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Abducence nerve

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https://www.readbyqxmd.com/read/27601738/intra-operative-electrooculographic-monitoring-to-prevent-post-operative-extraocular-motor-nerve-dysfunction-during-skull-base-surgeries
#1
Veena Sheshadri, Suparna Bharadwaj, B A Chandramouli
BACKGROUND AND AIMS: Intra-operative identification and preservation of extraocular motor nerves is one of the main goals of surgeries for skull base tumours and this is done by monitoring the extraocular movement (EOM). Intra-operative electromyographic monitoring has been reported, but it is a complex and skilful process. Electrooculography (EOG) is a simple and reliable technique for monitoring EOMs. We aimed to assess the utility of EOG monitoring in preventing extraocular motor nerve dysfunction during skull base surgeries...
August 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27538163/-microsurgical-management-of-petroclival-meningiomas-combined-trans-subtemporal-and-suboccipital-retrosigmoid-keyhole-approach
#2
L H Chen, Y Yang, Q Wei, Y J Li, W D Li, J B Gao, B Yu, H Zhao, R X Xu
OBJECTIVE: With the development of modern skull base minimally invasive technology mature and neural radio surgery techniques, it is necessary to re-examine the therapeutic strategy for the treatment of petroclival meningiomas. To sum up the operative experience and methods in microsurgical resection of petroclival meningiomas by the combining trans-subtemporal and suboccipital retrosigmoid keyhole approach. To explore the minimally invasive operation approach of petroclival meningiomas, to raise the removal degree and to improve the postoperative result using this approach...
February 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27218062/bilateral-abducent-nerve-palsy-after-neck-trauma-a-case-report
#3
Hamed Aminiahidashti, Sajad Shafiee, Mohammad Sazegar, Nazanin Nosrati
INTRODUCTION: The abducent nucleus is located in the upper part of the rhomboid fossa beneath the fourth ventricle in the caudal portion of the pons. The abducent nerve courses from its nucleus, to innervate the lateral rectus muscle. This nerve has the longest subarachnoid course of all the cranial nerves, it is the cranial nerve most vulnerable to trauma. It has been reported that 1% to 2.7% of all head injuries are followed by unilateral abducent palsy, but bilateral abducent nerve palsy is extremely rare...
February 2016: Trauma Monthly
https://www.readbyqxmd.com/read/26538786/bilateral-abducent-palsy-in-leptospirosis-an-eye-opener-to-a-rare-neuro-ocular-manifestation-a-case-report
#4
Mahadevaiah Mahesh, Mamatha Shivanagappa, Chilkunda Raviprakash Venkatesh
Leptospirosis, a disease of great significance in tropical countries, presents commonly as a biphasic illness with acute febrile episode in the first phase followed by a brief afebrile period and then by the second phase of fever with or without jaundice and renal failure. However, it has varied manifestations and unusual clinical features ascribed to immunological phenomena can occur due to the additional involvement of pulmonary, cardiovascular, and neurological systems. Among the various neurological features, aseptic meningitis is the most common myeloradiculopathy, myelopathy, cerebellar dysfunction, transverse myelitis, Guillain-Barre syndrome, optic neuritis, peripheral neuropathy hare also described...
November 2015: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/26349152/-conservative-management-of-posttraumatic-diplopia
#5
Ewa Tokarz-Sawińska, Ewelina Lachowicz
PURPOSE: To determine the effect of prism correction with physicotherapeutic procedures on symptomatic improvement in posttraumatic oculomotor, trochlear and abducent nerves palsy. PATIENTS AND METHODS: Twenty eight patients (five women and twenty three men) at the age range from 23 to 50 years (mean age of 36.5 y.o.) with the posttraumatic ophthalmic complications underwent routine ophthalmic and strabologic examination. Prism correction and vitaminum B1 in iontophoresis were used due to unilateral oculomotor, trochlear and abducent nerve palsy, at 3-11 (mean interval between the trauma and treatment commencement of 7 months) months after traffic accident...
