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Abducens Nerve

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https://www.readbyqxmd.com/read/28619497/long-term-functional-outcome-of-symptomatic-unruptured-intracranial-aneurysms-in-an-interdisciplinary-treatment-concept
#1
M Kunz, F Dorn, T Greve, V Stoecklein, J C Tonn, H Brückmann, Ch Schichor
OBJECTIVE: In symptomatic unruptured intracranial aneurysms (UIA), data on long-term functional outcome are sparse in the literature, even in the light of modern interdisciplinary treatment decisions. We therefore analysed our in-house database for prognostic factors and long-term outcome of neurological symptoms after microsurgical/endovascular treatment. METHODS: Patients treated between 2000 and 2016 after interdisciplinary vascular board decision were included...
June 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28616041/efficacy-of-intraorbital-electroacupuncture-for-diabetic-abducens-nerve-palsy-study-protocol-for-a-prospective-single-center-randomized-controlled-trial
#2
Ling-Yun Zhou, Xue-Mei Li, Tie-Juan Liu, Xiao-Jie Ji, Ming Zhao, Chang Su, Ji-Chao Liu, Jiang-Yun Sun
Abducens nerve palsy (ANP) is commonly seen in patients with diabetes mellitus. The validity of acupuncture as a traditional Chinese medicine method in peripheral nerve repair is well established. However, its efficacy in randomized controlled trials remains unclear. Herein, we designed a protocol for a prospective, single-center, randomized controlled trial to investigate the effect of intraorbital electroacupuncture on diabetic ANP. We plan to recruit 60 patients with diabetic ANP, and randomly divide them into treatment and control groups...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28602444/abducens-nerve-palsy-in-gestational-hypertension-a-case-report-and-review-of%C3%A2-the%C3%A2-literature
#3
Albaro J Nieto-Calvache, Sara Loaiza-Osorio, José Casallas-Carrillo, María F Escobar-Vidarte
BACKGROUND: Headache, blurring of vision, and confusion are common neurologic symptoms of hypertensive disorders of pregnancy, whereas abducens nerve palsy during pregnancy is an extremely rare condition. CASE: A 28-year-old woman with gestational hypertension presented isolated sixth cranial nerve palsy after delivery. Neither simple resonance nor angioresonance showed alterations. No other specific pathology was found. Symptoms of abducens nerve palsy resolved spontaneously...
June 8, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28601537/trigeminocardiac-reflex-as-the-presentation-of-maxillary-sinus-adenocarcinoma
#4
Jason M Lunt, Ahmad Al-Taee, Rachna Rawal, Fred R Buckhold
The trigeminocardiac reflex is a brainstem reflex that manifests as sudden hemodynamic dysfunction including bradycardia, hypotension, hypopnea, and gastric hypermotility due to mechanical stimulation of the trigeminal nerve. Here, the trigeminocardiac reflex was part of the initial patient presentation that led to the diagnosis of maxillary adenocarcinoma. A 54-year-old male presented to the emergency department with a two-month history of right upper jaw pain. Vital signs included blood pressure of 68/48 mmHg, heart rate of 55, and oxygen saturation of 85%...
June 7, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28586933/a-case-of-pituitary-carcinoma-initially-diagnosed-as-an-ectopic-growth-hormone-producing-pituitary-adenoma-with-a-high-ki-67-labeling-index
#5
Toshiki Endo, Yoshikazu Ogawa, Mika Watanabe, Teiji Tominaga
We report a case of a 66-year-old woman with a malignant transformation of a growth hormone (GH)-producing pituitary adenoma that was mainly located in the clivus. The patient originally presented with left oculomotor and abducens nerve palsies. Magnetic resonance imaging revealed a clival tumor separated from the normal pituitary gland, and the patient subsequently underwent transsphenoidal surgery. Analysis of the resected clival tissue revealed proliferation of tumor cells with slightly irregular nuclei but no mitosis...
June 6, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28580154/parry-romberg-syndrome-presenting-with-a-giant-intracranial-aneurysm-a-case-report
#6
Ilse H de Lange, Anna Mt van Oploo, Feico Jj Halbertsma, F George Roos, Levinus A Bok
A giant intracranial aneurysm was diagnosed in a 10-year-old girl when she developed a right abducens nerve palsy. The aneurysm was treated successfully. Six years later, however, she presented with a progressive en coup de sabre deformity, leading to the diagnosis Parry Romberg Syndrome (PRS), a rare diagnosis characterized by hemifacial atrophy of skin, subcutaneous tissue, skeletal muscle and bones and often associated with various non-specific intracerebral abnormalities. In this patient retrospective analysis of computed tomography and magnetic resonance imaging imaging indeed revealed intracerebral calcifications and aspecific white matter lesions...
