scholarly journals Analysis of risk factors for perifocal oedema after endovascular embolization of unruptured intracranial arterial aneurysms

2015 ◽  
Vol 49 (4) ◽  
pp. 341-346 ◽  
Author(s):  
Snezana Lukic ◽  
Slobodan Jankovic ◽  
Katarina Surlan Popovic ◽  
Dragic Bankovic ◽  
Peter Popovic ◽  
...  
Keyword(s):  
Risk Factors ◽  
Intracranial Aneurysms ◽  
Smoking Habit ◽  
Interventional Neuroradiology ◽  
Endovascular Embolization ◽  
Outcome Variable ◽  
Endovascular Coiling ◽  
Unruptured Intracranial Aneurysms ◽  
Perifocal Oedema ◽  
Platinum Coils

Abstract Background. Endovascular embolization is a treatment of choice for the management of unruptured intracranial aneurysms, but sometimes is complicated with perianeurysmal oedema. The aim of our study was to establish incidence and outcomes of perianeurysmal oedema after endovascular coiling of unruptured intracranial aneurysms, and to reveal possible risk factors for development of this potentially serious complication. Methods. In total 119 adult patients with endovascular embolization of unruptured intracranial aneurysm (performed at Department for Interventional Neuroradiology, Clinical Center, Kragujevac, Serbia) were included in our study. The embolizations were made by electrolite-detachable platinum coils: pure platinum, hydrophilic and combination of platinum and hydrophilic coils. Primary outcome variable was perianeurysmal oedema visualized by magnetic resonance imaging (MRI) 7, 30 and 90 days after the embolization. Results. The perianurysmal oedema appeared in 47.6% of patients treated with hydrophilic coils, in 21.6% of patients treated with platinum coils, and in 53.8% of those treated with mixed type of the coils. The multivariate logistic regression showed that variables associated with occurrence of perianeurysmal oedema are volume of the aneurysm, hypertension, diabetes and smoking habit. Hypertension is the most important independent predictor of the perianeurysmal oedema, followed by smoking and diabetes. Conclusions. The results of our study suggest that older patients with larger unruptured intracranial aneurysms, who suffer from diabetes mellitus and hypertension, and have the smoking habit, are under much higher risk of having perianeurysmal oedema after endovascular coiling.

scholarly journals Subarachnoid hemorrhage after surgical treatment of unruptured intracranial aneurysms

2018 ◽  
Vol 129 (2) ◽  
pp. 490-497
Author(s):  
Hidetoshi Matsukawa ◽  
Hiroyasu Kamiyama ◽  
Toshiyuki Tsuboi ◽  
Kosumo Noda ◽  
Nakao Ota ◽  
...  
Keyword(s):  
Risk Factors ◽  
Subarachnoid Hemorrhage ◽  
Surgical Treatment ◽  
Incidence Rate ◽  
Intracranial Aneurysms ◽  
Annual Incidence ◽  
Annual Incidence Rate ◽  
Excellent Outcome ◽  
Unruptured Intracranial Aneurysms ◽  
Average Annual Incidence

OBJECTIVEOnly a few previous studies have investigated subarachnoid hemorrhage (SAH) after surgical treatment in patients with unruptured intracranial aneurysms (UIAs). Given the improvement in long-term outcomes of embolization, more extensive data are needed concerning the true rupture rates after microsurgery in order to provide reliable information for treatment decisions. The purpose of this study was to investigate the incidence of and risk factors for postoperative SAH in patients with surgically treated UIAs.METHODSData from 702 consecutive patients harboring 852 surgically treated UIAs were evaluated. Surgical treatments included neck clipping (complete or incomplete), coating/wrapping, trapping, proximal occlusion, and bypass surgery. Clippable UIAs were defined as UIAs treated by complete neck clipping. The annual incidence of postoperative SAH and risk factors for SAH were studied using Kaplan-Meier survival analysis and Cox proportional hazards regression models.RESULTSThe patients’ median age was 64 years (interquartile range [IQR] 56–71 years). Of 852 UIAs, 767 were clippable and 85 were not. The mean duration of follow-up was 731 days (SD 380 days). During 1708 aneurysm years, there were 4 episodes of SAH, giving an overall average annual incidence rate of 0.23% (95% CI 0.12%–0.59%) and an average annual incidence rate of 0.065% (95% CI 0.0017%–0.37%) for clippable UIAs (1 episode of SAH, 1552 aneurysm-years). Basilar artery location (adjusted hazard ratio [HR] 23, 95% CI 2.0–255, p = 0.0012) and unclippable UIA status (adjusted HR 15, 95% CI 1.1–215, p = 0.046) were significantly related to postoperative SAH. An excellent outcome (modified Rankin Scale score of 0 or 1) was achieved in 816 (95.7%) of 852 cases overall and in 748 (98%) of 767 clippable UIAs at 12 months.CONCLUSIONSIn this large case series, microsurgical treatment of UIAs was found to be safe and effective. Aneurysm location and unclippable morphologies were related to postoperative SAH in patients with surgically treated UIAs.