2015: Klinika Oczna
https://www.readbyqxmd.com/read/26266880/abducent-nerve-palsy-treated-by-microvascular-decompression-a-case-report-and-review-of-the-literature
#6
REVIEW
Tomosato Yamazaki, Tetsuya Yamamoto, Toru Hatayama, Alexander Zaboronok, Eiichi Ishikawa, Hiroyoshi Akutsu, Masahide Matsuda, Noriyuki Kato, Akira Matsumura
Too few cases of isolated abducent nerve palsy caused by neurovascular compression syndrome have been reported. We here report on a case of abducent nerve palsy caused by neurovascular compression syndrome that was successfully treated by microvascular decompression (MVD). A 46-year-old male presented with a 6-month history of right-sided persistent abducent nerve palsy. High-resolution magnetic resonance imaging revealed a neurovascular contact of the vertebral artery with the right abducent nerve. MVD was performed via a retrosigmoid craniotomy, with remarkable improvement of the palsy...
October 2015: Acta Neurochirurgica
https://www.readbyqxmd.com/read/26115474/gruber-gradenigo-dorello-and-vail-key-personalities-in-the-historical-evolution-and-modern-day-understanding-of-dorello-s-canal
#7
Renuka K Reddy, Rohit K Reddy, Robert W Jyung, Jean Anderson Eloy, James K Liu
A century ago an ambitious young anatomist in Rome, Primo Dorello, who sought to understand the cause of abducent nerve palsy that often occurred in patients with severe middle ear infections, conducted intricate studies on the intracranial course of the nerve. In his findings, he identified that the abducent nerve passes through a narrow sinus near the apex of the petrous bone, which formed an osteofibrous canal. Dorello suggested that in this enclosed region the abducent nerve may be particularly vulnerable to compression due to the vascular edema accompanying the infection...
January 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/25833072/speech-production-intelligibility-and-oromotor-function-in-seven-individuals-with-m%C3%A3-bius-sequence
#8
Lotta Sjögreen, Kajsa Eklund, Anna Nilsson, Christina Persson
PURPOSE: Möbius sequence is a rare disease characterized by congenital facial and abducent nerve palsy. Other cranial nerves may be affected. Cleft palate, intellectual disability and neuropsychiatric disorders are associated with the diagnosis. The aim was to explore speech production, intelligibility and oromotor function in a group of individuals with Möbius sequence. METHOD: Three children (5-11 years) and four adults (26-54 years) were recruited to the study via the Swedish Möbius syndrome association...
April 2, 2015: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/25495739/detection-of-third-and-sixth-cranial-nerve-palsies-with-a-novel-method-for-eye-tracking-while-watching-a-short-film-clip
#9
Uzma Samadani, Sameer Farooq, Robert Ritlop, Floyd Warren, Marleen Reyes, Elizabeth Lamm, Anastasia Alex, Elena Nehrbass, Radek Kolecki, Michael Jureller, Julia Schneider, Agnes Chen, Chen Shi, Neil Mendhiratta, Jason H Huang, Meng Qian, Roy Kwak, Artem Mikheev, Henry Rusinek, Ajax George, Robert Fergus, Douglas Kondziolka, Paul P Huang, R Theodore Smith
OBJECT: Automated eye movement tracking may provide clues to nervous system function at many levels. Spatial calibration of the eye tracking device requires the subject to have relatively intact ocular motility that implies function of cranial nerves (CNs) III (oculomotor), IV (trochlear), and VI (abducent) and their associated nuclei, along with the multiple regions of the brain imparting cognition and volition. The authors have developed a technique for eye tracking that uses temporal rather than spatial calibration, enabling detection of impaired ability to move the pupil relative to normal (neurologically healthy) control volunteers...
March 2015: Journal of Neurosurgery
https://www.readbyqxmd.com/read/25002761/intracranial-nonvestibular-neurinomas-young-neurosurgeons-experience
#10
Forhad Hossain Chowdhury, Mohammod R Haque, Khandkar A Kawsar, Mainul H Sarker, Mahmudul Hasan, Atul H Goel
BACKGROUND AND OBJECTIVES: Neurinoma arising from other than nonvestibular cranial nerves is less prevalent. Here we present our experiences regarding the clinical profile, investigations, microneurosurgical management, and the outcome of nonvestibular cranial nerve neurinomas. MATERIALS AND METHODS: From January 2005 to December 2011, the recorded documents of operated nonvestibular intracranial neurinomas were retrospectively studied for clinical profile, investigations, microneurosurgical management, complications, follow-up, and outcomes...
