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subarachnoide hemorrhage

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https://www.readbyqxmd.com/read/28333777/arteriovenous-lesions-of-the-internal-auditory-canal
#1
Charles L Anzalone, John I Lane, Michael J Link, Matthew L Carlson
OBJECTIVE: To describe a unique case of an asymptomatic arteriovenous lesion of the internal auditory canal (IAC) and present the associated imaging findings. METHODS: Retrospective case report and review of the literature. RESULTS: A 55-year-old man presented for further evaluation of a left-sided sudden sensorineural hearing loss that occurred 8 years earlier. Careful review of outside serial magnetic resonance (MR) imaging revealed a contralateral, ill-defined right-sided IAC mass with low T2 signal and subtle peripheral enhancement on postcontrast T1-weighted sequencing...
March 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28331261/bilateral-traumatic-intracranial-hematomas-and-its-outcome-a-retrospective-study
#2
Sharad Pandey, Vivek Sharma, Kulwant Singh, Deepa Pandey, Mukesh Sharma, Deepak Bhanudas Patil, Neeraj Shende, Richa Singh Chauhan
The objective of this study was to evaluate the age distribution, mode of injury, type of hematomas, and their surgical outcome in patients with bilateral traumatic head injuries. The present study included 669 cases of traumatic head injury who presented at the neurosurgery emergency out of which 94 cases had bilateral head injuries from the period of August 2009 to April 2014. The data from the hospital computerized database were retrospectively analysed. Cases of bilateral traumatic head injury included 94 patients out of which 88...
February 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28330942/primary-angiitis-of-the-central-nervous-system-magnetic-resonance-imaging-spectrum-of-parenchymal-meningeal-and-vascular-lesions-at-baseline
#3
Grégoire Boulouis, Hubert de Boysson, Mathieu Zuber, Loïc Guillevin, Eric Meary, Vincent Costalat, Christian Pagnoux, Olivier Naggara
BACKGROUND AND PURPOSE: Primary angiitis of the central nervous system remains challenging. To report an overview and pictorial review of brain magnetic resonance imaging findings in adult primary angiitis of the central nervous system and to determine the distribution of parenchymal, meningeal, and vascular lesions in a large multicentric cohort. METHODS: Adult patients from the French COVAC cohort (Cohort of Patients With Primary Vasculitis of the Central Nervous System), with biopsy or angiographically proven primary angiitis of the central nervous system and brain magnetic resonance imaging available at the time of diagnosis were included...
March 22, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28330417/involvement-of-nox2-and-nox4-nadph-oxidases-in-early-brain-injury-after-subarachnoid-hemorrhage
#4
Li Zhang, Zhen Li, Dongxia Feng, Haitao Shen, Xiaodi Tian, Haiying Li, Zhong Wang, Gang Chen
Oxidative stress is responsible for a poor prognosis of subarachnoid hemorrhage (SAH) patients. Nox2 has been shown to participate in SAH-induced early brain injury (EBI). Nox4 is another major subtype of Nox family widely expressed in CNS. Here, we investigated the role of Nox4 and whether there was a synergistic effect of Nox2 and Nox4 in SAH-induced EBI. Clinical brain biopsies of four patients with traumatic brain injury and perihematomal brain tissue from six subjects with SAH were examined. Gp91ds-tat (a specific inhibitor of Nox2), GKT137831 (a specific inhibitor of Nox4), and apocynin (a non-specific Nox inhibitor) were used to test the role of Nox2 and Nox4...
March 22, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28327974/intracranial-aneurysm-parameters-for-predicting-a-future-subarachnoid-hemorrhage-a-long-term-follow-up-study
#5
Seppo Juvela, Miikka Korja
BACKGROUND: Retrospective studies have suggested that aneurysm morphology is a risk factor for subarachnoid hemorrhage (SAH). OBJECTIVE: To investigate whether various morphological indices of unruptured intracranial aneurysms (UIAs) predict a future rupture. METHODS: A total of 142 patients with UIAs diagnosed between 1956 and 1978 were followed prospectively until SAH, death, or the last contact. Morphological UIA indices from standard angiographic projections were measured at baseline and adjusted in multivariable Cox proportional hazards regression analyses for established risk factors for SAH...
January 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327970/in-reply-early-moderate-hyperoxemia-does-not-predict-outcome-after-aneurysmal-subarachnoid-hemorrhage
#6
Maarit Lång, Rahul Raj, Markus Benedikt Skrifvars, Matti Reinikainen, Stepani Bendel
No abstract text is available yet for this article.
March 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327950/a-new-classification-for-pathologies-of-spinal-meninges-part-2-primary-and-secondary-intradural-arachnoid-cysts
#7
Jörg Klekamp
BACKGROUND: Spinal intradural arachnoid cysts are rare causes of radiculopathy or myelopathy. Treatment options include resection, fenestration, or cyst drainage. OBJECTIVE: To classify intradural spinal arachnoid cysts and present results of their treatment. METHODS: Among 1519 patients with spinal space occupying lesions, 130 patients demonstrated intradural arachnoid cysts. Neuroradiological and surgical features were reviewed and clinical data analyzed...
