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https://www.readbyqxmd.com/read/29138975/distal-transsylvian-keyhole-approach-for-unruptured-anterior-circulation-small-aneurysms
#1
Ririko Takeda, Hiroki Kurita
BACKGROUND: To reduce complications associated with conventional pterional craniotomy, a transsylvian keyhole approach for unruptured small anterior circulation aneurysms is proposed. METHODS: A 7-cm linear scalp incision is made along the hairline, beginning at the zygoma, followed by minimal temporal muscle dissection. Two burr holes are drilled out at McCarty's point and the temporal bone, and a 3-cm equilateral triangle bone flap is made, whose apex is located above the sylvian point...
November 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29131823/prevalence-of-extracranial-carotid-artery-aneurysms-in-patients-with-an-intracranial-aneurysm
#2
V E C Pourier, C J H C M van Laarhoven, M D I Vergouwen, G J E Rinkel, Gert J de Borst
BACKGROUND AND PURPOSE: Aneurysms in various arterial beds have common risk- and genetic factors. Data on the correlation of extracranial carotid artery aneurysms (ECAA) with aneurysms in other vascular territories are lacking. We aimed to investigate the prevalence of ECAA in patients with an intracranial aneurysm (IA). METHODS: We used prospectively collected databases of consecutive patients registered at the University Medical Center Utrecht with an unruptured intracranial aneurysm (UIA) or aneurysmal Subarachnoid hemorrhage (SAH)...
2017: PloS One
https://www.readbyqxmd.com/read/29130668/-analysis-on-clinical-characteristic-and-risk-factors-of-patients-coexistence-of-cerebral-artery-stenosis-with-unruptured-intracranial-aneurysm
#3
Hai-Yan Zhao, Jin-Tao Han, Dong-Sheng Fan
OBJECTIVE: To analyze the incidence of intracranial unruptured aneurysms in patients with intracranial artery stenosis,clinical features,and investigate the risk factors for unruptured intracranial aneurysms. METHODS: Medical records from all patients performed with digital subtraction angiography (DSA) who had been treated at Peking University Third Hospital,China,from January 2012 to December 2015 were retrospectively reviewed to identify cases coexistence with cerebral artery stenosis and unruptured intracranial aneurysm...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29129762/risk-factors-for-the-rupture-of-intracranial-aneurysms-using-ct-angiography
#4
Guang-Xian Wang, Li Wen, Liu Yang, Qi-Chuang Zhang, Jin-Bo Yin, Chun-Mei Duan, Dong Zhang
PURPOSE: To study the clinical and morphological characteristics associated with risk factors for the rupture of intracranial aneurysms (IAs). METHODS: A total of 1115 consecutive patients with 1282 IAs were reviewed from August 2011 to February 2016. The patients and IAs were divided into ruptured and unruptured groups. Based on the clinical and morphologic findings, the risk factors for IA rupture were assessed using statistical methods. RESULTS: Age, hypertension, diabetes mellitus and cerebral atherosclerosis were associated with ruptured IAs...
November 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29128954/surgical-approach-to-posterior-inferior-cerebellar-artery-aneurysms
#5
Biagia La Pira, Carmelo Lucio Sturiale, Giuseppe Maria Della Pepa, Alessio Albanese
BACKGROUND: The far-lateral is a standardised approach to clip aneurysms of the posterior inferior cerebellar artery (PICA). Different variants can be adopted to manage aneurysms that differ in morphology, topography, ruptured status, cerebellar swelling and surgeon preference. METHOD: We distinguished five paradigmatic approaches aimed to manage aneurysms that are: proximal unruptured; proximal ruptured requiring posterior fossa decompression (PFD); proximal ruptured not requiring PFD; distal unruptured; distal ruptured...
