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Nerve trauma

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https://www.readbyqxmd.com/read/29346239/factors-associated-with-development-of-dissociated-optic-nerve-fiber-layer-appearance-in-the-pioneer-intraoperative-optical-coherence-tomography-study
#1
Anne P Runkle, Sunil K Srivastava, Alex Yuan, Peter K Kaiser, Rishi P Singh, Jamie L Reese, Justis P Ehlers
PURPOSE: To assess the relationship of dissociated optic nerve fiber layer (DONFL) and intraoperative membrane-peeling dynamics as visualized using intraoperative optical coherence tomography (OCT), and to evaluate the functional implications of DONFL. METHODS: This was a post hoc analysis of eyes undergoing membrane peeling for vitreomacular interface disorders in the prospective PIONEER intraoperative OCT study. Retinal layer measurements in preincision and postpeel intraoperative OCT images were obtained...
January 16, 2018: Retina
https://www.readbyqxmd.com/read/29346229/anatomical-variations-of-the-vertebral-artery-in-the-upper-cervical-spine-clinical-relevance-for-procedures-targeting-the-c1-c2-and-c2-c3-joints
#2
Maria Francisca Elgueta, Johanna Ortiz Jimenez, Nina Nan Wang, Almudena Pérez Lara, Jeffrey Chankowsky, Roshanak Charghi, De Q Tran, Roderick J Finlayson
BACKGROUND AND OBJECTIVES: Accidental breach of the vertebral artery (VA) during the performance of cervical pain blocks can result in significant morbidity. Whereas anatomical variations have been described for the foraminal (V2) segment of the VA, those involving its V3 portion (between the C2 transverse process and dura) have not been investigated and may be of importance for procedures targeting the third occipital nerve or the lateral atlantoaxial joint. METHODS: Five hundred computed tomography angiograms of the neck performed in patients older than 50 years for the management of cerebrovascular accident or cervical trauma (between January 2010 and May 2016) were retrospectively and independently reviewed by 2 neuroradiologists...
January 16, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29343900/direct-electrical-injury-to-brachial-plexus
#3
Maksud Mubarak Devale, Gaurav Jatin Kadakia, Vicky Ghewarchand Jain, Rohit Prakash Munot
Electrical current can cause neurological damage directly or by conversion to thermal energy. However, electrical injury causing isolated brachial plexus injury without cutaneous burns is extremely rare. We present a case of a 17-year-old boy who sustained accidental electrical injury to left upper extremity with no associated entry or exit wounds. Complete motor and sensory loss in upper limb were noted immediately after injury. Subsequently, the patient showed partial recovery in muscles around the shoulder and in ulnar nerve distribution at 6 months...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29343028/-pathogenesis-of-piriformis-syndrome-a-magnetic-resonance-imaging-based-comparison-study
#4
Z F Huang, D S Yang, Z J Shi, J Xiao
Objective: To assess the morphological parameters of the piriformis muscle through magnetic resonance imaging(MRI) so as to further elucidate the pathogenesis of piriformis syndrome (PS). Methods: From September 2015 to October 2016, 30 suspected PS patients and 30 normal controls were enrolled in this study from the Nanfang Hospital, Southern Medical University. The possible causative factors of the PS in the patients were obtained, and the PS patients were divided into subgroups according to the anatomic site of the tender regions...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29336883/long-term-prognosis-of-pulpal-status-of-traumatized-teeth-exhibiting-contradictory-results-between-pulp-sensibility-test-and-ultrasound-doppler-flowmetry-a-retrospective-study
#5
So-Yeon Ahn, Dohyun Kim, Sung-Ho Park
INTRODUCTION: In this retrospective study, we investigated long-term (over 3 years) follow-up results of teeth that exhibited contradictory results between the pulp sensibility test (thermal or electric pulp test) and ultrasound Doppler flowmetry (UDF) until 1 year after trauma to inspect the prognosis of the pulp. METHODS: Data were collected from the records of trauma patients in our hospital between February 2012 and May 2015. The teeth that had continuously shown contrasting results on the pulp sensibility test and UDF until 1 year after trauma were chosen for the study...
January 12, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29334971/the-titanium-elastic-nail-serves-as-an-alternative-treatment-for-adult-proximal-radial-shaft-fractures-a-cohort-study
#6
Ying-Cheng Huang, Jenn-Huei Renn, Yih-Wen Tarng
BACKGROUND: To investigate whether closed reduction and internal fixation (CRIF) with titanium elastic nails (TENs) is a viable alternative treatment in proximal radial fractures. METHODS: In Kaohsiung Veterans General Hospital, from November 2013 to April 2015, five adult male patients with forearm injuries (average age 43 years; range 35-64 years) were treated for proximal radial shaft fractures. CRIF with TENs for radial shaft fractures was performed in these five patients...
