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Cranial neuropathy

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https://www.readbyqxmd.com/read/29298213/electrophysiology-of-cranial-nerve-testing-spinal-accessory-and-hypoglossal-nerves
#1
Amro M Stino, Benn E Smith
Multiple techniques have been developed for the electrodiagnostic evaluation of cranial nerves XI and XII. Each of these carries both benefits and limitations, with more techniques and data being available in the literature for spinal accessory than hypoglossal nerve evaluation. Spinal accessory and hypoglossal neuropathy are relatively uncommon cranial mononeuropathies that may be evaluated in the outpatient electrodiagnostic laboratory setting. A review of available literature using PubMed was conducted regarding electrodiagnostic technique in the evaluation of spinal accessory and hypoglossal nerves searching for both routine nerve conduction studies and repetitive nerve conduction studies...
January 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29298210/electrophysiology-of-cranial-nerve-testing-auditory-nerve
#2
Alan D Legatt
The electrocochleogram and brainstem auditory evoked potentials (BAEPs) are electrophysiologic signals used to assess the auditory nerve. The electrocohleogram includes the cochlear microphonic, the cochlear summating potential, and the eighth nerve compound action potential. It is used predominantly for hearing assessment and for diagnosis of Ménière disease and auditory neuropathy. Brainstem auditory evoked potentials are used for hearing assessment, diagnosis of dysfunction within the cochlea, the auditory nerve, and the brainstem auditory pathways up to the level of the mesencephalon, and intraoperative monitoring of these structures...
January 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/29290461/oculomotor-palsy-in-diabetics
#3
H Lajmi, W Hmaied, W Ben Jalel, Z Chelly, A Ben Yakhlef, F Ben Zineb, L El Fekih
INTRODUCTION: Oculomotor palsy is one of the most frequent neuro-ophthalmologic complications of diabetic patients. It generates less interest in the literature than the other ocular manifestations. Our goal was to study the clinical, epidemiological, therapeutic and prognostic characteristics of oculomotor palsy in the diabetic. METHODS: This is a retrospective study of 24 diabetic patients with oculomotor palsy. The ophthalmological examination emphasized ocular motility...
December 28, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29277593/oculoleptomeningeal-amyloidosis-secondary-to-the-rare-transthyretin-c-381t-g-p-ile127met-mutation
#4
Francois Mathieu, Erin Morgan, Joyce So, David G Munoz, Warren Mason, Paul Kongkham
BACKGROUND: Oculoleptomeningeal amyloidosis (OLMA) represents a rare subtype of familial transthyretin (TTR) amyloidosis, characterized by deposition of amyloid in cranial and spinal leptomeninges along with ocular involvement. Of more than 100 TTR mutations identified, few have been associated with OLMA. Herein we describe the first report of leptomeningeal amyloidosis associated with the c.381T>G (p.Ile127Met) TTR mutation, linking this variant in the OLMA phenotype. CASE DESCRIPTION: A 53 year-old male presented with a 2-year history of progressive symptoms including upper and lower limb weakness, ataxia, peripheral and autonomic neuropathy...
December 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29276608/lithium-one-drug-five-complications
#5
Jeremy Zaworski, Pierre-Yves Delannoy, Nicolas Boussekey, Damien Thellier, Hugues Georges, Olivier Leroy
Background: Lithium poisoning could trigger multiple complications. We report the case of a lithium poisoning with five complications that are described for the first time together. Case report: A 60-year-old woman was admitted in our intensive care unit for altered consciousness. Severe lithium intoxication was diagnosed (lithium plasmatic level 8.21 mmol/l) associated with acute oliguric kidney failure. Continuous renal replacement therapy was started immediately...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/29236218/the-dangers-of-the-head-down-position-in-patients-with-untreated-pituitary-macroadenomas-case-series-and-review-of-literature
#6
Satoshi Kiyofuji, Avital Perry, Christopher S Graffeo, Caterina Giannini, Michael J Link
PURPOSE: Cavernous sinus syndrome is a rare phenomenon, characterized by simultaneous neuropathies of cranial nerves III-VI. Various pathological processes have been reported as precipitating etiologies, including infection, inflammation, vascular lesions, and neoplasms. PURPOSE: We report a unique case series of cavernous sinus syndrome attributable to prolonged Trendelenburg or prone positioning during non-cranial procedures and review the pertinent literature to enlighten on this rare but catastrophic phenomenon...
