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Oculomotor nerve

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https://www.readbyqxmd.com/read/28176404/clinical-and-magnetic-resonance-imaging-features-of-idiopathic-oculomotor-neuropathy-in-14-dogs
#1
Roser Tetas Pont, Courtenay Freeman, Ruth Dennis, Claudia Hartley, Elsa Beltran
Ophthalmoplegia/ophthalmoparesis (internal, external, or both) has been reported in dogs secondary to neoplasia affecting the oculomotor nerve and is usually given a poor prognosis. The purpose of this retrospective study was to describe the clinical findings, magnetic resonance imaging (MRI) findings, management, outcome, and follow-up in a group of canine cases with idiopathic oculomotor neuropathy. Inclusion criteria included cases with ophthalmoplegia/ophthalmoparesis (internal, external or both) as sole neuroophthalmologic signs, complete ophthalmic and neurologic examination, head MRI, and a minimum follow-up period of 1 year...
February 8, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28165559/comparison-of-the-efficacy-of-surgical-clipping-and-embolization-for-oculomotor-nerve-palsy-due-to-a-posterior-communicating-artery-aneurysm
#2
G Gao, D-Q Gu, Y Zhang, J Yu, Y Chen, Y-J Chao, J-J Wei, X-M Fu, C-S Niu
OBJECTIVE: To aim at the efficacies of surgical clipping and endovascular embolization for oculomotor nerve palsy (ONP) as treatments for posterior communicating artery aneurysm (PcoAA), and the comparison and various influencing factors of the treatments. PATIENTS AND METHODS: An analysis of the clinical data of 52 enrolled PcoAA patients with ONP who had treatment in the Department of Neurosurgery in Anhui Provincial Hospital from January 2011 to June 2015 was conducted...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28153623/dti-tractography-detecting-isolated-oculomotor-nerve-damage-after-brain-traumatic-injury
#3
Timothée Jacquesson, Carole Frindel, Francois Cotton
No abstract text is available yet for this article.
January 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28127130/endovascular-therapy-using-flow-diversion-for-giant-internal-carotid-artery-pseudoaneurysm-arising-in-the-setting-of-an-invasive-pituitary-macroadenoma
#4
Amin F Saad, Almas Syed, Keyan B Marashi, Brian D O'Rourke, Joseph H Hise, Michael J Opatowsky, Kennith F Layton
This report illustrates the unusual occurrence of a pseudoaneurysm arising in the setting of a skull base mass and describes the first reported use of endovascular flow diversion therapy in such a setting. A 63-year-old man with occasional headaches during the preceding month presented with the acute onset of severe left retroorbital headache and oculomotor nerve palsy. Computed tomography (CT) and CT angiogram revealed a destructive skull base mass with an associated giant probable pseudoaneurysm of the cavernous segment of the left internal carotid artery...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28122939/relationship-of-the-lateral-rectus-muscle-the-supraorbital-nerve-and-binocular-coordination-with-episodic-tension-type-headaches-frequently-associated-with-visual-effort
#5
Anxo Cachinero-Torre, Belén Díaz-Pulido, Ángel Asúnsolo-Del-Barco
 To study the relationship between tension-type headaches and the oculomotor system in terms of binocular coordination, mechanosensitivity of the supraorbital nerve, and myofascial trigger points in the lateral rectus muscle, assessing the influence of visual effort caused by using a computer at work. DESIGN : Observational study with blind evaluation of the response variable. METHODS : Two groups were compared: 19 subjects with tension-type headaches and 16 healthy subjects, both exposed to computer use at work...
January 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28069157/mri-detection-of-cerebral-lesions-in-post-traumatic-anisocoria-specificity-and-prognostic-significance
#6
D Woischneck, B Schmitz, T Kapapa
AIM: To identify whether increased numbers of brainstem lesions are found in the presence of a post-traumatic pupillary function disturbance and classify them anatomically. MATERIALS AND METHODS: In this study, a diagnostic magnetic resonance imaging (MRI) examination was performed within 8 days after traumatic brain injury (TBI) in patients who had been unconscious for more than 24 hours post-TBI. The Glasgow Outcome Scale was evaluated 6 months after TBI. The data obtained from 140 consecutively enrolled patients between 2005 and 2011 were analysed...
January 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28017901/central-serous-chorioretinopathy-following-medial-transposition-of-split-lateral-rectus-muscle-for-complete-oculomotor-nerve-palsy
#7
Rebecca Sorenson, Ajay Soni
Central serous chorioretinopathy (CSCR) is an incompletely understood condition in which a primary dysfunction of the choriocapillaris, retinal pigment epithelium, or both causes a detachment of the neurosensory retina. We report the first case of CSCR as a complication of strabismus surgery and explore pathogenic mechanisms.