November 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29114287/unruptured-internal-carotid-artery-aneurysm-associated-with-functional-pituitary-adenoma-a-true-association
#6
Guru Dutta Satyarthee, Amol Raheja
Detection of incidental intracranial aneurysm on neuroimaging can be associated with pituitary adenoma; however, such association is extremely rare. However, aneurysm with extension into the sella is extremely rare, and increases the risk of inadvertent intraoperative rupture, if trans-sphenoidal decompression is attempted either using endoscopic or microscopic surgical approach. Hanak et al. in a literature review of intrasellar noniatrogenic aneurysms over PubMed search in 2012 could only collect 31 studies, of which only eight cases had pituitary adenoma associated with aneurysm extending into sella...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29114276/predictive-value-of-motor-evoked-potential-monitoring-during-surgery-of-unruptured-anterior-circulation-cerebral-aneurysms
#7
Yasuhiro Yamada, Yoko Kato, Mohsen Nouri, Tsukasa Ganaha, Motoki Oheda, Kohei Ishihara, Shigeta Moriya, Akiyo Sadato, Joji Inamasu, Yuichi Hirose
Objective and Background: Surgery of unruptured aneurysms is always a great challenge to neurovascular surgeons because no postoperative neurological deficits should be expected postoperatively as the patients are fully asymptomatic before the surgery. Here, we present our experience with selective motor evoked potential (MEP) monitoring of our patients in a 2-year time window. Patients and Methods: From 2012 to 2014, 27 patients with unruptured intracranial aneurysms were operated in our institute with the help of MEP monitoring...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29107725/proximal-stenosis-is-associated-with-rupture-status-in-middle-cerebral-artery-aneurysms
#8
Alexei Antonov, Kenichi Kono, Kilian Greim-Kuczewski, James E Hippelheuser, Alexandra Lauric, Adel M Malek
BACKGROUND: Hemodynamic factors impact cerebral aneurysm development and progression. Parent vessel architectural features, such as caliber, curvature and angle can affect downstream pressure and shear stress. OBJECTIVE: Investigate the association between proximal parent vessel stenosis and aneurysm rupture status at the middle cerebral artery (MCA) bifurcation. METHODS: Catheter 3D rotational angiographic datasets from 69 Japanese patients with MCA aneurysms (58 unruptured/11 ruptured) were analyzed...
October 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29103103/heroin-use-is-associated-with-ruptured-saccular-aneurysms
#9
Anil Can, Victor M Castro, Yildirim H Ozdemir, Sarajune Dagen, Dmitriy Dligach, Sean Finan, Sheng Yu, Vivian Gainer, Nancy A Shadick, Guergana Savova, Shawn Murphy, Tianxi Cai, Scott T Weiss, Rose Du
While cocaine use is thought to be associated with aneurysmal rupture, it is not known whether heroin use increases the risk of rupture in patients with non-mycotic saccular aneurysms. Our goal was to investigate the association between heroin and cocaine use and the rupture of saccular non-mycotic aneurysms. The medical records of 4701 patients with 6411 intracranial aneurysms, including 1201 prospective patients, diagnosed at the Brigham and Women's Hospital and Massachusetts General Hospital between 1990 and 2016 were reviewed and analyzed...
November 4, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/29102265/does-elevated-wall-tension-cause-aortic-aneurysm-rupture-investigation-using-a-subject-specific-heterogeneous-model
#10
Timothy K Chung, Erasmo S da Silva, Suresh M L Raghavan
OBJECTIVE: To investigate whether peak wall tension in abdominal aortic aneurysm occurs at the site of rupture to test for a causative relationship. METHODS: Four ruptured and nine unruptured AAA were harvested whole from cadavers, followed by regional measurements of wall thickness, elastic parameters and failure tension. Finite element models were developed with subject-specific load-free AAA morphology and heterogeneous properties interpolated using a geodesic distance weighted approach from the measurements...
October 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29099302/rupture-prediction-of-intracranial-aneurysms-a-nationwide-matched-case-control-study-of-hemodynamics-at-the-time-of-diagnosis
#11
Torbjørn Øygard Skodvin, Øyvind Evju, Christian A Helland, Jørgen Gjernes Isaksen
OBJECTIVE Hemodynamic rupture predictors in intracranial aneurysms (IAs) must be investigated in prerupture aneurysms, because rupture might significantly alter aneurysm hemodynamics. Both clinical and aneurysmal factors influence hemodynamics, possibly confounding results in unmatched patient materials. The authors aimed to identify hemodynamic variables at the time of diagnosis that could be associated with IA rupture. METHODS A nationwide matched case-control study of IA hemodynamics at the time of diagnosis was performed...
November 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29093326/contrast-induced-encephalopathy-following-embolization-of-intracranial-aneurysms-in-hemodialysis-patients
#12
Noriaki Matsubara, Takashi Izumi, Shigeru Miyachi, Keisuke Ota, Toshihiko Wakabayashi
Contrast-induced encephalopathy is a very rare complication associated with endovascular treatment of intracranial aneurysms. Patients with renal dysfunction may be prone to developing contrast medium neurotoxicity as a result of delayed elimination of the contrast medium in renal metabolism. This article focuses on our experience with contrast-induced encephalopathy in patients with end-stage renal disease requiring hemodialysis. The authors retrospectively reviewed five patients diagnosed with contrast-induced encephalopathy who underwent aneurysm coil embolization at their institution from January 2006 to December 2015...
October 31, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29077743/proposing-a-validated-clinical-app-predicting-hospitalization-cost-for-extracranial-intracranial-bypass-surgery
#13
Hai Sun, Piyush Kalakoti, Kanika Sharma, Jai Deep Thakur, Rimal H Dossani, Devi Prasad Patra, Kevin Phan, Hesam Akbarian-Tefaghi, Frank Farokhi, Christina Notarianni, Bharat Guthikonda, Anil Nanda
OBJECT: United States healthcare reforms are focused on curtailing rising expenditures. In neurosurgical domain, limited or no data exists identifying potential modifiable targets associated with high-hospitalization cost for cerebrovascular procedures such as extracranial-intracranial (ECIC) bypass. Our study objective was to develop a predictive model of initial cost for patients undergoing bypass surgery. METHODS: In an observational cohort study, we analyzed patients registered in the Nationwide Inpatient Sample (2002-2011) that underwent ECIC bypass...
