Muriel Pflaeging1, Lukas Goertz2, Michael Artur Smyk3, Bernd Turowski4, Anastasios Mpotsaris5, Lenhard Pennig6, Jan Borggrefe7, Boris Krischek8, Christoph Kabbasch9. 1. University of Cologne, Medical Faculty and University Hospital, Center for Neurosurgery, Kerpener Strasse 62, 50937 Cologne, Germany. Electronic address: muriel.pflaeging@uk-koeln.de. 2. University of Cologne, Medical Faculty and University Hospital, Center for Neurosurgery, Kerpener Strasse 62, 50937 Cologne, Germany; Department of Neuroradiology, University Hospital of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany. Electronic address: lukas.goertz@uk-koeln.de. 3. Department of Neuroradiology, University Hospital of Duesseldorf, Moorenstrasse 5, 40225 Duesseldorf, Germany. Electronic address: michaelartur.smyk@med.uni-duesseldorf.de. 4. Department of Neuroradiology, University Hospital of Duesseldorf, Moorenstrasse 5, 40225 Duesseldorf, Germany. Electronic address: bernd.turowski@med.uni-duesseldorf.de. 5. Department of Neuroradiology, University Hospital of Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany. Electronic address: ampotsaris@ukaachen.de. 6. Department of Neuroradiology, University Hospital of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany. Electronic address: lenhard.pennig@uk-koeln.de. 7. Department of Neuroradiology, University Hospital of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany. Electronic address: jan.borggrefe@uk-koeln.de. 8. University of Cologne, Medical Faculty and University Hospital, Center for Neurosurgery, Kerpener Strasse 62, 50937 Cologne, Germany; Department of Neurosurgery, Hôpitaux Robert Schuman, 9 Rue Edward Steichen, 2540 Luxembourg, Luxembourg. Electronic address: boris.krischek@uk-koeln.de. 9. Department of Neuroradiology, University Hospital of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany. Electronic address: christoph.kabbasch@uk-koeln.de.
Abstract
OBJECTIVE: To evaluate the safety and efficacy of the low-profile Acandis Acclino microstent for embolization of recurrent and residual intracranial aneurysms. METHODS: Consecutive patients treated with the Acclino for aneurysm remnants at three German neurovascular centers were enrolled. The technical success, complications, angiographic and clinical outcome were investigated. RESULTS: Nineteen patients (median age: 53 years) with 19 aneurysm remnants (median size: 5 mm, anterior circulation: 14) were included. Initial aneurysm treatment consisted of stand-alone coiling in 14 cases, stent-assisted coiling in 4 and clipping in 1. Acclino stent-assisted coil embolization was performed technically successfully in all patients. Morbidity occurred in one patient (5.3%) due to aneurysm perforation. At the angiographic follow-up with a median follow-up duration of 21 months (range: 5-37 months), complete occlusion was obtained in 76.9%. The retreatment rate was 7.7%. CONCLUSIONS: Retreatment of aneurysm remnants with the Acclino microstent was associated with high aneurysm occlusion rates and acceptable morbidity. Further studies will be necessary to draw a definite conclusion.
OBJECTIVE: To evaluate the safety and efficacy of the low-profile Acandis Acclino microstent for embolization of recurrent and residual intracranial aneurysms. METHODS: Consecutive patients treated with the Acclino for aneurysm remnants at three German neurovascular centers were enrolled. The technical success, complications, angiographic and clinical outcome were investigated. RESULTS: Nineteen patients (median age: 53 years) with 19 aneurysm remnants (median size: 5 mm, anterior circulation: 14) were included. Initial aneurysm treatment consisted of stand-alone coiling in 14 cases, stent-assisted coiling in 4 and clipping in 1. Acclino stent-assisted coil embolization was performed technically successfully in all patients. Morbidity occurred in one patient (5.3%) due to aneurysm perforation. At the angiographic follow-up with a median follow-up duration of 21 months (range: 5-37 months), complete occlusion was obtained in 76.9%. The retreatment rate was 7.7%. CONCLUSIONS: Retreatment of aneurysm remnants with the Acclino microstent was associated with high aneurysm occlusion rates and acceptable morbidity. Further studies will be necessary to draw a definite conclusion.