July 2014: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/24930400/sixth-nerve-palsy-associated-with-obstruction-in-dorello-s-canal-accompanied-by-nodular-type-muscular-sarcoidosis
#11
Ayako Shioya, Hiroshi Takuma, Masanari Shiigai, Akiko Ishii, Akira Tamaoka
A 52-year-old Japanese woman complaining of horizontal double vision for 10 days was admitted to our hospital. Neurological examination revealed left abducent nerve palsy and muscle swelling in her thighs. Brain MRI showed obstruction in the spinal fluid space of the left Dorello's canal, which transmits a portion of the abducent nerve. In Ga-67-enhanced citrate scintigraphy, wide accumulation was seen in her bilateral thighs, lower legs, and gluteus muscles. Muscular MRI showed a star-shaped central structure on short tau inversion recovery (STIR) images, and the three stripes sign on T2-weighted images...
August 15, 2014: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/23757980/clinical-course-complications-and-predictors-of-mortality-in-patients-with-tuberculous-meningitis-an-experience-of-fifty-two-cases-at-civil-hospital-karachi-pakistan
#12
Sirajus Salekeen, Khalid Mahmood, Iftikhar Haider Naqvi, Mirza Yousuf Baig, Syed Tehssen Akhter, Amanullah Abbasi
OBJECTIVE: To assess the clinical course, complications and predictors of mortality in reducing the consequent morbidity and mortality in patients with tuberculous meningitis. METHODS: A prospective study was carried out at Civil Hospital Karachi from January 2009 to January 2011. Fifty-two confirmed cases of tuberculous meningitis were included. The entire clinical course with complications and predictors of mortality were assessed. Data was analyzed using SPSS version 17...
May 2013: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/23573353/coexistence-of-intracranial-germ-cell-tumor-and-craniopharyngioma-in-an-adolescent-case-report-and-review-of-the-literature
#13
Nikolaos Tsoukalas, Maria Tolia, Ioannis D Kostakis, Nikolaos Pistamaltzian, Dimitrios Tryfonopoulos, Georgios Lypas, Georgios Koumakis, Vasileios Barbounis, Nikolaos Goutas, Anna Efremidis
PURPOSE: We present the case of a patient treated for intracranial germ cell tumor in which elements of craniopharyngioma were found in the residual tumor mass. FINDINGS: A 17 year old patient presented with a history of secondary amenorrhea. She deteriorated with headache and left eyelid drop, paresis of the abducent nerve and convergent strabismus (Parinaud syndrome). β-HCG was 722mIU/ml and pregnancy was excluded. AFP was 6322 ng/ml. Brain CT scan showed a large endosellar tumor to the hypersellar region...
2013: International Journal of Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/23451716/the-dorello-canal-historical-development-controversies-in-microsurgical-anatomy-and-clinical-implications
#14
Varun R Kshettry, Joung H Lee, Mario Ammirati
Interest in studying the anatomy of the abducent nerve arose from early clinical experience with abducent palsy seen in middle ear infection. Primo Dorello, an Italian anatomist working in Rome in the early 1900s, studied the anatomy of the petroclival region to formulate his own explanation of this pathological entity. His work led to his being credited with the discovery of the canal that bears his name, although this structure had been described 50 years previously by Wenzel Leopold Gruber. Renewed interest in the anatomy of this region arose due to advances in surgical approaches to tumors of the petroclival region and the need to explain the abducent palsies seen in trauma, intracranial hypotension, and aneurysms...
March 2013: Neurosurgical Focus
https://www.readbyqxmd.com/read/23139584/abducent-nerve-palsy-following-an-inferior-alveolar-nerve-block
#15
L K Surej Kumar, Suvy Manuel, Ashwin Sudhesh, Khaleel A Thaha
No abstract text is available yet for this article.
