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Endovascular Therapy Strategy for Acute Embolic Tandem Occlusion: The Pass-Thrombectomy-Protective Thrombectomy
Wen-Huo Chen1, Ting-Yu Yi1, Yan-Min Wu1
1Department of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, China.
Insights
The pass-thrombectomy-protective thrombectomy (double PT) technique is a feasible and safe approach for treating tandem occlusions in acute ischemic stroke patients. This method showed successful recanalization and a good clinical outcome in a small patient cohort.
Area of Science:
- Neurology
- Interventional Neurology
- Vascular Neurology
Background:
- Embolic occlusions of the common carotid artery (CCA)/internal carotid artery (ICA) and intracranial arteries are common in acute ischemic stroke.
- These occlusions lead to high morbidity and can be treated with endovascular therapy.
- Optimal endovascular strategies for tandem occlusions remain unclear.
Purpose of the Study:
- To evaluate the feasibility of the pass-thrombectomy-protective thrombectomy (double PT) technique.
- To assess the clinical outcomes of patients treated with the double PT technique for tandem occlusions.
Main Methods:
- Retrospective analysis of a prospective stroke registry database (January 2015 - February 2017).
- Inclusion of 7 patients with tandem occlusions of the CCA/ICA and intracranial arteries.
- Evaluation of clinical outcomes at 3 months using the modified Rankin Scale (mRS).
Main Results:
- Successful recanalization was achieved in 85.7% of patients.
- The median reperfusion time was 61 minutes.
- A good clinical outcome (mRS ≤ 2) was observed in 42.9% of patients, with a 14.3% mortality rate.
Conclusions:
- The double PT technique is a feasible and safe option for treating initial embolic tandem occlusions of the CCA/ICA.
- Further research with larger cohorts is warranted to confirm these findings.
Objective:
Embolic occlusions of the common carotid artery (CCA)/internal carotid artery (ICA) and intracranial artery occlusions in acute ischemic stroke are associated with high morbidity and can benefit from endovascular therapy. However, the optimal endovascular strategy for these conditions is unclear. This study aimed to evaluate the feasibility of the pass-thrombectomy-protective thrombectomy (double PT) technique and the clinical outcome of treated patients.
Methods:
We collected data on embolic occlusion of the CCA/ICA and intracranial artery occlusion in our prospective stroke registry database between January 2015 and February 2017. Clinical and angiographic data were retrospectively analyzed. Clinical outcome was evaluated at 3 months (modified Rankin scale [mRS] score), and an mRS score of 2 or lower was defined as a good clinical outcome.
Results:
A total of 7 patients with tandem occlusion were included, with a mean age of 66 years. The median admission National Institutes of Health Stroke Scale score was 20, and 6 of 7 patients (85.7%) underwent successful recanalization. The median reperfusion time of the affected intracranial artery was 61 minutes. The rate of good clinical outcome was 42.9% (3/7), the mortality rate was 14.3% (1/7), and the embolic event rate was 14.3% (1/7) when the proximal clot was retrieved.
Conclusions:
The double PT technique is feasible and safe in treating initial embolic tandem occlusion of the CCA/ICA.
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