2017: PloS One
https://www.readbyqxmd.com/read/29076778/subarachnoid-hemorrhage-after-surgical-treatment-of-unruptured-intracranial-aneurysms
#14
Hidetoshi Matsukawa, Hiroyasu Kamiyama, Toshiyuki Tsuboi, Kosumo Noda, Nakao Ota, Shiro Miyata, Takanori Miyazaki, Yu Kinoshita, Norihiro Saito, Osamu Takahashi, Rihee Takeda, Sadahisa Tokuda, Rokuya Tanikawa
OBJECTIVE Only 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...
October 27, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29076614/the-predictive-role-of-health-promoting-behaviors-and-perceived-stress-in-aneurysmal-rupture
#15
Mi-Sun Lee, Chang G Park, Tonda L Hughes, Sang-Eun Jun, Kum Whang, Nahyun Kim
AIM AND OBJECTIVE: We examined the roles of two modifiable factors-health-promoting behaviors (HPB) and perceived stress-in predicting aneurysmal rupture. BACKGROUND: Unruptured intracranial aneurysm (UIA) detection produces significant stress and anxiety in patients because of the risk of rupture. Compared to non-modifiable risk factors for rupture such as age, gender, and aneurysm size/location, less attention has been given to modifiable risk factors. Two modifiable factors, HPBs and perceived stress, have hardly been examined as potential predictors of rupture...
October 27, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29053070/relationship-between-patient-safety-indicator-events-and-comprehensive-stroke-center-volume-status-in-the-treatment-of-unruptured-cerebral-aneurysms
#16
Chad W Washington, L Ian Taylor, Robert J Dambrino, Paul R Clark, Gregory J Zipfel
OBJECTIVE The Agency of Healthcare Research and Quality (AHRQ) has defined Patient Safety Indicators (PSIs) for assessments in quality of inpatient care. The hypothesis of this study is that, in the treatment of unruptured cerebral aneurysms (UCAs), PSI events are less likely to occur in hospitals meeting the volume thresholds defined by The Joint Commission for Comprehensive Stroke Center (CSC) certification. METHODS Using the 2002-2011 National (Nationwide) Inpatient Sample, patients treated electively for a nonruptured cerebral aneurysm were selected...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29051205/two-center-experience-in-the-endovascular-treatment-of-ruptured-and-unruptured-intracranial-aneurysms-using-the-web-device-a-retrospective-analysis
#17
J Popielski, A Berlis, W Weber, S Fischer
BACKGROUND AND PURPOSE: The safety and efficacy of the Woven EndoBridge (WEB) device for the treatment of cerebral aneurysms has been investigated in several studies. Our objective was to report the experience of 2 neurovascular centers with the WEB device in the treatment of broad-based intracranial aneurysms, including the technical feasibility and safety as well as short- and midterm angiographic and clinical follow-up-results. MATERIALS AND METHODS: We performed a retrospective analysis of all ruptured and unruptured aneurysms treated with a WEB device (WEB Single-Layer and Single-Layer Sphere) between August 2014 and February 2017...
October 19, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29046469/-a-rare-case-of-ruptured-unruptured-miniature-aneurysms-originating-from-the-infundibular-dilatation-of-the-callosomarginal-artery-branching-from-the-infracallosal-a2-segment-of-the-azygos-anterior-cerebral-artery
#18
Shota Yoshimura, Chika Somagawa, Kei Satoh, Yutaka Fukuda, Takeshi Hiu, Tomonori Ono, Ryujiro Ushijima, Keisuke Toda, Keisuke Tsutsumi
We report the first case of two de novo miniature aneurysms(ruptured/unruptured)emerging from the infundibular dilatation(ID)of the callosomarginal artery, which branches from the infracallosal(A2)segment of the azygos anterior cerebral artery(AACA), in a 36-year-old woman. The patient had previously been diagnosed with a miniature, unruptured aneurysm, occurring in the A2 segment of the AACA, detected by CT angiography(CTA)at another hospital two years ago, and had been followed up with MR angiography(MRA)every 6 months...
October 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29040765/flow-diversion-for-the-treatment-of-an-unruptured-paraclinoid-carotid-artery-aneurysm
#19
(no author information available yet)
No abstract text is available yet for this article.
October 11, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29031554/unruptured-intracranial-aneurysms-it-is-not-a-bomb
#20
EDITORIAL
L Pierot, M Gawlitza, S Soize
No abstract text is available yet for this article.
November 2017: Revue Neurologique
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