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https://www.readbyqxmd.com/read/28725184/sevoflurane-induces-coherent-slow-delta-oscillations-in-rats
#1
Jennifer A Guidera, Norman E Taylor, Justin T Lee, Ksenia Y Vlasov, JunZhu Pei, Emily P Stephen, J Patrick Mayo, Emery N Brown, Ken Solt
Although general anesthetics are routinely administered to surgical patients to induce loss of consciousness, the mechanisms underlying anesthetic-induced unconsciousness are not fully understood. In rats, we characterized changes in the extradural EEG and intracranial local field potentials (LFPs) within the prefrontal cortex (PFC), parietal cortex (PC), and central thalamus (CT) in response to progressively higher doses of the inhaled anesthetic sevoflurane. During induction with a low dose of sevoflurane, beta/low gamma (12-40 Hz) power increased in the frontal EEG and PFC, PC and CT LFPs, and PFC-CT and PFC-PFC LFP beta/low gamma coherence increased...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28724461/tuberculous-otitis-media-a-resurgence
#2
M Kameswaran, K Natarajan, M Parthiban, P V Krishnan, S Raghunandhan
OBJECTIVE: Tuberculosis is a global health problem that is especially prevalent in developing countries such as India. Recently, atypical presentation has become more common and a high index of suspicion is essential. This study analysed the various presenting symptoms and signs of tuberculous otitis media and the role of diagnostic tests, with the aim of formulating criteria for the diagnosis. METHODS: A total of 502 patients underwent tympanomastoidectomy over a two-year period...
July 20, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28721219/two-rare-manifestations-of-primary-hyperparathyroidism-paralysis-and-peptic-ulcer-bleeding
#3
Maryam Heidarpour, Mehdi Karami, Pegah Hedayat, Ashraf Aminorroaya
Primary hyperparathyroidism revealed by thoracic spine brown tumor and peptic ulcer bleeding is rare. We presented a case of 33-year-old male patient who was admitted with paraplegia. Thoracic spine magnetic resonance imaging (MRI) showed extradural lesion at T4 level. He underwent surgical decompression in T4. According to histopathologic finding and elevated serum parathormone (PTH) and hypercalcemia (total serum calcium 12.1 mg/dL), the diagnosis of brown tumor was down. Ultrasonography of his neck showed a well-defined lesion of 26 × 14 × 6 mm...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28715558/prevalence-of-intracranial-aneurysm-in-women-with-fibromuscular-dysplasia-a-report-from-the-us-registry-for-fibromuscular-dysplasia
#4
Henry D Lather, Heather L Gornik, Jeffrey W Olin, Xiaokui Gu, Steven T Heidt, Esther S H Kim, Daniella Kadian-Dodov, Aditya Sharma, Bruce Gray, Michael R Jaff, Yung-Wei Chi, Pamela Mace, Eva Kline-Rogers, James B Froehlich
Importance: The prevalence of intracranial aneurysm in patients with fibromuscular dysplasia (FMD) is uncertain. Objective: To examine the prevalence of intracranial aneurysm in women diagnosed with FMD. Design, Setting, and Participants: This cross-sectional study included 669 women with intracranial imaging registered in the US Registry for Fibromuscular Dysplasia, an observational disease-based registry of patients with FMD confirmed by vascular imaging and currently enrolling at 14 participating US academic centers...
July 17, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28713608/posttraumatic-progressive-vertebral-hemangioma-induced-by-a-fracture
#5
Kaya Kilic, Emre Unal, Zafer Orkun Toktas, Fugen Vardar Aker, Akın Akakın, Türker Kilic
The authors present an extremely rare case of an aggressive and progressive vertebral capillary hemangioma of the lumbar spine secondary to a trauma. A 40-year-old man who complained of back and leg pain due to a hemangioma of L1 that had begun a year after the fracture of the same vertebra was subsequently operated on. Due to the profuse bleeding, only a subtotal removal was possible. Histopathological diagnosis of the lesion revealed a capillary hemangioma. Postoperative control MRI taken at eight months showed that the lesion and destruction of the L1 vertebra were progressive...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28712480/bee-venom-acupuncture-reduces-interleukin-6-increases-interleukin-10-and-induces-locomotor-recovery-in-a-model-of-spinal-cord-compression
#6
Raquel Nascimento de Souza, Fernanda Kohn Silva, Magda Alves de Medeiros
Spinal cord injuries (SCIs) initiate a series of molecular and cellular events in which inflammatory responses can lead to major neurological dysfunctions. The present study aims to investigate whether bee venom (BV) acupuncture applied at acupoints ST36 (Zusanli) and GV3 (Yaoyangquan) could minimize locomotor deficits and the magnitude of neural tissue losses, and change the balance between pro- and anti-inflammatory cytokines after an SCI by compression. Wistar rats were subjected to an SCI model by compression in which a 2-French Fogarty embolectomy catheter was inflated in the extradural space...
