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Updated: Aug 9, 2026
Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Hemodynamic, neurological, and cognitive outcomes after surgical revascularisation in occlusive cerebrovascular
Chingiz Nurimanov1, Karashash Menlibayeva2, Iroda Mammadinova1
1Department of Vascular and Functional Neurosurgery, National Centre for Neurosurgery, Astana, Kazakhstan.
Insights
This study investigates cerebral revascularization using superficial temporal artery-to-middle cerebral artery (STA-MCA) bypass for chronic carotid artery occlusion. It assesses neuro-radiological, clinical, and cognitive outcomes to improve surgical decision-making and patient care.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Medical Imaging
Background:
- Chronic carotid artery occlusive disease presents a significant risk for ischemic events and neurological deficits.
- Optimizing surgical revascularization requires a comprehensive understanding of anatomical, hemodynamic, and functional factors.
- This study addresses the need for integrated assessment in patients with internal carotid artery occlusion.
Purpose of the Study:
- To evaluate neuro-radiological, clinical, and cognitive outcomes after superficial temporal artery-to-middle cerebral artery (STA-MCA) bypass in patients with chronic internal carotid artery occlusion.
- To identify predictors of successful revascularization and favorable clinical outcomes by integrating diverse patient data.
- To refine surgical decision-making, risk stratification, and optimize individualized patient care for improved efficacy and safety of STA-MCA bypass.
Main Methods:
- A single-centre, prospective, open-label interventional study involving 60 patients with chronic internal carotid artery occlusion undergoing STA-MCA bypass.
- Primary endpoint: incidence of ischemic stroke within 6 months post-surgery. Secondary evaluations include pre- and postoperative angiographic assessment, collateral circulation, donor vessel diameter, and arterial spin labelling MRI for cerebral perfusion.
- Neurological and cognitive functions assessed using standardized clinical and neuropsychological tests, with follow-up focusing on bypass patency, perfusion changes, and clinical outcomes.
Main Results:
- The study is designed to correlate postoperative findings with cognitive and neurological recovery.
- Key outcomes to be analyzed include bypass patency, changes in cerebral perfusion, and overall clinical status.
- Identification of predictors for successful revascularization and positive patient outcomes is anticipated.
Conclusions:
- Integrating anatomical, hemodynamic, and functional data is crucial for predicting successful cerebral revascularization outcomes.
- Correlation of imaging and perfusion findings with cognitive and neurological recovery can enhance surgical decision-making.
- The study aims to optimize the efficacy and safety of STA-MCA bypass for chronic carotid artery occlusive disease.
Background:
Chronic carotid artery occlusive disease is associated with a high risk of ischemic events and long-term neurological deficits. Optimising surgical revascularisation outcomes requires an integrated understanding of anatomical, hemodynamic, and functional factors. This study aims to assess the neuro-radiological, clinical, and cognitive outcomes following cerebral revascularisation in patients with chronic internal carotid artery occlusion.
Methods:
This single-centre, prospective, open-label interventional longitudinal study includes 60 patients with chronic internal carotid artery occlusion undergoing superficial temporal artery-to-middle cerebral artery (STA-MCA) bypass at National Centre for Neurosurgery in Kazakhstan. The primary endpoint of the study is the incidence of ischemic stroke during the 6-month follow-up period after surgery. Pre- and postoperative evaluations include detailed angiographic assessment of collateral circulation and donor vessel diameter, as well as cerebral perfusion imaging using arterial spin labelling MRI. Neurological and cognitive function are assessed using standardized clinical and neuropsychological tests. Early and six-month follow-up evaluations focus on bypass patency, perfusion changes, and clinical outcomes.
Discussion:
By integrating anatomical, hemodynamic, and functional data, this study aims to identify predictors of successful revascularisation and favorable clinical outcomes. Correlation of postoperative angiographic and perfusion findings with cognitive and neurological recovery may refine surgical decision-making, enhance risk stratification, and optimize individualized patient care. Ultimately, this comprehensive approach seeks to improve the overall efficacy and safety of STA-MCA bypass in patients with chronic carotid artery occlusive disease.
Trial Registration:
ClinicalTrials.gov NCT07396025. Registered on February 5, 2026.