O Nikoubashman1, R Pjontek2, M-A Brockmann2, R Tolba3, M Wiesmann4. 1. From the Department of Neuroradiology (O.N., R.P., M.-A.B., M.W.) Medical Imaging Physics (O.N.), Institute of Neuroscience and Medicine 4, Forschungszentrum Jülich, Jülich, Germany. 2. From the Department of Neuroradiology (O.N., R.P., M.-A.B., M.W.). 3. Institute for Laboratory Animal Science and Experimental Surgery (R.T.), University Hospital Aachen, Aachen, Germany. 4. From the Department of Neuroradiology (O.N., R.P., M.-A.B., M.W.) mwiesmann@ukaachen.de.
Abstract
BACKGROUND AND PURPOSE: Coil migration is a potentially serious complication of endovascular aneurysm treatment. The aim of the study was to systematically investigate the effectiveness of coil retrieval with a stent retriever in an animal model. MATERIALS AND METHODS: A total of 148 coils of various types and sizes were placed into arteries of varying diameters in a porcine in vivo model. Coil retrieval was performed by placing a Trevo ProVue stent retriever over the coil and trying to trap a part of the platinum coil within the stent mesh by advancing the microcatheter over the stent or simply by retrieving the stent without trying to trap the coil by advancing the microcatheter. RESULTS: Coil retrieval was successful in 101 of 102 cases (99%), in which trapping of the coil within the stent retriever by advancing the microcathter was applied. When we only pulled back the stent without trapping the coil, retrieval was successful in only 5 of 46 cases (11%). Coil type, coil structure (2D versus 3D), actual coil shape in the affected vessel, investigator experience, aspiration, coil localization, and vessel diameter had no significant influence on retrieval outcome. There was no case of vessel perforation. CONCLUSIONS: Retrieval of migrated platinum coils with a stent retriever is an effective treatment option for migrated coils when the correct technique is applied.
BACKGROUND AND PURPOSE:Coil migration is a potentially serious complication of endovascular aneurysm treatment. The aim of the study was to systematically investigate the effectiveness of coil retrieval with a stent retriever in an animal model. MATERIALS AND METHODS: A total of 148 coils of various types and sizes were placed into arteries of varying diameters in a porcine in vivo model. Coil retrieval was performed by placing a Trevo ProVue stent retriever over the coil and trying to trap a part of the platinumcoil within the stent mesh by advancing the microcatheter over the stent or simply by retrieving the stent without trying to trap the coil by advancing the microcatheter. RESULTS:Coil retrieval was successful in 101 of 102 cases (99%), in which trapping of the coil within the stent retriever by advancing the microcathter was applied. When we only pulled back the stent without trapping the coil, retrieval was successful in only 5 of 46 cases (11%). Coil type, coil structure (2D versus 3D), actual coil shape in the affected vessel, investigator experience, aspiration, coil localization, and vessel diameter had no significant influence on retrieval outcome. There was no case of vessel perforation. CONCLUSIONS: Retrieval of migrated platinum coils with a stent retriever is an effective treatment option for migrated coils when the correct technique is applied.
Authors: Andrea M Herrmann; Stephan Meckel; Matthew J Gounis; Leona Kringe; Edith Motschall; Christoph Mülling; Johannes Boltze Journal: J Cereb Blood Flow Metab Date: 2019-02-07 Impact factor: 6.200
Authors: Andreas Simgen; Michael Kettner; Frida Juliane Webelsiep; Toshiki Tomori; Ruben Mühl-Benninghaus; Umut Yilmaz; Pervinder Bhogal; Matthias W Laschke; Michael D Menger; Wolfgang Reith; Philipp Dietrich Journal: Clin Neuroradiol Date: 2020-05-18 Impact factor: 3.649
Authors: Andreas Simgen; Michael Kettner; Philipp Dietrich; Toshiki Tomori; Ruben Mühl-Benninghaus; Pervinder Bhogal; Matthias W Laschke; Michael D Menger; Wolfgang Reith; Umut Yilmaz Journal: Clin Neuroradiol Date: 2020-03-12 Impact factor: 3.649
Authors: Johanna Sandmann; Thorsten Sichtermann; Franziska Sonja Müschenich; Hadi Nasri; Sarah Heringer; Anastasios Mpotsaris; Martin Kramer; Martin Wiesmann; Omid Nikoubashman Journal: PLoS One Date: 2019-01-10 Impact factor: 3.240