June 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28710985/spinal-cord-compression-secondary-to-idiopathic-thoracic-epidural-lipomatosis-in-an-adolescent-a-case-report-and-review-of-literature
#7
Rumaiza Al-Yafeai, Yazid Maghrabi, Hussein Malibary, Saleh Baeesa
INTRODUCTION: Spinal epidural lipomatosis (SEL) is a rare condition that presents with progressive spinal cord or nerve root compression. It is commonly reported in patients receiving long-term exogenous steroid therapy or in patients with endogenous steroid overproduction. The occurrence of this condition as an idiopathic entity is rarely reported. CASE PRESENTATION: The authors present the clinical course and outcome of a 16-year-old male student, who presented with progressive spastic paraparesis of a one-year duration caused by idiopathic spinal epidural lipomatosis...
July 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28705700/incidental-primary-intradural-carcinoid-tumor-in-a-patient-with-lumbar-radiculopathy
#8
Stavros Koustais, Philip O'Halloran, Alfrazdaq Hassan, Francesca Brett, Steven Young
BACKGROUND: Carcinoid tumors are neuroendocrine neoplasms derived from enterochromaffin cells. Central nervous system involvement is rare. The reported cases include metastases to brain or spinal cord, as well as primary skeletal or extradural disease resulting in compressive myelo-radiculopathy. There are two previously reported cases of primary intradural extramedullary carcinoid tumor, presenting with compressive symptoms. We report the first case of primary incidental intradural extramedullary carcinoid tumor...
July 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28704744/a-primary-intraosseous-cystic-meningioma-case-report
#9
Riccardo Caruso, Giuseppina Fini, Alessandro Pesce, Venceslao Wierzbicki, Luigi Marrocco, Emanuele Piccione, Paola Pasquini
INTRODUCTION: This is a very rare case of intraosseous cystic meningioma. There have been no reports of similar cases in the last 30 years. PRESENTATION OF CASE: A 62-year-old man, suffering from a swelling of the lateral wall of the left orbit was admitted to our hospital. MRI and CT scan showed a large intradiploic lesion involving the lateral wall of the orbit and the greater wing of the sphenoid. The lesion was cystic with a mural nodule. We operated the patient and removed completely the mural nodule and the fibrous wall of cyst...
June 29, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28694639/primary-paraspinal-hydatidosis-causing-acute-paraplegia
#10
Srihari Sridharan, G S Jagan Narayana, Kalyanasundarabharathi Chidambaram, Anand Prasath Jayachandiran
The zoonotic infection hydatidosis is caused by the tapeworm cestode, Echinococcus granulosus. Though considered endemic in India where association of humans with sheep and dogs form part of the livelihood, primary skeletal muscle involvement of the disease is an extremely rare event. We report a case of primary paraspinal hydatidosis with extradural extension causing acute paraplegia. Excision of the cyst and decompression of the cord was done along with albendazole therapy. Paraspinal hydatid disease is a rare entity, and in regions where hydatid disease is endemic, it can be involved in the differential diagnosis of acute compressive myelopathy...
July 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28690724/imaging-of-complicated-frontal-sinusitis
#11
Naourez Kolsi, Ahmed Zrig, Hamdi Chouchène, Rachida Bouatay, Khaled Harrathi, Jamel Koubaa
Complications occur in 3% of the cases of frontal sinusitis. These are mainly oculo-orbital, intracranial and osteomyelitis. Our aim is to describe the contribution of different imaging modalities in the diagnosis of these complications and their post-treatment monitoring. within a 15 years period (2000-2014), 10 patients with complicated frontal sinusitis were included into this retrospective study. 10 patients (9 males) aged 9 to 70 year old (mean 28). Two of these patients (20%) had a history of craniofacial trauma...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28680732/a-case-report-and-review-of-thoracic-spinal-angiolipoma
#12
Yusif Mohammed, Shahed Elhamdani, Mobeen Farooq, Rida Mazagri
BACKGROUND: While it is a rare entity, spinal angiolipomas are well-defined benign tumors that have been described sporadically in the literature starting from the late 1800s. Composed of mature lipomatous and angiomatous elements, these tumors manifest neurological symptoms due to progressive spinal cord or root compression. We present a case of a thoracic spinal angiolipoma and review the relevant literature. CASE DESCRIPTION: A 68-year-old male with ongoing bilateral lower extremity weakness was found on enhanced magnetic resonance imaging to have an extradural mass in the thoracic spine causing cord compression...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28680132/visual-loss-and-other-cranial-ischaemic-complications-in-giant-cell-arteritis
#13
REVIEW
Alessandra Soriano, Francesco Muratore, Nicolò Pipitone, Luigi Boiardi, Luca Cimino, Carlo Salvarani
Giant cell arteritis (GCA) is the most common form of vasculitis in individuals aged 50 years and over. GCA typically affects large and medium-sized arteries, with a predilection for the extracranial branches of the carotid artery. Patients with GCA usually present with symptoms and signs that are directly related to the artery that is affected, with or without constitutional manifestations. The most dreaded complication of GCA is visual loss, which affects about one in six patients and is typically caused by arteritis of the ophthalmic branches of the internal carotid artery...
