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Oculomotor nerve

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https://www.readbyqxmd.com/read/28943568/unilateral-oculomotor-nerve-palsy-following-campylobacter-infection-a-mild-form-of-miller-fisher-syndrome-without-ataxia
#1
Tatsuya Ueno, Tomoya Kon, Ai-Ichiro Kurihara, Masahiko Tomiyama
Unilateral oculomotor nerve palsy can result from various neurological disorders. We herein report the case of a 68-year-old man with complete unilateral oculomotor nerve palsy following campylobacter infection. Based on the antecedent infection and the patient's decreased tendon reflexes, incomplete Miller Fisher syndrome (MFS) without ataxia was suspected. His serum tested positive for anti-GQ1b antibodies. He recovered over a period of 87 days without immunotherapy. We conclude that incomplete MFS following campylobacter infection can cause unilateral oculomotor nerve palsy without ataxia...
September 25, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28924127/recurrent-painful-ophthalmoplegic-neuropathy-with-residual-mydriasis-in-an-adult-should-it-be-classified-as-ophthalmoplegic-migraine
#2
Yuya Kobayashi, Yasufumi Kondo, Kana Uchibori, Jun Tsuyuzaki
Recurrent painful ophthalmoplegic neuropathy (RPON) is a rare condition that manifests as headache and ophthalmoplegia. It typically occurs in children. Although migraine or neuropathy have been suggested as etiologies, the precise etiology remains unclear. In the International Classification of Headache Disorders 3rd edition-beta version (ICHD3β) (code 13.9), RPON was categorized into painful cranial neuropathies and other facial pains. We encountered a 48-year-old woman who had diplopia and right ptosis...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28919233/craniospinal-germinomas-in-a-patient-with-down-syndrome-successfully-treated-with-standard-dose-chemotherapy-and-craniospinal-irradiation-a-case-report-and-literature-review
#3
Yohei Miyake, Jun-Ichi Adachi, Tomonari Suzuki, Kazuhiko Mishima, Atsushi Sasaki, Ryo Nishikawa
BACKGROUND: Patients with Down syndrome (DS) are more likely to develop chemotherapy-related complications. The standard treatment for these patients with cancers has not yet been established, and the risks of standard chemotherapy are unclear. In this paper, a rare case of multiple craniospinal germinomas in a patient with DS, which was successfully treated with standard-dose chemotherapy combined with craniospinal irradiation is reported. CASE DESCRIPTION: The authors report a case of multiple craniospinal germinomas in a DS patient who presented with bilateral oculomotor and facial nerve palsy and hearing loss...
September 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28898914/-neuroanatomy-of-the-oculomotor-system
#4
Stephan Heermann
After just a clinical examination, the experienced neurologist can assign specific symptoms quite precisely to distinct lesions within the brain and other parts of the nervous system, on the basis of his neuroanatomical knowledge. This also holds true for lesions affecting the oculomotor system. The aim of this article is to give a comprehensive overview of the neuroanatomical basis of the oculomotor system, in order to facilitate the precise spatial assignment of potential lesions affecting the control of eye movements...
September 12, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28879705/guillain-barre-syndrome-induced-by-heat-stroke-a-case-report-and-literature-review
#5
Huijun Wen
BACKGROUND: Heat stroke is a potentially fatal condition that is caused by elevated core temperature. GuillainBarre syndrome (GBS) induced by heat stroke is extremely rare, and its manifestation with damage to multiple cranial nerves has not been described. METHODS: We describe a rare case of GBS induced by heat stroke with damage to multiple cranial and peripheral nerves. The clinical, radiological, and electrophysiological profiles were presented and analyzed...
