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intracranial aneurysm

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https://www.readbyqxmd.com/read/28640793/intraoperative-computed-tomography-ct-for-treating-giant-carotid-intracavernous-aneurysms
#1
Zhe Xue, Fuyu Wang, Zhenghui Sun, Hui Zhang, Chen Wu, Dongsheng Kong, Bainan Xu
BACKGROUND Giant carotid intracavernous aneurysm refers to those lesions larger than 2.5 cm and derived from a cavernous segment, accounting for about 30% of all intracranial tumors. Dynamic CT perfusion imaging (PCT) is a common method recently employed to evaluate cerebral perfusion. This study investigated the efficacy and clinical application of intraoperative CT in the surgery for giant symptomatic carotid intracavernous aneurysm. MATERIAL AND METHODS A retrospective analysis was performed on 23 cases with giant symptomatic carotid intracavernous aneurysm...
June 22, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28637249/bypass-surgery-for-complex-intracranial-aneurysms-15-years-of-experience-at-a-single-institution-and-review-of-pertinent-literature
#2
Seung Pil Ban, Won-Sang Cho, Jeong Eun Kim, Chang Hyeun Kim, Jae Seung Bang, Young-Je Son, Hyun-Seung Kang, O-Ki Kwon, Chang Wan Oh, Moon Hee Han
BACKGROUND: Bypass surgery is a treatment option for complex intracranial aneurysms. OBJECTIVE: To determine the utility of bypass surgery for the treatment of complex intracranial aneurysms and to review the literature on this topic. METHODS: Sixty-two patients were included in this retrospective study. Unruptured aneurysms were dominant (80.6%), and the internal carotid artery was the most common location of the aneurysm (56.4%), followed by the middle cerebral artery (21...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28637115/ruptured-carotid-ophthalmic-aneurysm-treatment-a-non-inferiority-meta-analysis-comparing-endovascular-coiling-and-surgical-clipping
#3
Alberto Falk Delgado, Tommy Andersson, Anna Falk Delgado
INTRODUCTION: Aneurysms of the carotid-ophthalmic segment are relatively rare, comprising only five percent of all intracranial aneurysms. There is no consensus regarding the optimal management for ruptured carotid-ophthalmic aneurysms, whether endovascular coiling or surgical clipping provide the most favourable patient outcome. The aim of this meta-analysis is to analyse these two treatment modalities for ruptured carotid-ophthalmic aneurysms with respect to independent clinical outcome...
March 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28634280/surgical-clipping-or-endovascular-coiling-for-unruptured-intracranial-aneurysms-a-pragmatic-randomised-trial
#4
Tim E Darsaut, J Max Findlay, Elsa Magro, Marc Kotowski, Daniel Roy, Alain Weill, Michel W Bojanowski, Chiraz Chaalala, Daniela Iancu, Howard Lesiuk, John Sinclair, Felix Scholtes, Didier Martin, Michael M Chow, Cian J O'Kelly, John H Wong, Ken Butcher, Allan J Fox, Adam S Arthur, Francois Guilbert, Lu Tian, Miguel Chagnon, Suzanne Nolet, Guylaine Gevry, Jean Raymond
BACKGROUND: Unruptured intracranial aneurysms (UIAs) are increasingly diagnosed and are commonly treated using endovascular treatment or microsurgical clipping. The safety and efficacy of treatments have not been compared in a randomised trial. How to treat patients with UIAs suitable for both options remains unknown. METHODS: We randomly allocated clipping or coiling to patients with one or more 3-25 mm UIAs judged treatable both ways. The primary outcome was treatment failure, defined as: initial failure of aneurysm treatment, intracranial haemorrhage or residual aneurysm on 1-year imaging...