December 23, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28006728/is-clipping-better-than-coiling-in-the-treatment-of-patients-with-oculomotor-nerve-palsies-induced-by-posterior-communicating-artery-aneurysms-a-systematic-review-and-meta-analysis
#8
REVIEW
Feng Zheng, Ying Dong, Peng Xia, Anastasios Mpotsaris, Pantelis Stavrinou, Gerrit Brinker, Roland Goldbrunner, Boris Krischek
OBJECTIVE: Posterior communicating artery aneurysms (PcomAAs) are the second most common aneurysm, accounting for 25% of all aneurysms and 50% of internal carotid artery aneurysms. It has been estimated that oculomotor nerve palsy (ONP) occurs in up to one-third of patients with posterior communicating artery (PcomA) aneurysms. Recent research showed a better outcome of ONP in patients with PcomAA after surgical clipping when compared to endovascular coiling. We compared the effect of clipping and coiling on recovery of ONP in the management of patients with PcomAAs...
February 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27977032/multiple-pathological-ocular-findings-in-a-patient-with-phace-syndrome
#9
Elif Demirkilinc Biler, Onder Uretmen
The authors describe a 2-year-old girl diagnosed as having posterior fossa malformations, hemangiomas, arterial anomalies, cardiac anomalies, and eye abnormalities (PHACE) syndrome that presented with a large facial hemangioma of the forehead and eyelid, ptosis, microphthalmia, persistent pupillary membrane and pupillary ectopia, congenital oculomotor nerve palsy of the affected eye, and bilateral optic disc dysplasia. [J Pediatr Ophthalmol Strabismus. 2016;53:e72-e74.].
December 8, 2016: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27939798/diplopia-and-sjogren-s-disease-a-rare-case-report
#10
Kaushalendra Tripathi, Richa Tripathi, Navid Seraji-Bozorgzad
Sjogren's syndrome is a chronic autoimmune disorder which affects the exocrine glands with lymphocytic infiltration, and occasionally involves central nervous system. It is usually rare and manifests as a lesion in the trigeminal nerve. Our case discusses the involvement of the oculomotor and abducens nerves along with the prevalence of such cases as seen on literature review. We describe a case of a middle aged woman who presented with ophthalmoplegic symptoms. The symptoms resolved in response to steroid therapy and serum analysis was positive for anti SSA antibodies...
January 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27928390/isolated-oculomotor-nerve-palsy-due-to-metastasis-of-prostatic-cancer-to-the-cavernous-sinus
#11
Yuki Asano, Keiko Takahashi, Hiromasa Tsuda, Mariko Takagi, Fumi Kodaka, Yosuke Yamada
A 69-year-old man with prostatic cancer under palliative care developed isolated right-sided oculomotor nerve palsy with pupillary impairment and persistent ocular pain. Cranial magnetic resonance imaging demonstrated metastasis of prostatic cancer to the right-sided cavernous sinus and orbital apex. In the English language literature, there are only six reported cases of isolated oculomotor nerve palsy secondary to prostatic cancer. In all cases, although there was metastatic lesion in the vicinity of the cavernous sinus, ocular pain did not develop...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27928389/oculomotor-nerve-palsy-presented-with-isolated-unilateral-ptosis-and-minimal-upgaze-palsy
#12
Canan Togay Işıkay, Busra S Polat
This case with unilateral complete blepharoptosis and slight limitation of upgaze as ocular findings due to midbrain infarction represents an unusual form of intra-axial oculomotor nerve involvement. A 65-year-old man was admitted with acute unilateral ptosis of the left eyelid and gait ataxia. He had chronic hypertension in the medical history. The neurologic examination revealed that he had a complete ptosis of the left eyelid, slight limitation of elevation in the left eye, bilateral dysmetria, and gait ataxia...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27928379/a-rare-case-of-penetrating-trauma-resulting-in-isolated-third-nerve-palsy
#13
Caleb Story, Michael Patterson, Wilson McWilliams, Bethany Bray Markowitz
A 23-year-old male presented to the emergency department with right eye pain, right upper eyelid ptosis, blurry vision, and binocular diplopia that developed immediately after he bent over in a parking lot and the antenna of a car penetrated his right upper eyelid. An extensive workup was performed, and he was found to have an isolated traumatic oculomotor nerve palsy with pupil involvement. No other ocular findings of a traumatic injury were present. The patient was observed for 14 months, during which he continually improved, with almost complete resolution of his diplopia, anisocoria, and ptosis...
