American Journal of Neuroradiology 27:1498-1501, August 2006
© 2006 American Society of Neuroradiology
INTERVENTIONAL
Procedural Complications of Coiling of Ruptured Intracranial Aneurysms: Incidence and Risk Factors in a Consecutive Series of 681 Patients
a Department of Radiology, St Elisabeth Ziekenhuis Tilburg, The Netherlands
b Department of Neurosurgery, St Elisabeth Ziekenhuis Tilburg, The Netherlands
c Department of Neurology, St Elisabeth Ziekenhuis Tilburg, The Netherlands
Address correspondence to W.J. van Rooij, MD, PhD, Department of Radiology, St Elisabeth Ziekenhuis, Hilvarenbeekseweg 60, 5022 GC Tilburg, The Netherlands; e-mail: radiol{at}knmg.nl
BACKGROUND AND PURPOSE: To report the incidence of procedural complications of coiling of ruptured intracranial aneurysms leading to permanent disability or death in a consecutive series of 681 patients and to identify risk factors for these events.
PATIENTS AND METHODS: Between January 1995 and July 2005, 681 consecutive patients with ruptured intracranial aneurysms were treated with detachable coils. Procedural complications (aneurysm rupture or thromboembolic) of coiling leading to death or neurologic disability at the time of hospital discharge were recorded. For patients with procedural complications, odds ratios (OR) with corresponding 95% confidence intervals (CI) were calculated for the following patient and aneurysm characteristics: patient age and sex, use of a supporting balloon, aneurysm location, timing of treatment, clinical condition at the time of treatment, and aneurysm size.
RESULTS: Procedural complications occurred in 40 of 681 patients (5.87%; 95% CI, 4.2% to 7.9%), leading to death in 18 patients (procedural mortality, 2.6%; 95% CI, 1.6% to 4.2%) and to disability in 22 patients (procedural morbidity, 3.2%; 95% CI, 2.0% to 4.9%). There were 8 procedural ruptures and 32 thromboembolic complications. The use of a temporary supporting balloon was the only significant risk factor (OR, 5.1; 95% CI, 2.3 to 15.3%) for the occurrence of procedural complications.
CONCLUSION: Procedural complication rate of coiling of ruptured aneurysms leading to disability or death is 5.9%. In this series, the use of a temporary supporting balloon in the treatment of wide-necked aneurysms was the only risk factor for the occurrence of complications.
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