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Abducens Nerve

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https://www.readbyqxmd.com/read/29212484/clinical-features-of-visual-disturbances-secondary-to-isolated-sphenoid-sinus-inflammatory-diseases
#1
Lanlan Chen, Libin Jiang, Bentao Yang, Prem S Subramanian
BACKGROUND: Visual disturbances associated with isolated sphenoid sinus inflammatory diseases (ISSIDs) are easily misdiagnosed due to the nonspecific symptoms and undetectable anatomical location. The main objective of this retrospective case series is to investigate the clinical features of visual disturbances secondary to ISSIDs. METHODS: Clinical data of 23 patients with unilateral or bilateral visual disturbances secondary to ISSIDs from 2004 to 2014 with new symptoms were collected...
December 6, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29199032/surgical-outcome-of-superior-rectus-transposition-in-esotropic-duane-syndrome-and-abducens-nerve-palsy
#2
Rohit Agarwal, Medha Sharma, Rohit Saxena, Pradeep Sharma
PURPOSE: To evaluate surgical outcome of superior rectus transposition (SRT) in esotropic Duane syndrome (DS) and abducens nerve palsy. METHODS: Retrospective medical record analysis of all patients with esotropic DS and abducens nerve palsy treated with SRT at our center with minimum follow-up of 6 months. Primary outcome measures were esotropia in primary position and abduction limitation. Secondary outcome measures included head turn, stereopsis, and cyclovertical deviations...
November 30, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29174523/transvenous-coil-embolization-for-the-treatment-of-carotid-cavernous-fistula-after-pipeline-placement-a-case-report
#3
Ryuta Nakae, Masaya Nagaishi, Issei Takano, Yoshihiro Tanaka, Akio Hyodo, Kensuke Suzuki
The Pipeline embolization device (PED), a type of flow diverter, has become an appealing alternative treatment option for large or giant and wide-necked intracranial aneurysms. Carotid cavernous fistula (CCF) resulting from delayed aneurysmal rupture is a rare complication of PED placement with unknown pathophysiology. Here, we describe a case of CCF resulting from aneurysmal rupture following PED placement, and present the details of treatment by transvenous coil embolization. An 81-year-old woman was referred to our hospital for treatment of an 18...
November 22, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29158094/supernumerary-abducens-nerves-a-comprehensive-review
#4
REVIEW
Joy Mh Wang, Bryan Adam Edwards, Marios Loukas, Rod J Oskouian, R Shane Tubbs
Branching and/or replication of the abducens nerve is not an uncommon occurrence. While numerous variations have been documented, the rarest forms are duplicated or triplicated nerves, where multiple nerve roots originate from the brain stem, travel intracranially and attach to the lateral rectus as separate entities. Herein, we will review the literature on variations found, discuss current hypotheses and clinical relevance, and propose future studies. Neurosurgeons should be aware of such nerve variants when viewing imaging or operating in the regions traversed by the abducens nerve...
November 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29156469/-efficacy-of-vertical-muscle-transpositions-with-and-without-simultaneous-rectus-muscle-recession-for-unilateral-sixth-nerve-palsy
#5
Andrea M Hedergott, Dana Wild, Julia Fricke, Antje Neugebauer
Background We report results of a modified vertical muscle transposition procedure according to the Hummelsheim principle - with and without simultaneous rectus muscle recession - for unilateral sixth nerve palsy. We examine the influence of the duration of the palsy, preoperative angle of squint and preoperative abductive capacity on surgical results of the procedures. Patients and Methods Retrospective study of 29 consecutive patients with unilateral abducens nerve palsy who underwent surgery between 2001 and 2012...
November 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29153254/facial-reanimation-surgery-in-m%C3%A3-bius-syndrome-experience-from-76-cases-from-a-tertiary-referral-hospital-in-latin-america
#6
A Cardenas-Mejia, D Palafox
INTRODUCTION: Möbius syndrome is defined as a combined congenital bilateral facial and abducens nerve palsies. The main goal of treatment is to provide facial reanimation by means of a dynamic surgical procedure. The microneurovascular transfer of a free muscle transplant is the procedure of choice for facial animation in a child with facial paralysis. OBSERVATION: Between January 2008 and January 2017, 124 patients with the syndrome have been approached at our institution...
November 15, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29135718/case-report-adenocarcinoma-of-the-lacrimal-gland-presenting-as-an-abduction-deficit
#7
Crystal L DeLuca, Regina E Zimmers
SIGNIFICANCE: It is imperative to follow the clinical guidelines for abduction deficits to ensure prompt diagnosis of potentially serious etiologies and monitor only those in which a microvascular etiology is most likely. This case reports highlights a rare diagnosis of a malignant tumor of the lacrimal gland presenting as an abduction deficit. PURPOSE: Tumors of the lacrimal gland can cause abduction deficits, which may mimic an abducens nerve palsy. Abducens nerve palsies are often encountered by optometrists...