September 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28879505/recovery-of-oculomotor-nerve-palsy-after-endovascular-treatment-of-ruptured-posterior-communicating-artery-aneurysm
#6
Qing-Quan Zu, Xing-Long Liu, Bin Wang, Chun-Gao Zhou, Jin-Guo Xia, Lin-Bo Zhao, Hai-Bin Shi, Sheng Liu
PURPOSE: Oculomotor nerve palsy (ONP) may result from Posterior communicating artery (Pcom) aneurysms. Endovascular treatment of ruptured Pcom aneurysms generally is a safe procedure, but the effect of this therapy on ONP is incompletely elucidated. This retrospective study evaluates outcomes of ONP after endovascular treatment for ruptured Pcom aneurysm and with the intention to clarify predictors of recovery. METHODS: From May 2010 to October 2015, 210 patients with Pcom aneurysms underwent endovascular treatment at our institution...
September 6, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28862552/cavernous-sinus-compartments-from-the-endoscopic-endonasal-approach-anatomical-considerations-and-surgical-relevance-to-adenoma-surgery
#7
Juan C Fernandez-Miranda, Nathan T Zwagerman, Kumar Abhinav, Stefan Lieber, Eric W Wang, Carl H Snyderman, Paul A Gardner
OBJECTIVE Tumors with cavernous sinus (CS) invasion represent a neurosurgical challenge. Increasing application of the endoscopic endonasal approach (EEA) requires a thorough understanding of the CS anatomy from an endonasal perspective. In this study, the authors aimed to develop a surgical anatomy-based classification of the CS and establish its utility for preoperative surgical planning and intraoperative guidance in adenoma surgery. METHODS Twenty-five colored silicon-injected human head specimens were used for endonasal and transcranial dissections of the CS...
September 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28862551/isolated-abducens-nerve-palsy-associated-with-subarachnoid-hemorrhage-a-localizing-sign-of-ruptured-posterior-inferior-cerebellar-artery-aneurysms
#8
Jan-Karl Burkhardt, Ethan A Winkler, George F Lasker, John K Yue, Michael T Lawton
OBJECTIVE Compressive cranial nerve syndromes can be useful bedside clues to the diagnosis of an enlarging intracranial aneurysm and can also guide subsequent evaluation, as with an acute oculomotor nerve (cranial nerve [CN] III) palsy that is presumed to be a posterior communicating artery aneurysm and a surgical emergency until proven otherwise. The CN VI has a short cisternal segment from the pontomedullary sulcus to Dorello's canal, remote from most PICA aneurysms but in the hemodynamic pathway of a rupturing PICA aneurysm that projects toward Dorello's canal...
September 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28860924/frontalis-sling-surgery-a-treatment-modality-for-cyclic-oculomotor-nerve-palsy
#9
Smriti Bansal, Sima Das
Cyclic oculomotor nerve paresis and spasm are a rare disorder characterized by alternating spastic and paretic phase of the muscles supplied by the oculomotor nerve. A 26-year-old male presented with abnormal right eyelid movements since early childhood. Examination findings were consistent with diagnosis of right eye cyclic oculomotor nerve palsy. A paretic phase with complete upper eyelid ptosis, exotropia, hypotropia and dilatation of the pupil was followed by a phase of orthotropia, the absence of ptosis and normal pupil size...
July 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28859023/isolated-third-cranial-nerve-palsy-leading-to-the-diagnosis-of-disseminated-burkitt-lymphoma-a-case-report-and-literature-review
#10
Arens Taga, Marco Russo, Irene Florindo, Giovanni Pavesi
INTRODUCTION: Dysfunction of the third cranial nerve can result from lesions anywhere along its course between the midbrain and the orbit. Lymphoma is a rare cause of isolated oculomotor nerve palsy (OMP), with only 19 cases reported in the literature. We describe a case of an isolated OMP leading to the diagnosis of disseminated Burkitt lymphoma (BL). CASE REPORT: A 37-year-old man presented with acute onset diplopia and right ptosis and was found to have a right pupillary sparing OMP...