June 20, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28633394/diagnostic-accuracy-of-somatosensory-evoked-potential-monitoring-in-evaluating-neurological-complications-during-endovascular-aneurysm-treatment
#5
William J Ares, Ramesh M Grandhi, David M Panczykowski, Gregory M Weiner, Parthasarathy Thirumala, Miguel E Habeych, Donald J Crammond, Michael B Horowitz, Brian T Jankowitz, Ashutosh Jadhav, Tudor G Jovin, Andrew F Ducruet, Jeffrey Balzer
BACKGROUND: Somatosensory evoked potential (SSEP) monitoring is used extensively for early detection and prevention of neurological complications in patients undergoing many different neurosurgical procedures. However, the predictive ability of SSEP monitoring during endovascular treatment of cerebral aneurysms is not well detailed. OBJECTIVE: To evaluate the performance of intraoperative SSEP in the prediction postprocedural neurological deficits (PPNDs) after coil embolization of intracranial aneurysms...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28630262/dipeptidyl-peptidase-4-inhibitor-anagliptin-prevents-intracranial-aneurysm-growth-by-suppressing-macrophage-infiltration-and-activation
#6
Taichi Ikedo, Manabu Minami, Hiroharu Kataoka, Kosuke Hayashi, Manabu Nagata, Risako Fujikawa, Sei Higuchi, Mika Yasui, Tomohiro Aoki, Miyuki Fukuda, Masayuki Yokode, Susumu Miyamoto
BACKGROUND: Chronic inflammation plays a key role in the pathogenesis of intracranial aneurysms (IAs). DPP-4 (dipeptidyl peptidase-4) inhibitors have anti-inflammatory effects, including suppressing macrophage infiltration, in various inflammatory models. We examined whether a DPP-4 inhibitor, anagliptin, could suppress the growth of IAs in a rodent aneurysm model. METHODS AND RESULTS: IAs were surgically induced in 7-week-old male Sprague Dawley rats, followed by oral administration of 300 mg/kg anagliptin...
June 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28628430/autosomal-dominant-polycystic-kidney-disease-and-the-heart-and-brain
#7
REVIEW
Vinod Krishnappa, Poornima Vinod, Divya Deverakonda, Rupesh Raina
Autosomal dominant polycystic kidney disease (ADPKD) has numerous systemic manifestations and complications. This article gives an overview of hypertension, cardiac complications, and intracranial aneurysms in ADPKD, their pathophysiology, and recent developments in their management.
June 2017: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/28627088/astrogliosis-and-impaired-aquaporin-4-and-dystrophin-systems-in-idiopathic-normal-pressure-hydrocephalus
#8
Per Kristian Eide, Hans-Arne Hansson
AIMS: Idiopathic normal pressure hydrocephalus (iNPH) is one subtype of dementia that may improve following drainage of cerebrospinal fluid (CSF). This prospective observational study explored whether expression of the water channel aquaporin-4 (AQP4) and the anchoring molecule dystrophin 71 (Dp71) are altered at astrocytic perivascular endfeet and in adjacent neuropil of iNPH patient. Observations were related to measurements of pulsatile and static intracranial pressure (ICP). METHODS: The study included iNPH patients undergoing overnight monitoring of the pulsatile/static ICP, in whom a biopsy was taken from the frontal cerebral cortex during placement of the ICP sensor...
June 19, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28626262/a-case-of-anterior-communicating-artery-aneurysm-successfully-treated-after-a-stent-migration-during-stent-assisted-endovascular-coil-embolization
#9
Tomotaka Ohshima, Andrey Belayev, Shunsaku Goto, Taiki Yamamoto, Kojiro Ishikawa, Yoko Kato
Stent migration is a complication associated with endovascular coil embolization of intracranial aneurysms. We report a case of anterior communicating artery (ACoA) aneurysm that was successfully treated after stent migration during endovascular coil embolization without retrieval of the stent. A 47-year-old man presented with sudden onset severe headache. Patient was noted to have subarachnoid hemorrhage from a ruptured ACoA aneurysm. Emergency endovascular coil embolization was performed. The second coil embolization was scheduled for the neck-remnant portion with a stent after 16 days from the initial operation...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28625908/-on-the-spot-the-use-of-4d-cta-to-differentiate-a-true-spot-sign-from-a-distal-intracranial-aneurysm
#10
Johanna P de Jong, Leo Kluijtmans, Martinus J van Amerongen, Mathias Prokop, Hieronymus D Boogaarts, Frederick J A Meijer
BACKGROUND: Spontaneous intracerebral hemorrhage may arise from underlying abnormalities including aneurysms. Computed tomography angiography (CTA) is widely used for the detection of possible underlying causes, which is important since it may have immediate therapeutic consequences. In addition, CTA is used to detect the so-called "spot sign", indicating active hemorrhage which carries a worse prognosis. CTA is, however, a snapshot in time. Four-dimensional CTA (4D-CTA) is a dynamic type of imaging and has emerged as a valuable imaging technique for different neurovascular disorders...
