doi: 10.3174/ajnr.A0757
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American Journal of Neuroradiology 29:63-68, January 2008
© 2008 American Society of Neuroradiology
INTERVENTIONAL
Feasibility, Procedural Morbidity and Mortality, and Long-Term Follow-Up of Endovascular Treatment of 321 Unruptured Aneurysms
a Department of Neuroradiology Hospitalier Universitaire Maison Blanche, Reims, France
b Department of Radiology A, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
c Department of Radiology, Centre Hospitalier Universitaire de Clermont Ferrand, Clermont Ferrand, France
d Department of Radiology, Centre Hospitalier Universitaire d’Angers, Angers, France
e Department of Neuroradiology, Centre Hospitalier de Toulouse, Hôpital Purpan, Toulouse, France
f Department of Neuroradiology, Centre Hospitalier de Tours, Tours, France
Please address correspondence to Sophie Gallas, MD, Department of Neuroradiology, Centre Hospitalier Universitaire Maison Blanche, 45 rue Cognacq-Jay, 51100 Reims cedex France; e-mail: sgallas{at}chu-reims.fr
BACKGROUND AND PURPOSE: The purpose of our study was to evaluate the technical feasibility, morbidity and mortality, and durability of occlusion of unruptured aneurysms treated with Guglielmi detachable coils (GDCs) with a long-term follow-up.
MATERIALS AND METHODS: Between January 1998 and January 2005, we treated 321 unruptured aneurysms with GDCs in 5 neuroradiologic institutions. During this period, 63% of unruptured aneurysms were treated by endovascular technique. Procedural feasibility, technical complications, morbidity and mortality, and acute and long-term angiographic occlusion were assessed.
RESULTS: Overall technical feasibility of coiling treatment was 94%; 302 aneurysms were treated by endovascular technique. At the end of the initial procedure, acute occlusion was classified as complete in 207 cases (70%), subtotal in 84 cases (26.1%), and incomplete in 11 cases (3.9%). Ischemic complications were observed in 28 patients (9%); 8 patients (2.6%) had perforation of their aneurysms. Treatment-related morbidity was 14.4%, and morbidity with clinical complications was evaluated at 7.7% (n = 23 patients). Five patients (1.7%) died as a result of aneurysm perforation. Final follow-up angiograms, after 9 secondary treatments, demonstrated complete occlusion in 193 patients (69.5%), subtotal in 80 aneurysms (28.5%), and incomplete occlusion in 5 (1.8%). Nineteen patients were lost to follow-up (6.3%).
CONCLUSION: Endovascular coiling with detachable coils is an attractive option for treatment of unruptured aneurysms. This method of treatment is safe with a low rate of complications. Prospective studies with longer follow-up periods are needed to assess the long-term durability of occlusion in unruptured aneurysms.
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