January 15, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29330870/cell-therapy-for-spinal-cord-injury-with-olfactory-ensheathing-glia-cells-oecs
#7
REVIEW
Rosa M Gómez, Magdy Y Sánchez, Maria Portela-Lomba, Kemel Ghotme, George E Barreto, Javier Sierra, M Teresa Moreno-Flores
The prospects of achieving regeneration in the central nervous system (CNS) have changed, as most recent findings indicate that several species, including humans, can produce neurons in adulthood. Studies targeting this property may be considered as potential therapeutic strategies to respond to injury or the effects of demyelinating diseases in the CNS. While CNS trauma may interrupt the axonal tracts that connect neurons with their targets, some neurons remain alive, as seen in optic nerve and spinal cord (SC) injuries (SCIs)...
January 13, 2018: Glia
https://www.readbyqxmd.com/read/29328516/ultrasonographic-demonstration-of-intraneural-neovascularization-after-penetrating-nerve-injury
#8
Zsuzsanna Arányi, Anita Csillik, Katalin Dévay, Maja Rosero
INTRODUCTION: Hypervascularization of nerves has been shown to be a pathological sign in some peripheral nerve disorders, but has not been investigated in nerve trauma. METHODS: An observational cohort study was performed of the intraneural blood flow of 30 patients (34 nerves) with penetrating nerve injuries, before or after nerve reconstruction. All patients underwent electrophysiological assessment, and B-mode and color Doppler ultrasonography. RESULTS: Intraneural hypervascularization proximal to the site of injury was found in all nerves, which was typically marked and had a longitudinal extension of several centimeters...
January 12, 2018: Muscle & Nerve
https://www.readbyqxmd.com/read/29327966/ocular-histomorphometry-of-free-living-common-kestrels-falco-tinnunculus
#9
Karin Werther, Cinthia Graziela Candioto, Rüdiger Korbel
We evaluated the histomorphometry of the eye structures (cornea, retina, choroid, and sclera) of 13 adult free-living common kestrels ( Falco tinnunculus). Birds included in the study were euthanatized because of severe trauma from a motor vehicle injury. The eyes were enucleated immediately after euthanasia, fixed in 10% buffered formalin, and decalcified. The right eyes were cut vertically (dorsoventrally) and the left eyes cut horizontally (temporonasally). Tissues were processed, stained with hematoxylin and eosin, and evaluated by an image analysis software...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29326456/case-report-coronectomy-of-an-impacted-and-submerged-second-deciduous-molar
#10
M G Hussain, S K Sah, I McHenry
Coronectomy is a widely-accepted technique available for the treatment of impacted wisdom teeth. The fundamental principle is to prevent trauma to the inferior dental nerve (IDN). Many publications have demonstrated its positive outcomes but there is no literature available regarding coronectomy of deciduous teeth. This case report highlights the complex approach to managing a severely infraoccluded 85 in the mixed dentition of a 10-year-old female. The report demonstrates and discusses the combined orthodontic and oral surgical approach to prevent damage to the IDN and to allow space for orthodontic movement...
January 12, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29325942/perineural-spread-of-melanoma-to-the-brachial-plexus-identifying-the-anatomic-pathway-s
#11
Tomas Marek, Ruple S Laughlin, B Matthew Howe, Robert J Spinner
BACKGROUND: Perineural spread of melanoma is a well-known mechanism of metastasis in cases involving cranial nerves. Brachial plexus involvement is rare and the pathway is unknown. METHODS: A retrospective review of the Mayo Clinic database was performed to identify patients with a history of melanoma and brachial plexus compromise between 1994 and 2017. Inclusion criteria were a history of melanoma, a clinical diagnosis of brachial plexopathy, radiological features consistent with perineural spread and biopsy of melanoma within nerve...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325346/-evidence-based-guideline-for-the-management-of-acute-subaxial-cervical-spine-injury
#12
(no author information available yet)
In order to provide the clinical guidelines of acute subaxial cervical spine injury for the Chinese orthopedic surgeons, the Spine Trauma Group of Chinese Association of Orthopedic Surgeons compiled this guidelines.The guidelines apply to adult patients with acute (less than 3 weeks) subaxial cervical spine and/(or) spinal cord or nerve root injuries. The Study Group wrote the guidelines by setting up questions, determining search words, screening literatures according to inclusion and exclusion criteria, analyzing the included literatures, confirming evidence levels and then providing recommendations...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29323835/recurring-vivid-dreams-in-an-older-hmong-man-with-complex-trauma-experience-and-cognitive-impairment
#13
Wajih Askar, Ariba Khan, Soo Borson, Michael L Malone
INTRODUCTION: Health care workers need to consider the culture and ethnic preferences prevalent in the Hmong community in order to provide optimal care. We describe an older Hmong man to illustrate the challenges faced and competencies needed by primary care. CASE PRESENTATION: An 80-year-old non-English speaking Hmong man with diabetes, nerve sheath tumor, and hypertension presented to the outpatient clinic with his grandson complaining of sleep problems. He had had 2 vivid recurring dreams during the previous few months...
