Use of the pCONus HPC as an adjunct to coil occlusion of acutely ruptured aneurysms: early clinical experience using single antiplatelet therapy

Perez, Marta Aguilar and AlMatter, Muhammad and Hellstern, Victoria and Wendl, Christina and Ganslandt, Oliver and Baezner, Hansjoerg and Henkes, Hans (2020) Use of the pCONus HPC as an adjunct to coil occlusion of acutely ruptured aneurysms: early clinical experience using single antiplatelet therapy. JOURNAL OF NEUROINTERVENTIONAL SURGERY, 12 (9). 862-+. ISSN 1759-8478, 1759-8486

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Abstract

Background Coil occlusion has become the standard treatment for many ruptured aneurysms. However, specific aneurysm structures pose technical difficulties and may require the use of adjunctive neck-bridging devices, which necessitate the use of dual antiplatelet therapy. The hydrophilic polymer coating (pHPC, phenox) is a surface modification that inhibits platelet adhesion. Objective To present initial experience with the pCONUS HPC device as an adjunct to coil embolization for ruptured aneurysms using single antiplatelet therapy (SAPT). Methods All patients who were treated with the pCONUS HPC for ruptured aneurysms using SAPT were retrospectively identified. The occurrence of thromboembolic and hemorrhagic complications was recorded together with the angiographic and clinical follow-up details. Results Fifteen patients were identified (nine female) with a median age of 54 years (range 27-81). Six aneurysms were located at the anterior communicating artery, five at the middle cerebral artery bifurcation, two at the basilar artery bifurcation, one at the posterior communicating artery, and one involving the intradural internal carotid artery. Ten patients (66.6%) achieved modified Raymond-Roy classification I or II at post-treatment angiography, with 45.5% of patients having adequate occlusion (defined as complete occlusion or neck remnant) at follow-up. All patients received acetylsalicylic acid (ASA) as SAPT before and after the procedure. Intraprocedural thrombus formation was seen in three patients (20%), resolving in two patients after a bolus dose of eptifibatide, and one treated with mechanical aspiration. No clinical or radiological consequences were seen. There were no recurrent aneurysm ruptures. One patient died owing to cerebral vasospasm. Conclusion This initial clinical experience highlights the possibility and limitations of using the pCONUS HPC device in the treatment of complex ruptured aneurysm with ASA as SAPT. Randomized trials with longer follow-up in larger cohorts are underway.

Item Type: Article
Uncontrolled Keywords: STENT-ASSISTED COILING; INTRACRANIAL ANEURYSMS; ENDOVASCULAR TREATMENT; SUBARACHNOID HEMORRHAGE; CEREBRAL ANEURYSMS; COMPLICATIONS; EMBOLIZATION; OUTCOMES; TRIAL; WEB; aneurysm; coil; device; intervention; stent
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Röntgendiagnostik
Depositing User: Dr. Gernot Deinzer
Date Deposited: 15 Mar 2021 11:52
Last Modified: 15 Mar 2021 11:52
URI: https://pred.uni-regensburg.de/id/eprint/43938

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