February 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27927015/isolated-oculomotor-nerve-palsy-in-patients-with-mild-head-injury
#14
Tamara Tajsic, Angelos G Kolias, Tilak Das, Daniel Scoffings, Brinda Muthusamy, Matthew R Garnett, Peter J A Hutchinson
Isolated oculomotor nerve palsy following head injury is uncommon. It can only be diagnosed with confidence if it is known to have developed immediately following trauma and if adequate investigations exclude secondary causes. The recovery is only partial and this has repercussion on patients' quality of life.
February 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/27923188/electrophysiology-in-fisher-syndrome
#15
REVIEW
Satoshi Kuwabara, Yukari Sekiguchi, Sonoko Misawa
Fisher syndrome (FS), a variant of Guillain-Barré syndrome (GBS), is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia. The lesion sites for these unique clinical features include the oculomotor nerves and group 1a neurons in the dorsal root ganglion, and the presence of FS is determined by the expression of ganglioside GQ1b in the human nervous system. Neurophysiological findings suggest that ataxia and areflexia are due to an impaired proprioceptive afferent system. Typically, the soleus H-reflex is absent and a body-sway analysis using posturography shows a 1-Hz peak, which indicates proprioception dysfunction...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27916956/functional-diversity-of-neurotrophin-actions-on-the-oculomotor-system
#16
REVIEW
Beatriz Benítez-Temiño, María A Davis-López de Carrizosa, Sara Morcuende, Esperanza R Matarredona, Rosa R de la Cruz, Angel M Pastor
Neurotrophins play a principal role in neuronal survival and differentiation during development, but also in the maintenance of appropriate adult neuronal circuits and phenotypes. In the oculomotor system, we have demonstrated that neurotrophins are key regulators of developing and adult neuronal properties, but with peculiarities depending on each neurotrophin. For instance, the administration of NGF (nerve growth factor), BDNF (brain-derived neurotrophic factor) or NT-3 (neurotrophin-3) protects neonatal extraocular motoneurons from cell death after axotomy, but only NGF and BDNF prevent the downregulation in ChAT (choline acetyltransferase)...
December 1, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27904500/electrical-stimulation-promotes-regeneration-of-injured-oculomotor-nerves-in-dogs
#17
Lei Du, Min Yang, Liang Wan, Xu-Hui Wang, Shi-Ting Li
Functional recovery after oculomotor nerve injury is very poor. Electrical stimulation has been shown to promote regeneration of injured nerves. We hypothesized that electrical stimulation would improve the functional recovery of injured oculomotor nerves. Oculomotor nerve injury models were created by crushing the right oculomotor nerves of adult dogs. Stimulating electrodes were positioned in both proximal and distal locations of the lesion, and non-continuous rectangular, biphasic current pulses (0.7 V, 5 Hz) were administered 1 hour daily for 2 consecutive weeks...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27903814/blink-associated-contralateral-eccentric-saccades-as-a-rare-sign-of-unilateral-brain-injury
#18
Ilaria Zivi, Eugenio Bertelli, Giacinta Bilotti, Ignazio Alessandro Clemente, Leopold Saltuari, Giuseppe Frazzitta
OBJECTIVE: To describe a rare sign of unilateral brain injury as a form of unwanted blink-associated contralateral eccentric saccades. METHODS: A 62-year-old patient who underwent an ischemic stroke affecting the entire right middle cerebral artery territory came to our attention 1 year after stroke, manifesting with transient contralateral conjugate gaze deviations associated with spontaneous blinking. We complemented the regular neurologic evaluation with brain MRI, study of evoked potentials, electroneurography of the facial nerve, and infrared video-oculoscopy...
January 10, 2017: Neurology
https://www.readbyqxmd.com/read/27886888/imaging-of-oculomotor-third-cranial-nerve-palsy
#19
REVIEW
Michael S Vaphiades, Glenn H Roberson
When evaluating a patient with an oculomotor cranial nerve palsy it may be unclear which neuroimaging modality is optimal; MRI, MR angiography, computed tomography, computed tomography angiography, or intraarterial digital subtraction angiography. We discuss the clinical guidelines in the evaluation of such patients and review neuroimaging techniques, outlining the advantages and disadvantages of each.
February 2017: Neurologic Clinics
https://www.readbyqxmd.com/read/27876664/isolated-hypertrophic-neuropathy-of-the-oculomotor-nerve
#20
Joshua J Lim, H Brent Clark, Andrew W Grande
BACKGROUND: Hypertrophic neuropathy is a rare entity commonly associated with peripheral nerve, characterized by onion bulb formations. Its cranial nerve involvement is very rare; only 7 cases have been found in the literature. CASE DESCRIPTION: A 32-year-old white man with a 5-year history of intermittent right retro-orbital headache and mild right ptosis presented to the Neurosurgery Clinic. A magnetic resonance imaging of his brain demonstrated an enhancing lesion associated with the right third nerve...
November 19, 2016: World Neurosurgery
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