December 13, 2017: Pituitary
https://www.readbyqxmd.com/read/29229344/cavernous-sinus-hemangioma-a-rare-vascular-tumor-of-the-cavernous-sinus
#7
Joshua Bakhsheshian, Gabriel Zada, Martin H Pham
Cavernous sinus hemangiomas (CSH) are rare vascular tumors, which are infrequently encountered in everyday neurosurgical practice. Attempted resection of this lesion without preoperative planning carries a high risk for significant blood loss and cranial neuropathies. Radiation treatments can provide an alternative and safe treatment modality for these lesions. Therefore, an increased awareness is warranted for their clinical suspicion. We reported on a patient that presented with visual deficits and a mass in the sellar, suprasellar and middle fossa regions...
December 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29204306/facial-palsy-after-embolization-of-dural-arteriovenous-fistula-a-case-report-and-literature-review
#8
Luana Antunes Maranha Gatto, Fernando Saurin, Gelson Luis Koppe, Zeferino Demartini
Background: Dural arteriovenous fistulas (DAVF) are unusual intracranial vascular malformations consisting of anomalous connections between meningeal arteries and dural sinuses or the veins that pass through them. They have variable clinical presentation and prognosis, which depend on their location and venous hemodynamics. Treatment is based on the closure of the abnormal connections, which is usually conducted via arterial and/or transvenous endovascular techniques. Case Description: We present a male patient who complained of headaches and left-sided pulsatile tinnitus due to DAVF from the external carotid artery branches draining directly into the ipsilateral sigmoid sinus...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29196362/a-68-year-old-with-cranial-nerve-neuropathies-and-a-troponin-rise
#9
Luke Bennett, Javed Iqbal
In this case study, we summarise the inpatient investigations and management of a 68-year-old woman with Takotsubo cardiomyopathy secondary to a Varicella zoster encephalitis and the difficulties inherent with making this diagnosis. She presented with evolving cranial nerve neuropathies, which started with a vagal nerve mononeuritis and eventually included left-sided sensorineural hearing loss and a facial nerve palsy. These symptoms were concomitant with a variety of cardiac abnormalities, including fast atrial fibrillation and electrocardiographic changes...
December 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/29159152/cranial-nerve-palsy-after-onyx-embolization-as-a-treatment-for-cerebral-vascular-malformation
#10
Jong Min Lee, Kum Whang, Sung Min Cho, Jong Yeon Kim, Ji Woong Oh, Youn Moo Koo, Chul Hu, Jinsoo Pyen, Jong Wook Choi
The Onyx liquid embolic system is a relatively safe and commonly used treatment for vascular malformations, such as arteriovenous fistulas and arteriovenous malformations. However, studies on possible complications after Onyx embolization in patients with vascular malformations are limited, and the occurrence of cranial nerve palsy is occasionally reported. Here we report the progress of two different types of cranial nerve palsy that can occur after embolization. In both cases, Onyx embolization was performed to treat vascular malformations and ipsilateral oculomotor and facial nerve palsies were observed...