March 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327929/letter-early-moderate-hyperoxemia-does-not-predict-outcome-after-aneurysmal-subarachnoid-hemorrhage
#8
Kailei Du, Yanfei Shen
No abstract text is available yet for this article.
March 15, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327921/the-superior-cerebellar-artery-aneurysm-a-posterior-circulation-aneurysm-with-favorable-microsurgical-outcomes
#9
Ana Rodríguez-Hernández, Brian P Walcott, Harjus Birk, Michael T Lawton
BACKGROUND: Superior cerebellar artery (SCA) aneurysms are usually grouped with aneurysms that arise from the upper basilar artery or more broadly, the posterior circulation. However, the SCA aneurysm has distinctive anatomy that facilitates safe surgical management, notably few associated perforating arteries, and excellent exposure in the carotid-oculomotor triangle. OBJECTIVE: To demonstrate the outcomes of patients treated with microsurgery in a continuous surgical series...
January 24, 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
#10
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/28327595/x-linked-inhibitor-of-apoptosis-inhibits-apoptosis-and-preserves-the-blood-brain-barrier-after-experimental-subarachnoid-hemorrhage
#11
Cheng Gao, Hongwei Yu, Cong Yan, Wenyang Zhao, Yao Liu, Dongdong Zhang, Jingwei Li, Nan Liu
Early brain injury following subarachnoid hemorrhage (SAH) strongly determines the prognosis of patients suffering from an aneurysm rupture, and apoptosis is associated with early brain injury after SAH. This study was designed to explore the role of X-linked inhibitor of apoptosis (XIAP) in early brain injury following SAH. The expression of XIAP was detected using western blotting and real-time RT-PCR in an autologous blood injection model of SAH. We also studied the role of XIAP in early brain injury and detected apoptosis-related proteins...
March 22, 2017: Scientific Reports
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
#12
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/28325378/-epidemiology-of-strokes-in-pediatry
#13
Yannick Béjot, Benoit Delpont, Christelle Blanc, Véronique Darmency, Frédéric Huet, Maurice Giroud
Incidence of perinatal arterial stroke (ischemic stroke, intracerebral hemorrhage and subarachnoid hemorrhage) occurring between 20 weeks of gestation and postnatal day 28 ranges between 20 and 65 cases per 100,000 living births. In children aged 29 days to 18 years old, the total incidence is 1.3 to 4.3 for 100,000 per year. In France, almost 450 children are hospitalized for a stroke each year, among them approximately half have an intracerebral hemorrhage.
March 2017: Soins. Pédiatrie, Puériculture
https://www.readbyqxmd.com/read/28324263/decannulation-and-functional-outcome-after-tracheostomy-in-patients-with-severe-stroke-decast-a-prospective-observational-study
#14
Hauke Schneider, Franziska Hertel, Matthias Kuhn, Maximilian Ragaller, Birgit Gottschlich, Anne Trabitzsch, Markus Dengl, Marcus Neudert, Heinz Reichmann, Sigrid Wöpking
BACKGROUND: Tracheostomy is performed in ventilated stroke patients affected by persisting severe dysphagia, reduced level of consciousness, or prolonged mechanical ventilation. The study aim was to determine the frequency and predictors of successful decannulation and long-term functional outcome in tracheotomized stroke patients. METHODS: A prospective single-center observational study recruited ventilated patients with ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage...
March 21, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28323184/associations-of-endothelin-polymorphisms-and-aneurysm-size-at-the-time-of-rupture
#15
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
#16
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
#17
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/28321069/cerebral-salt-wasting-syndrome-and-inappropriate-antidiuretic-hormone-syndrome-after-subarachnoid-hemorrhaging
#18
Hanako Nakajima, Hiroshi Okada, Kazuki Hirose, Toru Murakami, Yayoi Shiotsu, Mayuko Kadono, Mamoru Inoue, Goji Hasegawa
Hyponatremia is a common finding after subarachnoid hemorrhaging (SAH) and can be caused by either cerebral salt-wasting syndrome (CSWS) or syndrome of inappropriate antidiuretic hormone (SIADH). Distinguishing between these two entities can be difficult because they have similar manifestations, including hyponatremia, serum hypo-osmolality, and high urine osmolality. We herein report the case of a 60-year-old man who suffered from SAH complicated by hyponatremia. During his initial hospitalization, he was diagnosed with CSWS...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28320134/post-hemorrhagic-hydrocephalus-recent-advances-and-new-therapeutic-insights
#19
REVIEW
Qianwei Chen, Zhou Feng, Qiang Tan, Jing Guo, Jun Tang, Liang Tan, Hua Feng, Zhi Chen
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment...
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
#20
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
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