June 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28625904/subarachnoid-hemorrhage-due-to-distal-superior-cerebellar-artery-dissection-in-neurofibromatosis-type-1
#11
Yuki Takeshima, Yuki Ohmori, Takashi Nakagawa, Yasuyuki Kaku, Jun-Ichi Kuratsu, Shigetoshi Yano
BACKGROUND: Neurofibromatosis type 1 (NF1) is a rare disease with an incidence of one in every 3000 births. Numerous studies have focused on the main function of NF1 as a tumor suppressor, while few have examined the cerebrovascular abnormalities observed in patients with NF1. It is worth noting that intracranial aneurysms are uncommon in this condition. CASE DESCRIPTION: We report a case of NF1 with a dissection of the distal segment of the superior cerebellar artery...
June 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28625587/a-rabbit-model-of-aneurysmal-subarachnoid-hemorrhage-by-ear-central-artery-suprasellar-cistern-shunt
#12
Jing Lu, Fuxiang Chen, Bing Cai, Fan Chen, Dezhi Kang
Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening hemorrhagic cerebrovascular disease. The concept of early brain injury (EBI), induced by sharply increased intracranial pressure (ICP) and low cerebral perfusion pressure (CPP) with cerebral global ischemia following aneurysm rupture, has been increasingly accepted. However, EBI has not been well studied partly due to lack of an ideal animal model. The purpose of this study was to establish a new aSAH model which can mimic the pathophysiological damage of EBI...
June 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28622071/survival-in-out-of-hospital-rapid-sequence-intubation-of-non-traumatic-brain-pathologies
#13
Pieter Francsois Fouche, Paul Andrew Jennings, Karen Smith, Malcolm Boyle, Gabriel Blecher, Jonathan Knott, Mani Raji, Pamela Rosengarten, Michael Roberto Augello, Stephen Bernard
INTRODUCTION: Rapid sequence intubation (RSI) is not only used in traumatic brain injuries in the out-of-hospital setting, but also for non-traumatic brain pathologies (NTBP) such as brain tumors, meningitis, encephalitis, hypoxic/anoxic brain injury, stroke, arteriovenous malformations, tumors, aneurysms, brain hemorrhage, as well as brain injury due to diabetes, seizures and toxicity, metabolic conditions, and alcohol and drug overdose. Previous research suggests that RSI is common in non-traumatic coma, but with an unknown prevalence of NTBP in those that receive RSI...
June 16, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28619497/long-term-functional-outcome-of-symptomatic-unruptured-intracranial-aneurysms-in-an-interdisciplinary-treatment-concept
#14
M Kunz, F Dorn, T Greve, V Stoecklein, J C Tonn, H Brückmann, Ch Schichor
OBJECTIVE: In symptomatic unruptured intracranial aneurysms (UIA), data on long-term functional outcome are sparse in the literature, even in the light of modern interdisciplinary treatment decisions. We therefore analysed our in-house database for prognostic factors and long-term outcome of neurological symptoms after microsurgical/endovascular treatment. METHODS: Patients treated between 2000 and 2016 after interdisciplinary vascular board decision were included...
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28619494/role-of-hemodynamics-forces-in-unruptured-intracranial-aneurysms-an-overview-of-a-complex-scenario
#15
REVIEW
Marcello Longo, Francesca Granata, Sergio Racchiusa, Enricomaria Mormina, Grasso Giovanni, Giuseppe Maria Longo, Giada Garufi, Francesco M Salpietro, Concetta Alafaci
BACKGROUND: The understanding of unruptured intracranial aneurysms (IAs) natural history has always played a critical role in pre-surgical or endovascular planning, in order to avoid possible fatal events. Size, shape, morphology and location are known risk factors for aneurysm's rupture, but morphologic parameters alone, may not be sufficient in order to perform a proper rupture risk stratification. METHODS: We performed a systematic PUBMED search and focused on hemodynamics forces which may influence aneurysmal initiation, growth and rupture...