August 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29315178/utilization-of-nerve-integrity-monitor-for-promontory-stimulation-testing-prior-to-cochlear-implant
#14
Elizabeth A Kelly, Samuel Levine, Kristin E Gravel, Dianna L Hart, Tina Huang
OBJECTIVE: To demonstrate the feasibility of a nerve integrity monitor as a tool for promontory stimulation testing in patients with profound sensorineural hearing loss considering cochlear implantation. PATIENTS: Adult patients considered for cochlear implantation with no auditory response on audiometric testing INTERVENTION:: Promontory stimulation testing using the nerve integrity monitor. MAIN OUTCOME MEASURE: By using a facial nerve stimulator and the nerve integrity monitor, transtympanic promontory stimulation testing was performed to assess auditory nerve function and determine candidacy for cochlear implantation...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29310488/the-effects-of-lipoic-acid-and-methylprednisolone-on-nerve-healing-in-rats-with-facial-paralysis
#15
Emrah Tekdemir, Arzu Tatlipinar, Dilek Özbeyli, Özge Tekdemir, Emrah Kınal
OBJECTIVE: To investigate the effects of lipoic acid and methylprednisolone on nerve healing in rats with traumatic facial paralysis. MATERIALS AND METHODS: The rats were randomly divided into four groups, with six rats in the control group and eight each in the remaining three groups. The buccal branch of the facial nerve in all groups except the control group was traumatized by a vascular clamp for 40 minutes. Group 1 was given lipoic acid (LA), Group 2 was given methylprednisolone (MP), and Group 3 was given lipoic acid and methylprednisolone (LA + MP) for one week...
January 8, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29296165/skull-base-and-craniocervical-bone-pneumatisation-two-case-reports-of-differing-presentations-and-a-review-of-the-literature
#16
Olivia Francies, Simon Morley, Tim Beale
We report two patients with increased central skull base and craniocervical junction bone pneumatisation complicated by extra-osseous gas. One patient presented with symptoms of increasing nasal blockage and 'sinus pressure' on a background of extensive nasal polyposis. He was subsequently found to have a history of repeated Valsalva's manoeuvre, the cessation of which resulted in a rapid decrease in the amount of extra-osseous gas on imaging. The second patient presented following a minor head trauma with dysarthria from a hypoglossal nerve palsy and neck pain, with extensive intra- and extra-cranial gas including within the spinal canal (pneumorrhachis)...
November 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29290605/open-surgical-elbow-contracture-release-after-trauma-results-and-recommendations
#17
Jack M Haglin, David N Kugelman, Anthony Christiano, Sanjit R Konda, Nader Paksima, Kenneth A Egol
BACKGROUND: Post-traumatic elbow contracture is a debilitating complication after elbow trauma. The purpose of this study was to characterize the affected patient population, operative management, and outcomes after operative elbow contracture release for treatment of post-traumatic elbow contracture. METHODS: A retrospective record review was conducted to identify all patients who underwent post-traumatic elbow contracture release performed by 1 of 3 surgeons at one academic medical center...
December 28, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29290065/pathophysiology-of-primary-open-angle-glaucoma-from-a-neuroinflammatory-and-neurotoxicity-perspective-a-review-of-the-literature
#18
REVIEW
Karine Evangelho, Maria Mogilevskaya, Monica Losada-Barragan, Jeinny Karina Vargas-Sanchez
PURPOSE: Glaucoma is the leading cause of blindness in humans, affecting 2% of the population. This disorder can be classified into various types including primary, secondary, glaucoma with angle closure and with open angle. The prevalence of distinct types of glaucoma differs for each particular region of the world. One of the most common types of this disease is primary open-angle glaucoma (POAG), which is a complex inherited disorder characterized by progressive retinal ganglion cell death, optic nerve head excavation and visual field loss...
December 30, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29288709/collision-of-the-glass-shards-with-the-eye-a-computational-fluid-structure-interaction-model
#19
Alireza Karimi, Reza Razaghi, Hasan Biglari, Toshihiro Sera, Susumu Kudo
The main stream of blunt trauma injuries has been reported to be related to the automobile crashes, sporting activities, and military operations. Glass shards, which can be induced due to car accident, earthquake, gunshot, etc., might collide with the eye and trigger substantial scarring and, consequently, permanently affect the vision. The complications as a result of the collision with the eye and its following injuries on each component of the eye are difficult to be diagnosed. The objective of this study was to employ a Three-Dimensional (3D) computational Fluid-Structure Interaction (FSI) model of the human eye to assess the results of the glass shards collision with the eye...
December 27, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29286999/comprehensive-evaluation-of-visual-function-in-patients-with-orbital-fracture-by-visual-electrophysiology-and-visual-field-examination
#20
Shao-Rui Liu, Mao Li, Fang-Lin He, Zheng-Kang Li, Xian-Qun Fan
OBJECTIVE: At present, the effect of the visual electrophysiology and vision field examination in patients with orbital blowout fracture is rarely studied. So, the authors investigate the value of visual electrophysiology and vision field examination in the diagnosis of ocular contusion. METHODS: The position and range of fracture of 81 patients were determined by computed tomography (CT) scanning. Visual evoked potential (VEP), electroretinogram (ERG), and mfERG were vision field examination detected in 81 patients and the results were compared with those of contralateral healthy eyes...
January 2018: Journal of Craniofacial Surgery
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