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Stent-assisted mechanical recanalization for the treatment of acute ischemic stroke

XU Hao-wen, SONG Bo, GUO Xin-hin, GUAN Sheng. Department of Interventional Radiology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China  
Objective To evaluate the safety and efficacy of stent-assisted mechanical recanalization technique in treating acute ischemic stroke. Methods Stent-assisted mechanical recanalization procedure was carried out in 12 patients with acute ischemic stroke. The lesions were located at the anterior circulation in 10 cases and at posterior circulation in 2 cases. The clinical data were retrospectively analyzed. The technical success rate, the vascular reeanalization, the occurrence of symptomatic intracranial hemorrhage, the clinical improvement and mortality were observed and evaluated. Results The stent was successfully deployed in 11 patients (92%). After the treatment, different degrees of vascular reeanalization were obtained in all patients. The complete (TIMI 3), partial (TIMI 2) and minor (TIMI 1) reeanalization rate was 58.3% (7/12), 25% (3/12) and 8.3% (1/12), respectively. Postoperative symptomatic intracranial hemorrhage occurred in one patient (8.3%). Stroke-related death occurred in one patient (8.3%) and eight patients had their modified Rankin Score ≤ 2. Conclusion For the treatment of acute ischemic stroke, stent-assisted mechanical reeanalization technique is clinically feasible and safe with high vascular reeanalization rate although further studies with larger sample to clarify its clinical usefulness are still needed. (j Intervent Radiol, 2011 , 20: 599-602)
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