September 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29145322/ptosis-as-the-only-manifestation-of-diabetic-superior-division-oculomotor-nerve-palsy-a-case-report
#11
Ping-Yin Chou, Kun-Han Wu, Poyin Huang
RATIONALE: Diabetic oculomotor nerve palsies, also called ischemic third nerve palsies, are the most common etiologic subset of oculomotor nerve palsy in adults. Diabetic oculomotor nerve palsies typically present with ptosis and diplopia, but pupillary function is often spared. The oculomotor nerve separates into superior division and inferior division, with the superior division innervating the superior rectus and levator palpebrae superioris. The diabetic oculomotor nerve palsy may affect isolated superior or inferior division of the oculomotor nerve, but diplopia usually exists...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29135814/neuro-ophthalmology-at-a-tertiary-eye-care-centre-in-india
#12
Rebika Dhiman, Digvijay Singh, Shiva P Gantayala, Vaitheeswaran L Ganesan, Pradeep Sharma, Rohit Saxena
BACKGROUND: Neuro-ophthalmology as a specialty is underdeveloped in India. The aim of our study was to determine the spectrum and profile of patients presenting to a tertiary eye care center with neuro-ophthalmic disorders. METHODS: A retrospective hospital-based study was conducted, and records of all patients seen at the neuro-ophthalmology clinic of Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India, over a 1-year period were retrieved and evaluated...
November 9, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29125412/stereotactic-radiosurgery-for-jugular-foramen-schwannomas-an-international-multicenter-study
#13
Hideyuki Kano, Antonio Meola, Huai-Che Yang, Wan-Yuo Guo, Roberto Martínez-Alvarez, Nuria Martínez-Moreno, Dusan Urgosik, Roman Liscak, Or Cohen-Inbar, Jason Sheehan, John Y K Lee, Mahmoud Abbassy, Gene H Barnett, David Mathieu, Douglas Kondziolka, L Dade Lunsford
OBJECTIVE For some jugular foramen schwannomas (JFSs), complete resection is possible but may be associated with significant morbidity. Stereotactic radiosurgery (SRS) is a minimally invasive alternative or adjunct to microsurgery for JFSs. The authors reviewed clinical and imaging outcomes of SRS for patients with these tumors. METHODS Nine participating centers of the International Gamma Knife Research Foundation identified 92 patients who underwent SRS between 1990 and 2013. Forty-one patients had prior subtotal microsurgical resection...
November 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29122907/clival-metastasis-from-a-gastrointestinal-adenocarcinoma-causing-multiple-cranial-neuropathies
#14
Charlotte Lee, Jesse M Thon, Amar Dhand
A 78-year-old man with a history of benign prostatic hyperplasia presented with double vision, facial pain, altered taste and headache for 7 weeks. Neurological exam was notable for palsies of the right V, VI, VII and XII cranial nerves. An expansive clival mass and multiple lesions in the vertebra were found on MRI. Radionuclide studies showed extensive tumour burden in his liver and peritoneum. His serologies showed normal carcinoembryonic antigen and carbohydrate antigen 19-9 levels and modestly elevated prostate-specific antigen, which was a red herring...
November 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29121382/guidelines-for-radiographic-imaging-of-cranial-neuropathies
#15
Aliasgher Khaku, Vijay Patel, Thomas Zacharia, David Goldenberg, Johnathan McGinn
Disruption of the complex pathways of the 12 cranial nerves can occur at any site along their course, and many, varied pathologic processes may initially manifest as dysfunction and neuropathy. Radiographic imaging (computed topography or magnetic resonance imaging) is frequently used to evaluate cranial neuropathies; however, indications for imaging and imaging method of choice vary considerably between the cranial nerves. The purpose of this review is to provide an analysis of the diagnostic yield and the most clinically appropriate means to evaluate cranial neuropathies using radiographic imaging...
October 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29120976/case-report-masquerading-large-vessel-giant-cell-arteritis
#16
Paul Jacquier, Raphael Wuarin, Carlo Chizzolini, Gabriele Thumann, Heimo Steffen, Argyrios Chronopoulos
SIGNIFICANCE: Large-vessel giant cell arteritis (GCA) can be a diagnostic dilemma for the eye care provider because it may not involve the typical cranial arteries. When any of its potential ocular complications are diagnosed, it is important to consider this unusual form of GCA. PURPOSE: To report an unusual ophthalmic presentation of large-vessel GCA with sequential bilateral anterior ischemic optic neuropathy and branch retinal artery occlusion. METHODS: A 65-year-old previously healthy woman experienced sequential bilateral anterior ischemic optic neuropathy with branch retinal artery occlusion in the absence of other signs and symptoms suggestive of cranial GCA...
