keyword
MENU ▼
Read by QxMD icon Read
search

Cerebral Aneurysms

keyword
https://www.readbyqxmd.com/read/28327980/frontal-sinus-breach-during-routine-frontal-craniotomy-significantly-increases-risk-of-surgical-site-infection-10-year-retrospective-analysis
#1
Joseph R Linzey, Thomas J Wilson, Stephen E Sullivan, B Gregory Thompson, Aditya S Pandey
BACKGROUND: Frontotemporal craniotomies are commonly performed for a variety of neurosurgical pathologies. Infections related to craniotomies cause significant morbidity. We hypothesized that the risk of cranial surgical site infections (SSIs) may be increased in patients whose frontal sinuses are breached during craniotomy. OBJECTIVE: To compare the rate of cranial SSIs in patients undergoing frontotemporal craniotomies with and without frontal sinus breach (FSB)...
March 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327912/long-term-neurological-outcome-and-quality-of-life-after-world-federation-of-neurosurgical-societies-grades-iv-and-v-aneurysmal-subarachnoid-hemorrhage-in-an-interdisciplinary-treatment-concept
#2
Christoph Schwartz, Thomas Pfefferkorn, Caroline Ebrahimi, Caroline Ottomeyer, Gunther Fesl, Andreas Bender, Andreas Straube, Hans-Walter Pfister, Suzette Heck, Jörg-Christian Tonn, Christian Schichor
BACKGROUND: Detailed data on long-term functional outcome of patients with World Federation of Neurosurgical Societies (WFNS) grades IV and V aneurysmal subarachnoid hemorrhages (aSAH) are still scarce. OBJECTIVE: Assessment of long-term outcome of WFNS IV and V aSAH patients. METHODS: Functional outcome and quality of life were assessed by the modified Rankin scale (mRS) and the 36-item short-form health survey in consecutively treated aSAH WFNS IV and V patients between 2005 and 2010...
February 2, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327554/ppar%C3%AE-%C3%AE-a-novel-regulator-for-vascular-smooth-muscle-cells-phenotypic-modulation-and-vascular-remodeling-after-subarachnoid-hemorrhage-in-rats
#3
Hongrong Zhang, Li Jiang, Zongduo Guo, Jianjun Zhong, Jingchuan Wu, Junchi He, Han Liu, Zhaohui He, Haitao Wu, Chongjie Cheng, Xiaochuan Sun
Cerebral vascular smooth muscle cell (VSMC) phenotypic switch is involved in the pathophysiology of vascular injury after aneurysmal subarachnoid hemorrhage (aSAH), whereas the molecular mechanism underlying it remains largely speculative. Peroxisome proliferator-activated receptor β/δ (PPARβ/δ) has been implicated to modulate the vascular cells proliferation and vascular homeostasis. In the present study, we investigated the potential role of PPARβ/δ in VSMC phenotypic switch following SAH. Activation of PPARβ/δ by GW0742 and adenoviruses PPARβ/δ (Ad-PPARβ/δ) significantly inhibited hemoglobin-induced VSMC phenotypic switch...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325888/factors-associated-with-clinical-outcomes-in-patients-with-primary-intraventricular-hemorrhage
#4
Sang-Hoon Lee, Kyung-Jae Park, Dong-Hyuk Park, Shin-Hyuk Kang, Jung-Yul Park, Yong-Gu Chung
BACKGROUND Primary intraventricular hemorrhage (PIVH) is an uncommon type of intracerebral hemorrhage. Owing to its rarity, the clinical and radiological factors affecting outcomes in patients with PIVH have not been widely studied. MATERIAL AND METHODS We retrospectively reviewed 112 patients (mean age 53 years) treated for PIVH at our institution from January 2004 to December 2014. Clinical and radiological parameters were analyzed 3 months after initial presentation to identify factors associated with clinical outcomes, as assessed by the Glasgow Outcome Scale (favorable ≥4, unfavorable <4)...
March 22, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28323187/activation-of-cytotoxic-natural-killer-cells-after-aneurysmal-subarachnoid-haemorrhage
#5
Daniel Spitzer, Nina Johanna Spitzer, Monika Deininger, Christian Rainer Wirtz, Ralph König, Timo Burster, Thomas Kapapa
OBJECTIVE: Cell-mediated inflammation is critical in development of cerebrovascular complications after aneurysmal subarachnoid haemorrhage (aSAH). We analysed the course for activated CD16(bright)CD56(dim) cytotoxic NKCSF cells (NK) in cerebrospinal fluid (CSF) of 15 patients. METHODS: Patients were classified by occurrence of cerebral vasospasm and delayed cerebral ischemia. NK were monitored by flow cytometry between day 1 and 14 after haemorrhage. RESULTS: 12 (80%) patients developed CV with a mean day of detection at 3...
