Minim Invasive Neurosurg 2009; 52(2): 89-92
DOI: 10.1055/s-0029-1215579
Case Report

© Georg Thieme Verlag KG Stuttgart · New York

Coil Migration after Endovascular Coil Occlusion of Internal Carotid Artery Pseudoaneurysms within the Sphenoid Sinus

T. Struffert 1 , J. H. Buhk 2 , M. Buchfelder 3 , V. Rohde 4 , A. Doerfler 1 , M. Knauth 2
  • 1Department of Neuroradiology, University of Erlangen, Erlangen, Germany
  • 2Department of Neuroradiology, University of Goettingen, Goettingen, Germany
  • 3Department of Neurosurgery, University of Erlangen, Erlangen, Germany
  • 4Department of Neurosurgery, University of Goettingen, Goettingen, Germany
Further Information

Publication History

Publication Date:
18 May 2009 (online)

Abstract

Introduction: We report two cases of coil migration after endovascular treatment of pseudoaneurysm of the internal carotid artery within the sphenoid sinus with coils and noncovered stents.

Case Reports: Two patients underwent sphenoid sinus exposure for pituitary adenoma and chronic infection, respectively. As a complication pseudoaneurysms of the internal carotid artery within the sphenoid sinus developed. One patient was treated with stent and coils, the second with coils alone. Both patients experienced coil migration after 9 and 26 months, respectively, with the necessity for further treatment. Imaging was performed using flat detector computed tomography (FD-CT). Literature review revealed two additional cases of coil migration and four patients with the same treatment in stable condition.

Conclusion: Pseudoaneurysms of the internal carotid artery are a special entity and the environment of the aneurysm within the sphenoid sinus may change over a long time. Coil embolization may lead to the late onset complication of coil migration with the possible risk of acute epistaxis. As a consequence, these patients need a careful and prolonged follow up. FD-CT is an appropriate technique to visualize the implanted coils and if present the migration of coil material.

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Correspondence

T. StruffertMD 

Department of Neuroradiology

University of Erlangen

Schwabachanlage 6

91054 Erlangen

Germany

Phone: +49/9131/853 93 88

Fax: +49/9131/853 61 79

Email: tobias.struffert@uk.uni-erlangen.de