May 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28553221/tumors-presenting-as-multiple-cranial-nerve-palsies
#7
Kishore Kumar, Rafeeq Ahmed, Bharat Bajantri, Amandeep Singh, Hafsa Abbas, Eddy Dejesus, Rana Raheel Khan, Masooma Niazi, Sridhar Chilimuri
Cranial nerve palsy could be one of the presenting features of underlying benign or malignant tumors of the head and neck. The tumor can involve the cranial nerves by local compression, direct infiltration or by paraneoplastic process. Cranial nerve involvement depends on the anatomical course of the cranial nerve and the site of the tumor. Patients may present with single or multiple cranial nerve palsies. Multiple cranial nerve involvement could be sequential or discrete, unilateral or bilateral, painless or painful...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28526001/postoperative-full-abduction-in-a-patient-of-duane-retraction-syndrome-without-an-abducens-nerve-a-case-report
#8
Jae Hyoung Kim, Jeong-Min Hwang
BACKGROUND: Duane retraction syndrome (DRS) consists of abduction deficit, globe retraction and upshoots or downshoots with adduction. The abducens nerve on the affected side is absent in type 1 DRS. After bilateral medial rectus muscle recession in unilateral type 1 DRS may improve the abduction limitation, but still more than -3 limitation remains. CASE PRESENTATION: A 6-month-old boy presented with esotropia which had been noticed in early infancy. He showed limited abduction, fissure narrowing on attempted adduction and a small upshoot OS...
May 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28521059/pediatric-clival-chordoma-a-curable-disease-that-conforms-to-collins-law
#9
Marcio S Rassi, M Maher Hulou, Kaith Almefty, Wenya Linda Bi, Svetlana Pravdenkova, Ian F Dunn, Timothy R Smith, Ossama Al-Mefty
BACKGROUND: Skull base chordomas in children are extremely rare. Their course, management, and outcome have not been defined. OBJECTIVE: To describe the preeminent clinical and radiological features in a series of pediatric patients with skull base chordomas and analyze the outcome of a cohort who underwent uniform treatment. We emphasize predictors of overall survival and progression-free survival, which aligns with Collins' law for embryonal tumors. METHODS: Thirty-one patients with a mean age of 10...
May 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28516081/a-case-of-coincidental-intrasellar-chordoma-and-pituitary-adenoma
#10
Sehoon Park, Hee Sung Kim, Ki-Su Park, Taek-Kyun Nam, Yong-Sook Park, Jeong-Taik Kwon, Kyung-Tae Kim
Although chordomas are midline tumors, primarily intrasellar chordomas are extremely rare. In this report, the authors describe the case of a 68-year-old female with partial abducens nerve palsy in the right eye due to the intrasellar cystic tumor. After endonasal trans-sphenoidal surgery, intraoperative and histopathological findings confirmed the co-occurrence of an entirely intrasellar chordoma and pituitary adenoma. To our knowledge, the present case is the third reported case of an intrasellar chordoma with a pituitary adenoma...
April 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/28514515/detailed-anatomy-of-the-abducens-nerve-in-the-lateral-rectus-muscle
#11
Yong Seok Nam, In-Beom Kim, Sun Young Shin
INTRODUCTION: The aims of this study were to elucidate the detailed anatomy of the abducens nerve in the lateral rectus muscle (LRM) and the intramuscular innervation pattern using Sihler staining. MATERIALS AND METHODS: In this cohort study, 32 eyes of 16 cadavers were assessed. Dissection was performed from the LRM origin to its insertion. The following distances were measured: from LRM insertion to the bifurcation point of the abducens nerve, from LRM insertion to the entry site of the superior branch or inferior branch, from the upper border of the LRM to the entry site of the superior branch, from the lower border of LRM to the entry site of inferior branch, and the widths of the main trunk and superior and inferior branches...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28474189/transsphenoidal-and-infralabyrinthine-approach-of-the-petrous-apex-cholesterol-granuloma
#12
Karl-Ludwig Bruchhage, Barbara Wollenberg, Anke Leichtle
Space-demanding or destructive changes in the petrous bone are often challenging differential diagnosis. Cholesterol granulomas of the petrous apex can clinically present in a combination of hearing loss, vertigo, tinnitus, chronic cephalgia, impairment of facial nerve function, neuralgic pain of the nervus trigeminus, or manifest diplopia by the nerve palsy of the nervus abducens. CT-morphologically cholesterol granulomas appear as soft-tissue density masses, which may display a discrete rim after intravenous administration of a contrast agent...
May 4, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28465275/factors-associated-with-abducens-nerve-recovery-in-patients-undergoing-surgical-resection-of-sixth-nerve-schwannoma-a-systematic-review-and-case-illustration
#13
REVIEW
Hai Sun, Kanika Sharma, Piyush Kalakoti, Jai Deep Thakur, Devi Prasad Patra, Subhas Konar, Tanmoy Maiti, Hesam Akbarian-Tefaghi, Papireddy Bollam, Christina Notarianni, Anil Nanda
BACKGROUND: Limited or no literature exists identifying factors associated with functional nerve recovery in patients undergoing resection of sixth nerve (CN VI) schwannomas. METHODS: A systematic review of literature was performed on CN VI schwannomas that were treated surgically. Synthesizing the findings pooled from the literature, we investigated associations of patient demographics and clinical characteristics with post-surgical CN VI functional recovery in multivariable regression models...