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28619493/dynamic-4d-cta-for-neuro-vascular-pathologies-a-case-series
#16
Ahmed Alnemari, Tarek R Mansour, Mohamad Bazerbashi, Mark Buehler, Jason Schroeder, Daniel Gaudin
BACKGROUND: The aim of this article is to illustrate, summarize, and review the multifaceted application of four-dimensional computed tomography angiography (4D-CTA) in the characterization and diagnosis of various cerebrovascular and tumor-associated vascular pathologies through the presentation of clinical cases including acute/chronic stroke, arteriovenous malformations, aneurysm, moya-moya disease, and the hypervascularity associated with a tumor and its relationship to pre-operative embolization...
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28619490/use-of-simple-neck-extension-to-improve-guiding-catheter-accessibility-in-tortuous-cervical-internal-carotid-artery-for-endovascular-embolization-of-intracranial-aneurysm-a-technical-note
#17
Megumu Takata, Hitoshi Fukuda, Masanori Kinosada, Kosuke Miyake, Kenichi Murao
No abstract text is available yet for this article.
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28616823/population-pharmacokinetics-of-combined-intravenous-and-local-intrathecal-administration-of-meropenem-in-aneurysm-patients-with-suspected-intracranial-infections-after-craniotomy
#18
Xingang Li, Shusen Sun, Qiang Wang, Zhigang Zhao
BACKGROUND AND OBJECTIVE: For patients with intracranial infection, local intrathecal administration of meropenem may be a useful method to obtain a sufficient drug concentration in the cerebral spinal fluid (CSF). However, a large inter-individual variability may pose treatment efficacy at risk. This study aimed to identify factors affecting drug concentration in the CSF using population pharmacokinetics method. METHODS: After craniotomy, aneurysm patients with an indwelling lumbar cistern drainage tube who received a combined intravenous and intrathecal administration of meropenem for the treatment of suspected intracranial infection were enrolled...
June 14, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28615425/epilepsy-associated-long-term-mortality-after-aneurysmal-subarachnoid-hemorrhage
#19
Jukka Huttunen, Antti Lindgren, Mitja I Kurki, Terhi Huttunen, Juhana Frösen, Timo Koivisto, Mikael von Und Zu Fraunberg, Arto Immonen, Juha E Jääskeläinen, Reetta Kälviäinen
OBJECTIVE: To elucidate the epilepsy-associated causes of death and subsequent excess long-term mortality among 12-month survivors of subarachnoid hemorrhage from saccular intracranial aneurysm (SIA-SAH). METHODS: The Kuopio SIA Database (kuopioneurosurgery.fi) includes all SIA-SAH patients admitted to the Kuopio University Hospital from its defined catchment population in Eastern Finland. The study cohort consists of 779 patients, admitted from 1995 to 2007, who were alive at 12 months after SIA-SAH...
June 14, 2017: Neurology
https://www.readbyqxmd.com/read/28612004/extracranial-aneurysms-in-2-patients-with-autosomal-recessive-polycystic-kidney-disease
#20
Daniel S Elchediak, Anne Marie Cahill, Emma E Furth, Bernard S Kaplan, Erum A Hartung
Unlike autosomal dominant polycystic kidney disease (ADPKD), autosomal recessive polycystic kidney disease (ARPKD) is not generally known to be associated with vascular abnormalities. Only 4 cases of ARPKD patients with intracranial aneurysms have been reported previously. We present 2 ARPKD patients with extracranial vascular abnormalities: a young man with infrarenal aortic and iliac artery aneurysms complicated by dissection and a teenage girl with multiple splenic and gastric artery aneurysms and arterial vascular malformations...
May 2017: Case Reports in Nephrology and Dialysis
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