Efficacy and Safety of Willis Covered Stent for Treatment of Internal Carotid Artery Aneurysms

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Abstract

Objective:

The purpose of this study was to evaluate the clinical and short-term outcome of patients who underwent covered stent treatment for internal carotid artery aneurysms.

Methods:

Twelve cases patients with internal carotid artery aneurysms were treated with Willis covered stents during the period from December 2010 to January 2016. The guiding catheter was placed as high as possible to facilitate the delivery of the covered stent system.

Results:

Covered stent placement was successful in 11 of 12 case patients (91.6%), embolization was successful in 11 of 12 patients (91.6%), the treatment in 1 patient of 12 cavernous aneurysms patients was performed covered stents +ONYX + plastic coil embolization, and the other was used Willis covered stents. The results indicated that only 1 of 12 patients underwent postoperative massive cerebral infarction, but was successfully rescued. The angiographic following-up of patients using covered stent suggested that 12 cases patients were complete occlusion and the parent artery patency. Clinical follow-up results also demonstrated that clinical neurologic symptoms fully recovered in 11 of 12 cases patients, another case improved and were not aggravated in any patient before discharge and had aggravated symptoms.

Conclusion:

Willis covered stents are effective for treatment of internal carotid artery aneurysms with good safety and short-term outcomes.

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