doi: 10.1161/hs0102.100486
(Stroke. 2002;33:210.)
© 2002 American Heart Association, Inc.
Original Contributions |
Endovascular Treatment of Intracranial Aneurysms With Guglielmi Detachable Coils
Analysis of Midterm Angiographic and Clinical Outcomes
From the Department of Diagnostic and Interventional Radiology, Royal Perth Hospital (P.N., M.S.K., C.C.P., M.B., H.A., W.M.) and University of Western Australia (M.S.K.), Perth, Australia.
Correspondence to A/Prof M.S. Khangure, Head of Department, Department of Diagnostic and Interventional Radiology, Royal Perth Hospital, PO Box X2213 GPO, Perth WA 6847, Australia. E-mail mark.khangure{at}health.wa.gov.au
Background and Purpose— The previous decade has witnessed increasing application of Guglielmi detachable coils (GDCs) for the treatment of intracranial aneurysms. However, the midterm angiographic and clinical outcomes are not well documented. We report here the angiographic and clinical outcomes of patients treated with GDCs over an 8-year period .
Methods— Between 1992 and 1998, 144 patients with 160 intracranial aneurysms were treated with GDCs. Clinical follow-up data were obtained from medical records, questionnaires, and telephone interviews. Angiographic studies were reviewed by 2 neuroradiologists to obtain consensus regarding the degree of aneurysm occlusion.
Results— Eighty-one patients had ruptured aneurysms; 63 had unruptured aneurysms. Technical success was achieved in 91% of patients, with complete aneurysm occlusion in 46%, neck remnants in 16%, and residual body filling in 38%. Angiographic follow-up revealed that residual body filling in some aneurysms was resolved, small neck remnants were stable, and the recanalization rate decreased with time. All 63 patients with unruptured aneurysms were discharged from hospital with independent clinical status (Glasgow Outcome Score, 1 or 2). For patients with ruptured aneurysms, discharge clinical status correlated with the Hunt & Hess clinical grade at the time of treatment. Clinical follow-up for a minimum of 2 years was available in 98.5% of patients. Ninety-four percent of patients treated for unruptured aneurysms were independent at 2 years, and 82% of Hunt & Hess grade I to II patients were independent.
Conclusions— Coil embolization is a safe and effective treatment for both ruptured and unruptured aneurysms. Increasing angiographic stability is demonstrated in treated aneurysms up to 3 years from coil embolization. Therefore, follow-up angiography until this time is advisable.
Key Words: cerebral aneurysm • embolization • endovascular therapy • recanalization • subarachnoid hemorrhage
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