March 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28323184/associations-of-endothelin-polymorphisms-and-aneurysm-size-at-the-time-of-rupture
#6
Philipp Hendrix, Paul M Foreman, Robert M Starke, Mark R Harrigan, Winfield S Fisher, Nilesh A Vyas, Robert H Lipsky, Minkuan Lin, Beverly C Walters, R Shane Tubbs, Mohammadali M Shoja, Jean-Francois Pittet, Mali Mathru, Christoph J Griessenauer
BACKGROUND: and Purpose: Aneurysm size is an important risk factor for aneurysm rupture. The pathophysiological mechanisms underlying aneurysm growth remain poorly understood. Endothelin signaling is critical for cerebrovascular blood flow regulation. The influence of endothelin single nucleotide polymorphisms (SNPs) on aneurysm size at the time of rupture has not been previously investigated. METHODS: Eight common endothelin SNPs were assessed using blood samples from aneurysmal subarachnoid hemorrhage (aSAH) patients enrolled in the CARAS (Cerebral Aneurysm Renin Angiotensin System) study...
March 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28323182/treatment-of-large-and-giant-middle-cerebral-artery-aneurysms-risk-factors-for-unfavorable-outcomes
#7
Wonhyoung Park, Jaewoo Chung, Jae Sung Ahn, Jung Cheol Park, Byung Duk Kwun
OBJECTIVE: This study aimed to assess the clinical and radiological outcomes after neurosurgical treatment of large and giant aneurysms of the middle cerebral artery (MCA). In addition, we aimed to identify risk factors for unfavorable outcomes. METHODS: This retrospective study included 105 patients with 106 large or giant MCA aneurysms treated with neurosurgical methods, including microsurgery and endovascular treatment, over a 15-year period. RESULTS: The mean aneurysm size was 15...
March 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28322077/enteral-nutrition-increases-interstitial-brain-glucose-levels-in-poor-grade-subarachnoid-hemorrhage-patients
#8
Mario Kofler, Alois J Schiefecker, Ronny Beer, Maxime Gaasch, Paul Rhomberg, John Stover, Bettina Pfausler, Claudius Thomé, Erich Schmutzhard, Raimund Helbok
Low brain tissue glucose levels after acute brain injury are associated with poor outcome. Whether enteral nutrition (EN) reliably increases cerebral glucose levels remains unclear. In this retrospective analysis of prospectively collected observational data, we investigate the effect of EN on brain metabolism in 17 poor-grade subarachnoid hemorrhage (SAH) patients undergoing cerebral microdialysis (CMD) monitoring. CMD-values were obtained hourly. A nutritional intervention was defined as the clinical routine administration of EN without supplemental parenteral nutrition...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28320123/relationship-of-the-angle-between-the-a1-and-a2-segments-of-the-anterior-cerebral-artery-with-formation-and-rupture-of-anterior-communicating-artery-aneurysm
#9
Jingya Ye, Peidong Zheng, Muhammad Hassan, Shengnan Jiang, Jiesheng Zheng
PURPOSE: To measure the angle between A1 and A2 segments of the anterior cerebral artery and analyze the relationship of this angle with the formation and rupture of anterior communicating artery aneurysm (ACoAA). METHODS: Patients with ACoAA (n=64) and with non-ACoAA (n=187) randomly chosen were included. The A1-A2 segment angles were measured using multislice spiral computed tomography angiography. The angular dimensions and differences were recorded and compared between the ACoAA and non-ACoAA groups and the ruptured (n=23) and unruptured group (n=41)...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319954/comparison-of-initial-vasopressors-used-for-delayed-cerebral-ischemia-after-aneurysmal-subarachnoid-hemorrhage
#10
Bhaskar Roy, Louise D McCullough, Rajat Dhar, James Grady, Yu-Bo Wang, Robert J Brown
BACKGROUND: The main reason for morbidity after aneurysmal subarachnoid hemorrhage (aSAH) is delayed cerebral ischemia (DCI). The mainstay of medical therapy for treating DCI is induced hypertension with vasopressors to restore cerebral perfusion. Both phenylephrine (PE) and norepinephrine (NE) are commonly used for induced hypertension, but the impact of the initial choice of vasopressor on the efficacy, adverse effects, or outcome after hemodynamic therapy for DCI is unknown. METHODS: Sixty-three patients with aSAH between January 2012 and October 2014, who developed DCI (defined as new focal deficit or decline in Glasgow Coma Score) and in which PE (n = 45) or NE (n = 18) treatment was initiated were evaluated in this retrospective study...
