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Endovascular Therapy Versus Best Medical Treatment for Acute Large Vessel Occlusion Stroke With Low NIHSS

Sponsor: First Affiliated Hospital of Wannan Medical College • ClinicalTrials.gov ID: NCT06143488

Registry updated: 2026-09-25

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Description

Patients presenting with mild symptoms of acute ischemic stroke are common and account for approximately half of all acute ischemic stroke. About 30% of patients with minor stroke have a 90-day functional disability. Radiologically proven a large vessel occlusion (LVO) in patients with minor stroke is a well-established predictor of poor outcomes, while the poor outcomes following best medical management in patients with minor stroke with the underlying presence of a LVO are mainly driven by the occurrence of early neurological deterioration (END). Considering the well-known strong association between lack of arterial recanalization and END, endovascular therapy (EVT) appears as an attractive option to improve functional outcomes for LVO-related patients with stroke with mild symptoms. Whether EVT is safe and effective in patients with mild stroke with an LVO is currently debated, since these patients were typically excluded from the pivotal EVT trials. The current study aimed to further test the hypothesis that endovascular therapy would be superior to medical management with respect to functional recovery among low NIHSS patients caused by acute large-vessel occlusion in the anterior circulation.

Interventions

Endovascular therapy (Procedure)
Drug: Best medical management All the patients enrolled received standard guideline-directed medical therapy including: monitor vital signs, management of blood pressure, glucose and lipids, antithrombotic (antiplatelet or anticoagulant therapy determined by treating physician) therapy if appropriate. Procedure: Endovascular therapy In the procedure, the methods including mechanical thrombectomy, aspiration thrombectomy, intra-arterial thrombolysis, angioplasty and stenting can be used according to the local interventionalists' choice. Mechanical thrombectomy or aspiration thrombectomy will be recommended as the primary treatment.
Best medical management (Drug)
All the patients enrolled received standard guideline-directed medical therapy including: monitor vital signs, management of blood pressure, glucose and lipids, antithrombotic (antiplatelet or anticoagulant therapy determined by treating physician) therapy if appropriate.

Eligibility criteria

1. Aged 18 years or older; 2. The time from onset of acute ischemic stroke to randomization is within 24 hours. Onset time is defined as the patient's Last Known Well (LKW); 3. Low NIHSS score (2-5 points), with at least one of the following items: 1. Altered mental status (lethargy or worse); 2. Facial palsy (facial weakness score ≥ 1 point); 3. Motor dysfunction (limb weakness score ≥ 1 point); 4. Aphasia (language disturbance score ≥ 1 point); 5. Hemispatial neglect (neglect score ≥ 1 point); 4. Intracranial internal carotid artery, proximal M1 or M2 segment of middle cerebral artery occlusion confirmed by cerebral CTA/MRA/DSA before randomization, which is identified as the culprit vessel for stroke; 5. All patients receive CTP/MR perfusion imaging, with a volume of perfusion delay (Tmax\>6 s) ≥ 50 mL; 6. Written informed consent is obtained from the patient or legal surrogate, with agreement for long-term follow-up.

Conditions

Acute Ischemic Stroke Mild Neurocognitive Disorder Thrombectomy

Locations

The First Affiliated Hospital, Yijishan Hospital of Wannan Medical College — Wuhu, Anhui, China

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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