin 300 mg and clopidogrel 300 mg) or Tirofiban was given as an intraoperative drug treatment to endovascular therapy prior to emergency balloon dilation or stenting. Intravenous sedation or general anesthesia will be permitted.
Oral dual antiplatelet treatment for more than 1 month. Tirofiban is maintained for 24-48 hours, overlapping with oral antiplatelet for 4-6 hours, after excluding intracranial hemorrhage.
Carotid Stenting
Emergent carotid stenting will be performed if the patient is randomized in the intervention arm. The order to treat (head first or neck first) the extracranial carotid artery lesion will be left to the interventionist discretion.
Thrombectomy
Intracranial thrombectomy is an endovascular procedure. In the experimental group, thrombectomy will be completed with extracranial carotid stenting.
Dual antiplatelet treatment
Dual antiplatelet therapy is administered after 24 hours of imaging follow-up excluding intracranial hemorrhagic complications. Aspirin Enteric-coated Tablets (Bay Aspirin) 100mg once a night+Clopidogrel Sulfate Tablets (Plavix) 75mg once daily. If there is no contraindication, maintain for more than 1 month, then adjust the dosing regimen according to the guidelines.
Intraoperative Drug Treatment
Tirofiban is used as an adjunct to endovascular therapy. The currently recommended dosing regimen is a combined intra-catheter arterial administration of a loading dose of 0.4 μg/(kg-min) for 30 min (total dose not to exceed 1 mg)， followed by intravenous pumping of 0.1μg/(kg-min) for 24-48h, and adjustment of dosing in conjunction with CT.
Thrombectomy alone
Intracranial thrombectomy alone（balloon dilation of the ipsilateral internal carotid artery if necessary）
No interventions assigned to this group
Interventions
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Carotid Stenting
Emergent carotid stenting will be performed if the patient is randomized in the intervention arm. The order to treat (head first or neck first) the extracranial carotid artery lesion will be left to the interventionist discretion.
Thrombectomy
Intracranial thrombectomy is an endovascular procedure. In the experimental group, thrombectomy will be completed with extracranial carotid stenting.
Dual antiplatelet treatment
Dual antiplatelet therapy is administered after 24 hours of imaging follow-up excluding intracranial hemorrhagic complications. Aspirin Enteric-coated Tablets (Bay Aspirin) 100mg once a night+Clopidogrel Sulfate Tablets (Plavix) 75mg once daily. If there is no contraindication, maintain for more than 1 month, then adjust the dosing regimen according to the guidelines.
Intraoperative Drug Treatment
Tirofiban is used as an adjunct to endovascular therapy. The currently recommended dosing regimen is a combined intra-catheter arterial administration of a loading dose of 0.4 μg/(kg-min) for 30 min (total dose not to exceed 1 mg)， followed by intravenous pumping of 0.1μg/(kg-min) for 24-48h, and adjustment of dosing in conjunction with CT.
Eligibility Criteria
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Inclusion Criteria
2. Acute ischemic stroke and the onset time within 24h;
3. Pre-stroke mRS 0-1;
4. NIHSS score of 6-30 before randomization;
5. Completed randomization within 24h after stroke onset；
6. Subjects are able to sign an informed consent in person or by the legal representative
1. Satisfy one of the following criteria:①Within 6 hours of onset, imaging confirmed occlusion of the acute anterior circulation internal carotid artery or the M1 / M2 segment of the middle cerebral artery；②Within 6-16 hours of onset, imaging confirmed acute occlusion of anterior circulation internal carotid artery or M1 / M2 segment of middle cerebral artery followed by DAWN or DEFUSE-3 criteria；③In patients with 16 to 24 hours of onset, imaging confirmed intracranial occlusion of the acute anterior circulation internal carotid artery or M1 / M2 segment of the middle cerebral artery followed by DAWN criteria.
2. Extracranial segment stenosis ≥70% or occlusion in tandem lesions.
3. ASPECT score ≥ 6 points.
4. eTICI≥2b\_50 after middle cerebral artery thrombectomy and extracranial balloon dilatation in 10min.
Exclusion Criteria
4.Parenchymal organ surgery or biopsy were performed last 1 month; Any active or recent bleeding (gastrointestinal, urinary, etc.); Parenchymal organ surgery and biopsy were performed last 1 month 5.Difficult to control hypertension: systolic blood pressure\> 185mmHg and/ or diastolic blood pressure\> 110mmHg.
6.Severe active bleeding or known significant bleeding tendency: platelet count \<100X109/L; heparin within 48 hours before surgery, and APTT≥35s; oral warfarin, and INR\> 1.7; direct thrombin or factor Xa inhibitors, such as apixaban tablets, rivaroxaban tablets and dabigatran (patients with no history of abnormal coagulation or suspected abnormal coagulation function do not need laboratory results of INR or APTT before enrollment）.
7.Severe heart, liver, kidney, and other organ insufficiencies (glomerular filtration rate \<30 ml/min or blood creatinine\> 220μmol/L(2.5mg/dl)).
8.Patients occurred acute ischemic cerebral infarction within 48 hours after percutaneous coronary or cerebrovascular intervention or major surgery (if more than 48h, patients may be enrolled).
9\. The patient has a history of cerebral vasculitis with clear evidence; 10. Patients with pre-onset neurological or psychiatric disorders that affect the assessment of their condition 11.Women who are known to be pregnant or lactating. 12.Known severe allergy to contrast agents (except for mild rash allergy) 13.Expected survival time less than 1 year (such as combined malignancy, severe cardiopulmonary disease, etc.) 14.Patients unable to complete the follow up (e. g., no fixed residence, overseas patients, etc.).
1. Imaging confirmed the posterior circulatory lesions.
2. Midline displacement of the brain or brain herniation, ventricular occupancy
3. New onset bilateral acute stroke or multiple intracranial macrovascular occlusions.
4. Patients with vascular variants that are difficult to treat with endovascular therapy as displayed by CTA/MRA;
5. The ipsilateral middle cerebral artery and anterior cerebral occlusion were combined.
18 Years
85 Years
ALL
No
Sponsors
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Xueli Cai
OTHER_GOV
Responsible Party
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Xueli Cai
Chief physician
Principal Investigators
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Li X Cai
Role: PRINCIPAL_INVESTIGATOR
Lishui Municipal Hospital
Locations
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Lishui Municipal Hospital
Lishui, Zhejiang, China
Countries
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Central Contacts
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Facility Contacts
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Li X Cai, Ph.D
Role: primary
References
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Other Identifiers
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WKJ-ZJ-2327
Identifier Type: -
Identifier Source: org_study_id
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