March 21, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28316867/bench-top-comparison-of-physical-properties-of-4-commercially-available-self-expanding-intracranial-stents
#11
Su-Hee Cho, Won-Il Jo, Ye-Eun Jo, Ku Hyun Yang, Jung Cheol Park, Deok Hee Lee
PURPOSE: To better understand the performance of four commercially available neurovascular stents in intracranial aneurysm embolization, the stents were compared in terms of their basic morphological and mechanical properties. MATERIALS AND METHODS: Four different types of stents that are currently being used for cerebral aneurysm embolization were prepared (two stents per type). Two were laser-cut stents (Neuroform and Enterprise) and two were braided from a single nitinol wire (LEO and LVIS stents)...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28304204/changes-in-contrast-transit-times-on-digital-subtraction-angiography-post-pipeline-embolization-device-deployment
#12
Ahmed E Hussein, Andreas Linninger, Sophia F Shakur, Fady T Charbel, Chih-Yang Hsu, Fady T Charbel, Ali Alaraj
It is postulated that hemodynamic changes occur in the distal vascular bed post-deployment of Pipeline Embolization Devices (PEDs). In this paper, we evaluate changes in the contrast transit times (TTs) on digital subtraction angiography (DSA) post-PED interventions. DSA films were analyzed using custom-made software for the time-density relationship at baseline and compared to post-PED deployment. All analyses were performed within the middle cerebral artery (MCA) M1 segment. Analyses included TT10%-100% (time needed for the contrast to change from 10% image intensity to 100%), TT100%-10%, and TT25%-25%...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28303205/aneurysm-of-azygos-anterior-cerebral-artery-associated-with-falcine-meningioma-case-report-and-review-of-the-literature
#13
Lucas C Meguins, Raquel C T Hidalgo, Antônio R Spotti, Dionei F de Morais
BACKGROUND: The azygos anterior cerebral artery (ACA) is an uncommon intracranial vascular anomaly of the circle of Willis. Identification of aneurysm from azygos ACA with anterior falcine meningioma is an extremely rare association. The aim of the present study is to report the case of an adult female with a ruptured aneurysm from azygos ACA in association with an anterior falcine meningioma. CASE DESCRIPTION: A 65-year-old female was admitted in the Emergency Department reporting sudden onset of severe headache...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28298037/impact-of-bifurcation-angle-and-inflow-coefficient-on-the-rupture-risk-of-bifurcation-type-basilar-artery-tip-aneurysms
#14
Sherif Rashad, Shin-Ichiro Sugiyama, Kuniyasu Niizuma, Kenichi Sato, Hidenori Endo, Shunsuke Omodaka, Yasushi Matsumoto, Miki Fujimura, Teiji Tominaga
OBJECTIVE Risk factors for aneurysm rupture have been extensively studied, with several factors showing significant correlations with rupture status. Several studies have shown that aneurysm shape and hemodynamics change after rupture. In the present study the authors investigated a static factor, the bifurcation angle, which does not change after rupture, to understand its effect on aneurysm rupture risk and hemodynamics. METHODS A hospital database was retrospectively reviewed to identify patients with cerebral aneurysms treated surgically or endovascularly in the period between 2008 and 2015...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28298035/effect-of-intrathecal-milrinone-injection-via-lumbar-catheter-on-delayed-cerebral-ischemia-after-aneurysmal-subarachnoid-hemorrhage
#15
Masaomi Koyanagi, Hitoshi Fukuda, Benjamin Lo, Minami Uezato, Yoshitaka Kurosaki, Nobutake Sadamasa, Akira Handa, Masaki Chin, Sen Yamagata
OBJECTIVE Delayed cerebral ischemia (DCI) is an important complication after aneurysmal subarachnoid hemorrhage (aSAH). Although intrathecal milrinone injection via lumbar catheter to prevent DCI has been previously reported to be safe and feasible, its effectiveness remains unknown. The goal of this study was to evaluate whether intrathecal milrinone injection treatment after aSAH significantly reduced the incidence of DCI. METHODS The prospectively maintained aSAH database was used to identify patients treated between January 2010 and December 2015...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28298025/outcome-after-hunt-and-hess-grade-v-subarachnoid-hemorrhage-a-comparison-of-pre-coiling-era-1980-1995-versus-post-isat-era-2005-2014
#16