August 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28675308/traumatic-bifrontoparietal-extradural-hematomas-with-detachment-of-superior-sagittal-sinus-a-case-report-and-review-of-the-literature
#14
Boru Hou, Xiumei Guo, Dengfeng Wang, Yinian Zhang, Zhiyong Zhao, Wenzhen Yang, Gang Wang, Guizhong Yan, Baoyuan Zhou, Haijun Ren
A 45-year-old man suffered bifrontoparietal extradural hematoma resulting from head injury, which cause superior sagittal sinus detachment from its subperiosteal loggia. We present the patient who was treated by early surgical evacuation of the hematoma with an excellent outcome and we also perform a review of the current literature.
July 4, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28665388/-posterior-decompression-of-the-craniovertebral-junction-in-syringomyelia-combined-with-chiari-1-malformation-in-children
#15
A V Sanakoeva, A E Korshunov, Sh U Kadyrov, E A Khukhlaeva, Yu V Kushel'
OBJECTIVE: to develop the algorithm for defining the amount of posterior decompression of the craniovertebral junction in children with syringomyelia combined with Chiari-1 malformation. MATERIAL AND METHODS: Sixty eight children with syringomyelia and Chiari-1 malformation, under age of 18 years, underwent posterior decompression of the craniovertebral junction (PDCVJ) in the period from January 2001 to June 2016. Seven (10%) patients underwent extradural decompression (EDD), 16 (24%) patients underwent extra-arachnoid duraplasty (EAD), 25 (37%) patients underwent intra-arachnoid dissection (IAD) and duraplasty, and 20 (29%) patients underwent PDCVJ and placement of a fourth ventricle-subarachnoid shunt...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28665244/symptomatic-spinal-extradural-arachnoid-cyst-with-cord-compression-in-a-family-case-report
#16
Arnold H Menezes, Patrick W Hitchon, Brian J Dlouhy
A family with familial spinal extradural arachnoid cyst is presented. A 14-year-old boy had an extensive T-8 through L-2 dorsal extradural arachnoid cyst with spinal cord compression and slowly progressive myelopathy. His mother had presented 4 years earlier with acute excruciating back pain due to the combination of a lumbar extradural arachnoid cyst at L2-4 and an extruded disc at L3-4. The literature is reviewed in light of the pathogenesis, imaging, and surgical technique required for treatment.
June 30, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28663655/extradural-hematoma-following-temporomandibular-joint-interposition-arthroplasty
#17
Vaishali Sharma, Parminder Singh Bhatia, Meenakshi Kumar, Mridula Pawar
We describe a case of a 17-year-old male who remained drowsy following left temporomandibular joint (TMJ) interposition arthroplasty for TMJ ankylosis. Computed tomography of the head demonstrated an extradural hematoma. The possible cause of this unusual occurrence is discussed.
April 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28660101/large-compressive-pseudomeningocele-causing-early-major-neurologic-deficit-after-spinal-surgery
#18
Brandon L Raudenbush, Andrew Molinari, Robert W Molinari
STUDY DESIGN: Retrospective review. OBJECTIVES: Large compressive pseudomeningocele causing a major neurologic deficit is a very rare complication that is not well described in the existing literature. METHODS: Institutional review board consent was obtained to study 2552 consecutive extradural spinal surgical cases performed by a single senior spinal surgeon during a 10-year period. The surgeon's database for the decade was retrospectively reviewed and 3 cases involving postoperative major neurologic deficits caused by large compressive pseudomeningocele were identified...
May 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28658041/utility-of-intraoperative-monitoring-in-the-resection-of-spinal-cord-tumors-an-analysis-by-tumor-location-and-anatomical-region
#19
Nikita Lakomkin, Akshitkumar M Mistry, Scott L Zuckerman, Travis Ladner, Parth Kothari, Nathan John Lee, Blaine Stannard, Raul A Vasquez, Joseph S Cheng
STUDY DESIGN: Retrospective review of institutional data OBJECTIVE.: The aim of this study was to assess the utility of somatosensory-evoked potentials (SSEP) and transcranial electric motor-evoked potentials (MEP) in the resection of spine tumors and evaluate the ability of both single and multi-modal monitoring to predict post-operative neurological deficits. SUMMARY OF BACKGROUND DATA: While the utility of intraoperative monitoring (IOM) is well established in scoliosis and degenerative surgery, studies in spine tumor patients have been limited...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28629679/how-to-address-cerebrospinal-fluid-leakage-following-ossification-of-the-posterior-longitudinal-ligament-surgery
#20
Jung Hyeon Moon, Sungjoon Lee, Chun Kee Chung, Chi Heon Kim, Won Heo
BACKGROUND: Primary dural repair in ossification of posterior longitudinal ligament (OPLL) surgery via anterior is challenging because of limited space. Based on several years of our experiences, we present our concept for addressing cerebrospinal fluid (CSF) leakage following dural tear during anterior OPLL surgery. METHODS: We reviewed the medical records of 65 patients who underwent anterior OPLL surgery from 2003 to 2014. We included 7 patients whose operation records described dural tear followed by CSF leakage...
June 16, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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