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Abducent nerve

Yosuke Moteki, Yasunari Niimi, Yoshikazu Okada, Takakazu Kawamata
OBJECTIVE: Although ruptured vertebral artery dissecting aneurysms (VADAs) are often associated with ocular symptoms, such as abducent nerve palsy and Terson's syndrome (TS), their frequency and risk factors in comparison with those associated with ruptured aneurysms in other locations have not been reported. METHODS: A total of 343 patients with non-traumatic subarachnoid hemorrhage were treated in our hospital from April 2002 to May 2016, among which 35 (10.2%) had VADA as the origin of hemorrhage...
May 11, 2018: World Neurosurgery
Aiman El Mograbi, Ethan Soudry
Objective: The clinical presentation of sphenoid sinusitis can be highly variable. Rarely, sphenoid sinusitis may present with cranial nerve complications due to the proximity of these structures to the sphenoid sinus. Method: A case series from Rabin Medical Center and all cases of cranial nerves palsies secondary to sphenoid sinusitis that have been reported in the literature were reviewed. Results: Seventeen patients were identified. The abducent nerve was the most common cranial nerve affected (76%), followed by the oculomotor nerve (18%)...
March 2017: World Journal of Otorhinolaryngology—Head and Neck Surgery
Bu-Lang Gao, Zi-Liang Wang, Tian-Xiao Li, Bin Xu
PURPOSE: To investigate the effects of detachable balloons in embolizing traumatic carotid cavernous fistulas (TCCFs) and the risk factors for recurrence after balloon embolization. MATERIALS AND METHODS: 188 patients with TCCFs were enrolled, and clinical, treatment, and follow-up data were analyzed for possible risk factors for recurrence after embolization. RESULTS: Among 188 patients, 182 (96.8%) had successful balloon embolization; 6 patients failed...
October 11, 2017: Journal of Neurointerventional Surgery
Cassiano Marchi, Paulo Henrique Pires de Aguiar, Ana Maria Moura, Giovanna Matricardi, Carolina Utsunomya Muniz, Rogério Aires, Flávia Gehrke, Natally Santiago, Samuel Simis
BACKGROUND: Trigeminal neuralgia (TN) is the most common type of facial neuralgia with incidence of 26.8/100,000 person year. In general, this scenario is characterized by a lancinating, unilateral, paroxysmal pain in the area of the fifth cranial nerve. Several treatment methods, including the injection of ethyl alcohol or butyl alcohol into the ganglion, the glycerol injection into the trigeminal cistern, peripheral nerve divisions, the radiofrequency thermocoagulation of the preganglionic fibers, and radiosurgery has been used for TN...
2017: Surgical Neurology International
Rumela Ghosh, Vikram Shetty, Shruthi Hegde, G Subhas Babu, Vidya Ajila, Nanda Kishore P, Mithula Nair
Mobius syndrome is a rare congenital disorder with the preliminary diagnostic criteria of congenital facial and abducent nerve palsy. Involvement of other cranial nerves, too, is common. Prevalence rate of this syndrome is approximately 1 in 100,000 neonates. It is of unknown etiology with sporadic occurrence. However, data regarding the occurrence rate in India is limited. Features such as orofacial malformations, limb defects, and musculoskeletal, behavioral, and cognitive abnormalities might be associated...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
Arun G Jadhao, Saikat P Biswas, Rahul C Bhoyar, Claudia Pinelli
Nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) enzymatic activity has been reported in few amphibian species. In this study, we report its unusual localization in the medulla oblongata, spinal cord, cranial nerves, spinal nerves, and ganglions of the frog, Microhyla ornata. In the rhombencephalon, at the level of facial and vagus nerves, the NADPH-d labeling was noted in the nucleus of the abducent and facial nerves, dorsal nucleus of the vestibulocochlear nerve, the nucleus of hypoglossus nerve, dorsal and lateral column nucleus, the nucleus of the solitary tract, the dorsal field of spinal grey, the lateral and medial motor fields of spinal grey and radix ventralis and dorsalis (2-10)...
April 2017: Journal of Chemical Neuroanatomy
Hidetaka Arishima, Ken-Ichiro Kikuta
If the origin of isolated abducent nerve palsy cannot be found on neuroradiological examinations, diabetes mellitus is known as a probable cause; however, some cases show no potential causes of isolated abducent nerve palsy. Here, we report a 74-year-old male who suffered from diplopia due to isolated left abducent nerve palsy. Magnetic resonance angiography and fast imaging employing steady-state acquisition imaging clearly showed a dolichoectasic vertebrobasilar artery compressing the left abducent nerve upward and outward...
January 2017: Journal of Neurosciences in Rural Practice
Nishanth Sadashiva, Dhaval Shukla
No abstract text is available yet for this article.
January 2017: Journal of Neurosciences in Rural Practice
Veit Maria Hofmann, Stephan M Niehues, Annett Pudszuhn
Patients suffering from abducent nerve palsy are usually primary seen by a conservative medical Specialist. In most cases the ENT specialist is secondary involved for treatment. In the majority of cases abducent nerve palsy is a temporary symptom associated with neurologic or vascular diseases. Rarely inflammation, neoplasm or fracture of the skull base cause this symptom and lead to an intervention done by the ENT surgeon. This case series describes retrospectively the abducent palsy seen through the eyes of an ENT surgeon...
May 2017: Laryngo- Rhino- Otologie
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
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
Mitsuhiro Hasegawa, Mohsen Nouri, Shinya Nagahisa, Koichiro Yoshida, Kazuhide Adachi, Joji Inamasu, Yuichi Hirose, Hironori Fujisawa
Epidermoid cysts constitute less than 1% of intracranial tumors with the majority of them involving cerebellopontine angle (CPA). Although several mechanisms for cranial nerve dysfunction due to these tumors have been proposed, no direct evaluation for hyper- or hypoactive dysfunction has been done. In this case series, pathophysiology of cranial nerve dysfunction in CPA epidermoid cysts was evaluated with special attention to a new mechanism of capsule strangulation caused by stratified tumor capsule. Twenty-two cases with epidermoid cysts of CPA micro-neurosurgically treated in our departments since 2005 were reviewed...
April 2016: Neurosurgical Review
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
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
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
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
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
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
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
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
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