September 2017: Neurologist
https://www.readbyqxmd.com/read/28852825/incarceration-of-the-inferior-oblique-muscle-branch-of-the-oculomotor-nerve-in-patients-with-orbital-floor-trapdoor-fracture
#11
Yasuhiro Takahashi, Maria Suzanne Sabundayo, Hidetaka Miyazaki, Hidenori Mito, Hirohiko Kakizaki
PURPOSE: To examine the clinical characteristics of patients with concomitant incarceration of the inferior oblique muscle branch of the oculomotor nerve who had suffered from an orbital floor trapdoor fracture with orbital fat incarceration. METHODS: Fifty-nine patients were retrospectively reviewed. Concomitant inferior oblique muscle branch incarceration was diagnosed by inferior oblique muscle underaction on the Hess chart and a missing inferior oblique muscle branch on computed tomographic images on baseline examination...
August 29, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28813574/dynamic-imaging-of-the-eye-optic-nerve-and-extraocular-muscles-with-golden-angle-radial-mri
#12
Saikat Sengupta, David S Smith, Alex K Smith, E Brian Welch, Seth A Smith
Purpose: The eye and its accessory structures, the optic nerve and the extraocular muscles, form a complex dynamic system. In vivo magnetic resonance imaging (MRI) of this system in motion can have substantial benefits in understanding oculomotor functioning in health and disease, but has been restricted to date to imaging of static gazes only. The purpose of this work was to develop a technique to image the eye and its accessory visual structures in motion. Methods: Dynamic imaging of the eye was developed on a 3-Tesla MRI scanner, based on a golden angle radial sequence that allows freely selectable frame-rate and temporal-span image reconstructions from the same acquired data set...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28774492/transient-oculomotor-nerve-palsy-due-to-non-aneurysmal-neurovascular-compression
#13
Stuti Joshi, William Wei Han Tee, Catherine Franconi, David Prentice
Acute oculomotor nerve palsy requires urgent exclusion of aneurysmal compression. We report a 62year old man with a transient right third nerve palsy with pupillary involvement, who was found to have neurovascular compression of the cisternal oculomotor nerve as it curved over a duplicated superior cerebellar artery on high resolution MR imaging. Direct vascular compression should be considered in patients with isolated cranial neuropathies in whom other pathologies have been excluded.
July 31, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28766024/usefulness-of-intraoperative-electromyographic-monitoring-of-oculomotor-and-abducens-nerves-during-skull-base-surgery
#14
Zi-Yi Li, Ming-Chu Li, Jian-Tao Liang, Yu-Hai Bao, Ge Chen, Hong-Chuan Guo, Feng Ling
BACKGROUND: Intraoperative neurophysiologic monitoring of the extraocular cranial nerve (EOCN) is not commonly performed because of technical difficulty and risk, reliability of the result and predictability of the postoperative function of the EOCN. METHODS: We performed oculomotor nerve (CN III) and abducens nerve (CN VI) intraoperative monitoring in patients with skull base surgery by recording the spontaneous muscle activity (SMA) and compound muscle action potential (CMAP)...
August 2, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28765019/the-resolution-of-oculomotor-nerve-palsy-due-to-unruptured-posterior-communicating-artery-aneurysms-a-cohort-study-and-narrative-review
#15
Samuel Hall, Ahmed Ramadan-Sadek, Alexander Dando, Adam Grose, Borislav D Dimitrov, John Millar, Jason Hm Macdonald, Adam Ditchfield, Owen Sparrow, Diederik Bulters
OBJECTIVE: Recovery of oculomotor nerve palsy following microsurgical and endovascular treatment has been studied in numerous small series of predominantly ruptured aneurysms. Little consideration has been given to the distinction between ruptured and unruptured aneurysms. This study examines the influence of treatment modality on oculomotor palsy recovery due to unruptured posterior communicating artery aneurysms. METHODS: Patients who presented between 2003 and 2015 with an oculomotor palsy secondary to an unruptured posterior communicating artery aneurysm were identified from the hospital database...