November 11, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29132416/distinct-functional-consequences-of-ecel1-dine-missense-mutations-in-the-pathogenesis-of-congenital-contracture-disorders
#8
Kenichi Nagata, Mika Takahashi, Sumiko Kiryu-Seo, Hiroshi Kiyama, Takaomi C Saido
Endothelin-converting enzyme-like 1 (ECEL1, also termed DINE in rodents), a membrane-bound metalloprotease, has been identified as a gene responsible for distal arthrogryposis (DA). ECEL1-mutated DA is generally characterized by ocular phenotypes in addition to the congenital limb contractures that are common to all DA subtypes. Until now, the consequences of the identified pathogenic mutations have remained incompletely understood because of a lack of detailed phenotypic analyses in relevant mouse models. In this study, we generated a new knock-in mouse strain that carries an ECEL1/DINE pathogenic G607S missense mutation, based on a previous study reporting atypical DA hindlimb phenotypes in two siblings with the mutation...
November 13, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29129769/retrosigmoid-intradural-suprameatal-inframeatal-approach-for-complete-surgical-removal-of-a-giant-recurrent-vestibular-schwannoma-with-severe-petrous-bone-involvement-technical-case-report
#9
Yosuke Sato, Tohru Mizutani, Katsuyoshi Shimizu, Hans-Joachim Freund, Madjid Samii
BACKGROUND: Surgical removal of giant vestibular schwannomas with severe petrous bone involvement remains challenging due to the high risk of complications. The retrosigmoid intradural suprameatal-inframeatal approach (RISIA) allows for safe exposure extending from Meckel's cave to the petrous internal carotid artery (ICA). CLINICAL DESCRIPTION: A 27-year-old man presented with recurrence of a giant vestibular schwannoma (4.5 cm) invading Meckel's cave and the left petrous ICA...
November 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29121040/ossification-of-the-petrosphenoid-ligament-a-case-study
#10
Janusz Skrzat, Izabela Mróz, Alexandru Spulber, Michał Zarzecki, Jerzy Walocha
The current study presents a case in which a human skull revealed a partially ossified petrosphenoid ligament. The ossified ligament appears as a hooked bony trabecula emerging below the right posterior clinoid process. Another bony trabecula arises from the petrous apex and runs towards the clivus. Both trabecula face each other but do not fuse, having a small gap between their tips. Their positions clearly indicate that they must have formed an overhang above the abducens nerve. Therefore, they should be considered a part of the walls of Dorello's canal, which is a conduit for the abducens nerve and associated vascular structures...
2017: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/29110188/percutaneous-balloon-compression-for-persistent-or-recurrent-trigeminal-neuralgia-after-microvascular-decompression-personal-experience-of-28-patients
#11
Wu Xu, Chengrong Jiang, Chen Yu, Weibang Liang
The objective of this study is to investigate the long-term effects of percutaneous balloon compression (PBC) for treating persistent or recurrent trigeminal neuralgia (TN) after microvascular decompression (MVD). The clinical features, surgical findings, outcomes, and complications of 28 patients underwent PBC for TN in Nanjing Drum Tower Hospital between April 2011 and March 2015 were analyzed retrospectively. All the patients had received MVD before but they did not get cured or the symptom relapsed during follow-up...
November 6, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29098745/prosthodontic-management-of-a-patient-with-moebius-syndrome-a-clinical-report
#12
Ahmed Mahrous, Ghadeer Thalji
Moebius/Mӧbius Syndrome (MS) is an extremely rare congenital disorder characterized by uni- or bilateral palsy of the abducens (VI) and the facial (VII) nerves, causing facial paralysis. Dysfunction of cranial nerves III through XII is common, most often the glossopharyngeal (IX) and hypoglossus (XII). Afflicted individuals seeking prosthodontic care, particularly removable prosthetics, present multiple challenges related to inherent facial and tongue muscle weakness and microstomia. Other extraoral anomalies may include congenital multiple arthrogryposis and malformations of the upper and lower limbs...
November 3, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29062251/a-congenital-cranial-dysinnervation-disorder-m%C3%A3-bius-syndrome
#13
Hatice Mutlu Albayrak, Nuriye Tarakçı, Hüseyin Altunhan, Rahmi Örs, Hüseyin Çaksen
Möbius' syndrome, also known as Möbius' sequence, is a nonprogressive cranial dysinnervation disorder characterized by congenital facial and abducens nerve paralysis. Here, we report a 5-day-old girl who was conceived after in vitro fertilization with poor suck and facial paralysis. She had bilaterally ptosis and lateral gaze limitation, left-sided deviation of the tongue, dysmorphic face, hypoplastic fingers and finger nails on the left hand, and was diagnosed as having Möbius' syndrome. Involvement of other cranial nerves such as three, four, five, nine, 9 and 12, and limb malformations may accompany this syndrome...