Small (< 10-mm) incidentally found intracranial aneurysms, Part 1: reasons for detection, demographics, location, and risk factors in 212 consecutive patients

2011 ◽  
Vol 31 (6) ◽  
pp. E3 ◽  
Author(s):  
Ioannis Loumiotis ◽  
Anne Wagenbach ◽  
Robert D. Brown ◽  
Giuseppe Lanzino
Keyword(s):  
Risk Factors ◽  
Subarachnoid Hemorrhage ◽  
Intracranial Aneurysms ◽  
Imaging Techniques ◽  
Imaging Study ◽  
Consecutive Series ◽  
Common Location ◽  
Unruptured Intracranial Aneurysms ◽  
Paraclinoid Aneurysms ◽  
History Of

Object The widespread use of imaging techniques for evaluating nonspecific symptoms (vertigo, dizziness, memory concerns, unsteadiness, and the like) and focal neurological symptoms related to cerebrovascular disease has led to increased identification of asymptomatic incidentally discovered unruptured intracranial aneurysms (UIAs). The management of these incidental aneurysms is controversial and many factors need to be considered. The authors describe reasons leading to diagnosis, demographics, and risk factors in a large consecutive series of patients with small incidentally found UIAs. Methods The authors prospectively evaluated 335 patients harboring 478 small (< 10-mm) UIAs between January 2008 and May 2011. Patients with known aneurysms, possibly symptomatic aneurysms, arteriovenous malformation–related aneurysms, patients with a history of subarachnoid hemorrhage from another aneurysm, and patients harboring extradural aneurysms were excluded from the analysis. Only truly incidental small aneurysms (272 aneurysms in 212 patients) were considered for the present analysis. Data regarding the reason for detection, demographics, location, and presence of potential risk factors for aneurysm formation were prospectively collected. Results There were 158 female (74.5%) and 54 male (25.5%) patients whose mean age was 60.6 years (median 62 years). The most common reason for undergoing the imaging study that led to a diagnosis of the aneurysms was evaluation for nonspecific spells and symptoms related to focal cerebrovascular ischemia (43.4%), known/possible intracranial or neck pathology (24%), and headache (16%). The most common location (27%) of the aneurysm was the middle cerebral artery; the second most common (22%) was the paraclinoid internal carotid artery (excluding cavernous sinus aneurysms). Sixty-nine percent of patients were current or prior smokers, 60% had a diagnosis of hypertension, and 23% had one or more relatives with a history of intracranial aneurysms with or without subarachnoid hemorrhage. Conclusions Small incidental UIAs are more commonly diagnosed in elderly individuals during imaging performed to investigate ill-defined spells or focal cerebrovascular ischemic symptoms, or during the evaluation of known or probable unrelated intracranial/neck pathology. Hypertension, smoking, and family history of aneurysms are common in this patient population, and the presence of these risk factors has important implications for treatment recommendations. Although paraclinoid aneurysms (excluding intracavernous aneurysms) are uncommon in patients with ruptured intracranial aneurysms, this location is very common in patients with small incidental UIAs.

scholarly journals Endovascular Coiling of Aneurysm Remnants after Clipping in Patients with Follow-up

2005 ◽  
Vol 11 (1) ◽  
pp. 41-48 ◽  
Author(s):  
S. Mangiafico ◽  
M. Cellerini ◽  
G. Villa ◽  
F. Ammannati ◽  
L. Paoli ◽  
...  
Keyword(s):  
Treatment Strategy ◽  
Intracranial Aneurysms ◽  
Endovascular Embolization ◽  
Endovascular Coiling ◽  
Surgical Clipping ◽  
Anterior Circulation ◽  
Therapeutic Alternative ◽  
Relative Safety

The vast majority of intracranial aneurysms can be obliterated completely with surgical clipping. However, postoperative remnants occur in about 4 to 8% of patients who undergo postoperative angiography. Endovascular embolization has been successfully performed in patients with postoperative aneurysm remnant and it may represent a therapeutic alternative to surgical reintervention. Twelve aneurysm remnants after surgical clipping were treated with endovascular embolization using GDC. All aneurysms were located in the anterior circulation. Our experience confirms the feasibility and relative safety of this treatment strategy that may be considered a valid alternative to reintervention.

scholarly journals Headache outcomes following treatment of unruptured intracranial aneurysms: A prospective analysis

Cephalalgia ◽  
2011 ◽  
Vol 31 (10) ◽  
pp. 1082-1089 ◽  
Author(s):  
Todd J Schwedt ◽  
Robert W Gereau ◽  
Karen Frey ◽  
Evan D Kharasch
Keyword(s):  
Risk Factors ◽  
Intracranial Aneurysms ◽  
Prospective Observational Study ◽  
Prospective Analysis ◽  
Headache Frequency ◽  
Factors Associated ◽  
Aneurysm Treatment ◽  
Unruptured Intracranial Aneurysms ◽  
Potential Risk Factors ◽  
Aneurysm Coiling

Objective: To analyze headache patterns prior to and following treatment of unruptured intracranial aneurysms and identify factors associated with different headache outcomes. Methods: A prospective observational study of patients being treated for unruptured intracranial aneurysms. Headache patterns were established prior to aneurysm treatment and for 6 months following treatment. Factors associated with different headache outcomes were investigated. Results: In all patients ( n = 44), 90-day headache frequency decreased from an average of 31 days prior to aneurysm treatment to 17 days following treatment ( p < 0.001). In patients with active pretreatment headaches ( n = 28), 90-day headache frequency decreased from 49 days to 26 days ( p = 0.002). Headache frequency was reduced in 68% of patients, while 9% of patients had new or worsened headaches following aneurysm treatment. Pretreatment migraine, more severe pretreatment headaches, higher pretreatment trait anxiety, and stent-assisted aneurysm coiling were associated with a lack of headache improvement. Conclusions: The majority of patients with headaches at the time of aneurysm treatment had reductions in headache frequency during the 6 months following treatment. Potential risk factors for poor headache outcomes were identified but need to be studied further.

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