July 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28759288/neurological-imaging-in-acquired-cranial-nerve-palsy-ophthalmologists-vs-neurologists
#16
Tessa Klein Hesselink, Mari Gutter, Jan Roelof Polling
PURPOSE: Cranial nerve palsies often require neurological imaging by MRI. Guidelines on whether or not to utilize MRI have been absent or lack clarity. In daily practice, both neurologists and ophthalmologists treat patients with cranial nerve palsy and determine whether neuro-imaging is required. There appear to be differences in policy with respect to neuro-imaging. The question, which will be answered in this study, is the following: to what extent do differences in policy exist between ophthalmologists and neurologists regarding imaging by MRI of patients with acquired ocular cranial nerve palsy? METHOD: PubMed database was searched for literature on acquired cranial nerve palsy and MRI scanning performed by ophthalmologists and neurologists...
September 2017: Strabismus
https://www.readbyqxmd.com/read/28757701/viral-mononeurities-causing-partial-oculomotor-nerve-palsy-in-an-8-month-old-child
#17
Jayitri Mazumdar, Chandana Chakraborti, Arundhati Banerjee, Mousumi Nandi
BACKGROUND: Palsy of the oculomotor nerve is rarely seen in children, and comprehensive guidelines for management and outcome are difficult to find. CASE: Here we describe a 8 month old boy with left sided ptosis and infero-leteral deviation of left eye and normally reacting pupil and CSF antimeasles antibody titre negative. OUTCOME: The ptosis improved within 3 weeks with no residual neurodeficit. MESSAGE: Viral mononeuritis leading to partial 3rd nerve palsy is a rare entity in children till date...
May 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28744196/extraocular-motor-system-exhibits-a-higher-expression-of-neurotrophins-when-compared-with-other-brainstem-motor-systems
#18
Rosendo G Hernández, Silvia Silva-Hucha, Sara Morcuende, Rosa R de la Cruz, Angel M Pastor, Beatriz Benítez-Temiño
Extraocular motoneurons resist degeneration in diseases such as amyotrophic lateral sclerosis. The main objective of the present work was to characterize the presence of neurotrophins in extraocular motoneurons and muscles of the adult rat. We also compared these results with those obtained from other cranial motor systems, such as facial and hypoglossal, which indeed suffer neurodegeneration. Immunocytochemical analysis was used to describe the expression of nerve growth factor, brain-derived neurotrophic factor and neurotrophin-3 in oculomotor, trochlear, abducens, facial, and hypoglossal nuclei of adult rats, and Western blots were used to describe the presence of neurotrophins in extraocular, facial (buccinator), and tongue muscles, which are innervated by the above-mentioned motoneurons...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28728332/skin-necrosis-with-oculomotor-nerve-palsy-due-to-a-hyaluronic-acid-filler-injection
#19
Jae Il Lee, Seok Joo Kang, Hook Sun
Performing rhinoplasty using filler injections, which improve facial wrinkles or soft tissues, is relatively inexpensive. However, intravascular filler injections can cause severe complications, such as skin necrosis and visual loss. We describe a case of blepharoptosis and skin necrosis caused by augmentation rhinoplasty and we discuss the patient's clinical progress. We describe the case of a 25-year-old female patient who experienced severe pain, blepharoptosis, and decreased visual acuity immediately after receiving a filler injection...
July 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28725515/quantitative-anterior-and-posterior-clinoidectomy-analysis-and-mobilization-of-the-oculomotor-nerve-during-surgical-exposure-of-the-basilar-apex-using-frameless-stereotaxis
#20
Aclan Dogan, Justin S Cetas, Gregory J Anderson, Andy Rekito, Johnny B Delashaw
Background  Anterior and posterior clinoidectomies have been proposed to augment exposure of the basilar apex. A sequential quantitative benefit analysis offered by these maneuvers has not been reported. Methods  Fourteen datasets from eight cadaveric specimens were analyzed. A modified orbitozygomatic frontotemporal craniotomy was performed. The extent of proximal control of the basilar artery was determined through the exposed opticocarotid and carotidoculomotor triangles before and after clinoidectomies and mobilization of the third nerve at the porous oculomotarius...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
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