September 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/29058517/abducens-nerve-palsy-after-orbital-decompression
#14
Shani Golan, Robert A Goldberg
INTRODUCTION: Double vision after decompression surgery for Thyroid Eye Disease (TED) is well described in the literature and the incidence ranges from 0 to 64%. The Mechanisms for new onset diplopia after orbital decompression are poorly understood. Common theories include: Fibrosis of muscles, displacement of the muscle cone, and reactivation of the TED. AIM: We present two cases with Abducens nerve palsy after uncomplicated secondary orbital decompression surgery...
October 23, 2017: Orbit
https://www.readbyqxmd.com/read/29044089/congenital-sixth-nerve-palsy-with-associated-anomalies
#15
Nirupama Kasturi
Congenital abduction deficit is most likely due to Duane's retraction syndrome as congenital abducens nerve palsy is very rare. We report two cases of infantile abduction deficit due to sixth nerve palsy associated with other anomalies to highlight the importance of including neuroimaging in the evaluation of an infant presenting with a limitation of abduction.
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29025169/-acute-bilateral-abducens-nerve-palsy-in-a-7-year-old-boy-atypical-miller-fisher-syndrome
#16
Ina Sterker, Ina Sorge, Matthias K Bernhard, Andreas Merkenschlager
No abstract text is available yet for this article.
October 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29022157/radiosurgery-in-trochlear-and-abducens-nerve-schwannomas-case-series-and-systematic-review
#17
Iulia Peciu-Florianu, Constantin Tuleasca, Jean-Nicolas Comps, Luis Schiappacasse, Michele Zeverino, Roy Thomas Daniel, Marc Levivier
INTRODUCTION: Schwannomas involving the occulomotor cranial nerves  (CNs; III, IV and VI), can be disabling, due to the associated diplopia and decreased quality of life and are extremely rare. We evaluated the role of Gamma Knife surgery (GKS) in these cases. METHODS: Five patients with CN IV and VI schwannomas (three and two, respectively) were treated in Lausanne University Hospital between 2010 and 2015. Four benefitted from upfront GKS and one from a combined approach (planned subtotal resection followed by GKS), due to a large preoperative tumour volume (size, 3 × 2 × 2...
October 11, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28967311/transpetrosal-approach-to-petro-clival-meningioma
#18
Turki Elarjani, Rakshith Shetty, Harminder Singh, Harley B da Silva, Laligam N Sekhar
A 38-year-old woman had a 3-week gradual onset of right-sided weakness in the upper and lower extremities. MRI showed a large left petro-clival meningioma encasing the basilar and left superior cerebellar artery and compressing the brainstem. A posterior transpetrosal approach, with a left temporal and retrosigmoid craniotomy and mastoidectomy, was performed. The tumor was removed in a gross-total resection with questionable remnants adherent to the brainstem. Intraoperative partial iatrogenic injury to the left oculomotor nerve was repaired with fibrin glue...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28961901/parasellar-schwannomas-extradural-vs-extra-intradural-surgical-approach
#19
Giuseppe Mariniello, Oreste de Divitiis, Ferdinando Caranci, Flavia Dones, Francesco Maiuri
BACKGROUND: Schwannomas of the parasellar region may arise from the trigeminal, oculomotor, trochlear, and abducens nerves. OBJECTIVE: To define the tumor origin, location, and dural relationship (extradural vs extra-intradural vs cisternal) on preoperative magnetic resonance imaging (MRI), in order to plan the best surgical approach (purely extradural vs extra-intradural). METHODS: Twenty-four patients with parasellar schwannomas who underwent surgery were retrospectively analyzed...
August 22, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28955030/gradenigo-s-syndrome-in-a-patient-with-chronic-suppurative-otitis-media-petrous-apicitis-and-meningitis
#20
Nicholas Taklalsingh, Franco Falcone, Vinodkumar Velayudhan
BACKGROUND Gradenigo's syndrome includes the triad of suppurative otitis media, ipsilateral sixth (abducens) cranial nerve palsy and facial pain in the distribution of the fifth (trigeminal) cranial nerve. Gradenigo's syndrome is rare, and the diagnosis is easily overlooked. This case is the first to report Gradenigo's syndrome presenting with meningitis on a background of chronic suppurative otitis media (CSOM) and petrous apicitis (apical petrositis). CASE REPORT A 58-year-old male African American presented with headaches and confusion...
September 28, 2017: American Journal of Case Reports
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