November 9, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29108667/clinical-electrophysiological-genetic-and-imaging-features-of-six-chinese-han-patients-with-hereditary-neuropathy-with-liability-to-pressure-palsies-hnpp
#17
Bin Chen, Songtao Niu, Xingao Wang, Wei Li, Na Chen, Zaiqiang Zhang
Hereditary neuropathy with liability to pressure palsies (HNPP) is an autosomal dominant peripheral neuropathy caused by mutations in the peripheral myelin protein 22 (PMP22) gene. This study summarizes the clinical, electrophysiological, genetic, and imaging features of six unrelated Chinese Han patients with HNPP. Age of onset was within the second decade in five patients, and 46 years of age in one patient. Weakness or numbness in a unilateral lower extremity was the most common symptom in 5 patients, and bilateral sensorineural hearing loss was also detected in one patient...
November 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29103181/brain-magnetic-resonance-imaging-cerebrospinal-fluid-and-autoantibody-profile-in-118-patients-with-neuropsychiatric-lupus
#18
Zhen Tan, Yingbo Zhou, Xiangpei Li, Guosheng Wang, Jinhui Tao, Li Wang, Yan Ma, Xiaomei Li
The objective of this study is to analyze clinical manifestations, features of imaging, and laboratory assessment of patients with neuropsychiatric SLE (NPSLE) for better diagnosis and outcome prediction. One hundred eighteen NPSLE patients admitted to the Anhui Provincial Hospital in Hefei, China, between January 2006 and December 2016 were enrolled and analyzed retrospectively. All patients fulfilled the American College of Rheumatology revised classification criteria for SLE. Patients with NPSLE fulfilled the American College of Rheumatology (ACR) nomenclature and case definitions...
November 4, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29101981/acr-appropriateness-criteria%C3%A2-cranial-neuropathy
#19
Bruno Policeni, Amanda S Corey, Judah Burns, David B Conley, R Webster Crowley, H Benjamin Harvey, Jenny Hoang, Christopher H Hunt, Bharathi D Jagadeesan, Amy F Juliano, Tabassum A Kennedy, Gul Moonis, Jeffrey S Pannell, Nandini D Patel, Joel S Perlmutter, Joshua M Rosenow, Jason W Schroeder, Mathew T Whitehead, Rebecca S Cornelius
Evaluation of cranial neuropathy can be complex given the different pathway of each cranial nerve as well as the associated anatomic landmarks. Radiological evaluation requires imaging of the entire course of the nerve from its nucleus to the end organ. MRI is the modality of choice with CT playing a complementary role, particularly in the evaluation of the bone anatomy. Since neoplastic and inflammatory lesions are prevalent on the differential diagnosis, contrast enhanced studies are preferred when possible...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29091318/early-electrophysiological-findings-in-acute-inflammatory-demyelinating-polyradiculoneuropathy-variant-of-guillain-barre-syndrome-in-the-pakistani-population%C3%A2-%C3%A2-a-comparison-with-global-data
#20
REVIEW
Ahmad Wali, Dureshahwar Kanwar, Safoora A Khan, Sara Khan
Acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and acute motor axonal neuropathy are the most common variants of Guillian-Barre syndrome documented in the Asian population. However, the variability of early neurophysiologic findings in the Asian population compared to western data has not been documented. Eighty-seven cases of AIDP were retrospectively reviewed for their demographic, clinical, electrophysiological, and laboratory data. Mean age of subjects was 31 ± 8 years with males more commonly affected...
November 1, 2017: Journal of the Peripheral Nervous System: JPNS
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