March 2010: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/23124085/-a-case-of-sj%C3%A3-gren-syndrome-suspected-rheumatoid-arthritis-and-behcet-s-disease-complicated-with-cochlear-nerve-and-trigeminal-nerve-disorders
#16
Yuki Nanke, Tsuyoshi Kobashigawa, Toru Yago, Hisashi Yamanaka, Shigeru Kotake
We described a patient with secondary Sjögren's syndrome suspected showing multiple cranial neuropathies at the different time. A 68-year old woman has been treated as rheumatoid arthritis since 1963. In 2001, she was also diagnosed with Sjögren's syndrome suspected. Afterward, abducent and trigeminal neuropathies and uveites occurred. This case is important to insight into the cranial neuropathy with Sjögren's syndrome.
2012: Nihon Rinshō Men'eki Gakkai Kaishi, Japanese Journal of Clinical Immunology
https://www.readbyqxmd.com/read/23119569/moebius-syndrome-moebius-sequence
#17
A A Desai, S Bansal
Moebius Syndrome is one of the rare disorder amongst the oromandibular limb hypogenesis. It is of a unknown atiology with sporadic occurrence in which there is congenital bilateral facial palsy,-bilateral involvement of abducent nerve along with other cranial nerves like III, V, IX, X, Xllth and the patient having masklike expressionless face. We are reporting a case of Moebius Sequence who presented to us in the department of ENT and Head and Neck Surgery, Baroda.
October 1999: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/22832772/moebius-syndrome-and-hydrosyringomyelia-description-of-a-new-association
#18
Luciana Losito, Leonarda Gennaro, Marilena Cacudi, Marta De Rinaldis, Antonio Trabacca
The diagnosis of Moebius syndrome, a rare congenital disorder, is primarily based on congenital facial and abducent nerve palsy. Involvement of other cranial nerves is also common. Occasionally the V, X, XI, and XII cranial nerves are involved, resulting in a difficulty to chew, swallow, and cough, which often leads to respiratory complications. Mental retardation and autism have been reported in some cases. Moebius syndrome can be associated with orofacial anomalies and limb malformations. The authors describe a patient with a confirmed diagnosis of Moebius syndrome associated with hydrosyringomyelia...
June 2013: Journal of Child Neurology
https://www.readbyqxmd.com/read/22707692/a-case-of-cranial-multinevritis-from-the-onset-to-the-diagnosis-of-primary-neurolymphomatosis
#19
Domizia Vecchio, Daniela Mittino, Emanuela Terazzi, Luca Nassi, Nassi Luca, Annarita Conconi, Francesco Monaco
Neurolymphomatosis (NL) is a rare peripheral or cranial neuropathy caused by non-Hodgkin's lymphoma (NHL). Diagnosis is often delayed and prognosis is poor. The authors described a woman in her 70s with a facial left peripheral palsy, complete right abducent palsy, left hypoacusia and balance deficit. Then she presented with low progressive hyposthenia at four limbs and cognitive impairment, sudden facial right peripheral palsy and complete left abducent palsy. The authors performed brain and spinal MRI, cerebrospinal fluid (CSF) analysis and extensive haematological examinations for infections, autoimmune and neoplastic diseases...
2012: BMJ Case Reports
https://www.readbyqxmd.com/read/22675008/short-duration-respiratory-illness-with-abducens-palsy-in-a-young-man
#20
Vivekanand Undrakonda, Shashikiran Umakanth
Acute onset of diplopia associated with high-grade fever, sore throat and cough without features of raised intracranial tension in a young patient is an uncommon presentation. A diagnosis of abducent nerve palsy due to pontine tuberculoma associated with miliary tuberculosis was made based on sputum examination, chest x-ray and MRI. On diagnosis, monocular patching of the left eye was performed to avoid diplopia and primary antitubercular drugs with systemic steroids were given. An unfortunate 48 h delay in starting the antitubercular treatment likely decreased the probability of survival...
2011: BMJ Case Reports
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