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<p>Aneurysms of the a2 segment of the anterior inferior cerebellar artery have a high incidence of nonsacullar morphology compelling parent artery occlusion (PAO) as treatment. Well-developed leptomeningeal collaterals and bypass surgery may reduce the occurrence of ischemic complications, but if PAO was made on the segment involving the origin of the internal auditory artery, complications are challenging to avoid. Few studies have clearly described the clinical course of neurologic deficits following PAO of a2 aneurysms. We report a case which recovered from audiovestibular loss and facial palsy after endovascular PAO of a ruptured a2 aneurysm and discuss indication of PAO.</p>

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Recovery of neurological complications following endovascular parent artery occlusion of ruptured a2 segment anterior inferior cerebellar artery aneurysm: a case report

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  • 发表日期：

    2025年5月16日

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  • Young-Soo Chang,
  • Sun-Yoon Chung

摘要

Aneurysms of the a2 segment of the anterior inferior cerebellar artery have a high incidence of nonsacullar morphology compelling parent artery occlusion (PAO) as treatment. Well-developed leptomeningeal collaterals and bypass surgery may reduce the occurrence of ischemic complications, but if PAO was made on the segment involving the origin of the internal auditory artery, complications are challenging to avoid. Few studies have clearly described the clinical course of neurologic deficits following PAO of a2 aneurysms. We report a case which recovered from audiovestibular loss and facial palsy after endovascular PAO of a ruptured a2 aneurysm and discuss indication of PAO.