Juergen Konczalla, Volker Seifert, Juergen Beck, Erdem Güresir, Hartmut Vatter, Andreas Raabe, Gerhard Marquardt
OBJECTIVE Outcome analysis of comatose patients (Hunt and Hess Grade V) after subarachnoid hemorrhage (SAH) is still lacking. The aims of this study were to analyze the outcome of Hunt and Hess Grade V SAH and to compare outcomes in the current period with those of the pre-International Subarachnoid Aneurysm Trial (ISAT) era as well as with published data from trials of decompressive craniectomy (DC) for middle cerebral artery (MCA) infarction. METHODS The authors analyzed cases of Hunt and Hess Grade V SAH from 1980-1995 (referred to in this study as the earlier period) and 2005-2014 (current period) and compared the results for the 2 periods...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28298024/reduction-of-inflammation-after-administration-of-interleukin-1-receptor-antagonist-following-aneurysmal-subarachnoid-hemorrhage-results-of-the-subcutaneous-interleukin-1ra-in-sah-scil-sah-study
#17
James Galea, Kayode Ogungbenro, Sharon Hulme, Hiren Patel, Sylvia Scarth, Margaret Hoadley, Karen Illingworth, Catherine J McMahon, Nikolaos Tzerakis, Andrew T King, Andy Vail, Stephen J Hopkins, Nancy Rothwell, Pippa Tyrrell
OBJECTIVE Aneurysmal subarachnoid hemorrhage (aSAH) is a devastating cerebrovascular event with long-term morbidity and mortality. Patients who survive the initial bleeding are likely to suffer further early brain injury arising from a plethora of pathological processes. These may result in a worsening of outcome or death in approximately 25% of patients and may contribute to longer-term cognitive dysfunction in survivors. Inflammation, mediated by the cytokine interleukin-1 (IL-1), is an important contributor to cerebral ischemia after diverse forms of brain injury, including aSAH...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28298012/association-of-hypothyroidism-with-unruptured-cerebral-aneurysms-a-case-control-study
#18
Kunakorn Atchaneeyasakul, Anita Tipirneni, Tony Zhang, Priyank Khandelwal, Sudheer Ambekar, Brian Snelling, Sushrut Dharmadhikari, Chuanhui Dong, Luis Guada, Kevin Ramdas, Seemant Chaturvedi, Tatjana Rundek, Dileep R Yavagal
OBJECTIVE Thyroid disorder has been known to affect vascular function and has been associated with aortic aneurysm formation in some cases; however, the connection has not been well studied. The authors hypothesized that hypothyroidism is associated with the formation of cerebral aneurysms. METHODS The authors performed a retrospective case-control study of consecutive patients who had undergone cerebral angiography at an academic, tertiary care medical center in the period from April 2004 through April 2014...
February 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28297692/-ruptured-aneurysm-of-bihemispheric-anterior-cerebral-artery-a1-a2-junction-a-case-report
#19
Nao Shimooka, Shiromaru Ishida, Masato Kawai
We report a rare case with a ruptured aneurysm of the bihemispheric anterior cerebral artery(ACA), a rare anomaly of the ACA. A 50-year-old female experienced a sudden onset of severe posterior cervical pain. CT revealed diffuse subarachnoid hemorrhage(SAH)and intra cerebral hemorrhage of the left rectal gyrus. Cerebral angiography showed the left bihemispheric ACA and hypoplasia of the right ACA. A saccular aneurysm was indicated at the A1-A2 junction of the left bihemispheric ACA. A neck clipping was performed completely through the right transsylvian approach...
March 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28294669/-visceral-complications-of-the-aortic-dissections-indications-and-technique-of-the-thoracoabdominal-refenestration
#20
Csaba Dzsinich, Jenő Szolnoky, Gábor Vallus, Gábor Darabos, Gabriella Nyiri, Dániel Teknős
Aortic dissection is a life threatening cardiovascular catastrophy. Its incidence estimated to 5-6 cases per 100,000 patients/year. The intimal tear happens at the ascending aorta in Type A, meanwhile at the aortic isthmus in Type B, but entry point may develop anywhere alongside the entire aorta. All types may affect a short aortic segment resulting in a localized false aneurysm, others separate the intimal layer at longer extension down to the visceral segment and far beyond to the femoral arteries. Dissection of orifices of side branches may lead to cerebral, upper extremity, spinal, visceral, renal and lower extremity malperfusion...
March 2017: Magyar Sebészet
keyword
keyword
31939
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"