Introduction: Flow-diversion with pipeline embolization device (PED) is recently gaining ground. Data on the safety and efficacy of the PED in blister-like aneurysms (BLAs) are limited. We aim to present our with the use of the PED in BLAs
Methods: A total of 8 patients harboring 8 BLAs were treated with the PED at our institution between November 2011 and April 2013
Results: The average aneurysm size was 2.5 mm. Five patients had sustained a subarachnoid hemorrhage (SAH), 1 patient presented with sentinel headaches, and in 2 patients the aneurysm was incidentally discovered. Seven aneurysms arose from the ICA and 1 from the basilar artery. Placement of the PED was successful in all 8 patients. There were no procedural or perioperative complications in any of the patients. At the latest follow-up, all 8 patients achieved a favorable outcome (mRS 0-2). Angiographic follow-up was available for 6 patients at a mean time point of 3.9 months. Follow-up angiography showed 100% aneurysm occlusion in 5 patients and marked decrease in aneurysm size in 1 patient.
Conclusions: The findings of this study suggest that the PED may be a safe and effective treatment for BLAs. Given the limitations of other treatment modalities and the challenging nature of BLAs, flow diversion may be a valuable option for these lesions..
Patient Care: This presents a suitable alternative for endovascular treatment of Blister like aneurysm with favorable outcome. This study justify a future work that compares PED with other endovascular modalities.
Learning Objectives: PED is a safe and effective treatment for BLAs with favorable outcomes.
in this study, PED use had no morbimortality and achieved a satisfactory complete occlusion rate of 62.5%