April 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28461814/isolated-abducens-palsy-as-the-first-presenting-sign-of-multiple-sclerosis
#14
Sargon Bet-Shlimon, Mill Etienne
While brain stem involvement in multiple sclerosis (MS) is relatively common, isolated cranial nerve palsies are rare, especially when they represent the initial presenting sign of a new diagnosis of MS. This report describes a patient with no prior history of MS whose sole presenting sign was an isolated abducens palsy. An enhancing pontine lesion was found on MRI which correlated with his abducens palsy, and additional nonactive lesions on MRI led to a diagnosis of MS. This case demonstrates the importance of considering MS as part of the differential diagnosis of patients with isolated cranial nerve palsies...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28461619/case-6-isolated-bilateral-abducens-nerve-palsy-after-closed-head-trauma-in-an-11-year-old-boy
#15
Nkeiruka Orajiaka, Prasanna Kapavarapu, Gulafsha Chaudhary, Leonid Topper, Logeswary Rajagopalan
No abstract text is available yet for this article.
May 2017: Pediatrics in Review
https://www.readbyqxmd.com/read/28459979/ocular-congenital-cranial-dysinnervation-disorders-ccdds-insights-into-axon-growth-and-guidance
#16
Mary C Whitman, Elizabeth C Engle
Unraveling the genetics of the paralytic strabismus syndromes known as congenital cranial dysinnervation disorders (CCDDs) is both informing physicians and their patients and broadening our understanding of development of the ocular motor system. Genetic mutations underlying ocular CCDDs alter either motor neuron specification or motor nerve development, and highlight the importance of modulations of cell signaling, cytoskeletal transport, and microtubule dynamics for axon growth and guidance. Here we review recent advances in our understanding of two CCDDs, congenital fibrosis of the extraocular muscles (CFEOM) and Duane retraction syndrome (DRS), and discuss what they have taught us about mechanisms of axon guidance and selective vulnerability...
April 28, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28454254/oculomotor-nerve-palsy-as-a-preceding-symptom-of-adult-sporadic-burkitt-lymphoma-a-case-report-and-review-of-the-literature
#17
Yun Liang, Luyin Ding, Xian Li, Weiqin Wang, Xiaohong Zhang
Adult sporadic Burkitt lymphoma (BL) is a rare aggressive neoplasm and represents ~1-5% of all lymphomas diagnosed in adults. The disease exhibits an aggressive clinical manifestation, which frequently involves the central nervous system (CNS) in the early stages, and is usually accompanied by abnormalities in cerebrospinal fluid (CSF) examinations and/or neuroradiography. The current study describes the rare case of a 29-year-old man who presented with oculomotor nerve palsy without palpated masses, B symptoms, peripheral blood anomaly and abnormalities of the nervous system...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28437527/ocular-motor-nerve-development-in-the-presence-and-absence-of-extraocular-muscle
#18
Suzanne M Michalak, Mary C Whitman, Jong G Park, Max A Tischfield, Elaine H Nguyen, Elizabeth C Engle
Purpose: To spatially and temporally define ocular motor nerve development in the presence and absence of extraocular muscles (EOMs). Methods: Myf5cre mice, which in the homozygous state lack EOMs, were crossed to an IslMN:GFP reporter line to fluorescently label motor neuron cell bodies and axons. Embryonic day (E) 11.5 to E15.5 wild-type and Myf5cre/cre:IslMN:GFP whole mount embryos and dissected orbits were imaged by confocal microscopy to visualize the developing oculomotor, trochlear, and abducens nerves in the presence and absence of EOMs...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28406779/classic-raymond-syndrome
#19
Majid Khan, Sadaf Naveed, Iqbal Haider, Mohammad Humayun, Abidullah Khan
Classic Raymond syndrome presents with abducens nerve palsy on the ipsilateral side with contralateral hemiparesis and facial nerve paralysis. A 60-year gentleman presented with deviation of left angle of mouth and right sided weakness. Examination showed that he had left sided abducens nerve palsy, with contralateral central facial paralysis and paresis. MRI of brain confirmed left pontine infarct. These findings were consistent with classic Raymond syndrome. Till now, only a few cases have been reported worldwide, this being the first case reported in South Asia...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28364580/end-organ-radiographic-manifestations-of-cranial-neuropathies-a-concise-review
#20
Vijay A Patel, Thomas T Zacharia, David Goldenberg, Johnathan D McGinn
BACKGROUND: Cranial neuropathies are a spectrum of disorders associated with dysfunction of one or more of the twelve cranial nerves and the subsequent anatomic structures they innervate. OBJECTIVE: The purpose of this article is to review radiographic imaging findings of end-organ aberrations secondary to cranial neuropathies. METHOD: All articles related to cranial neuropathies were retrieved through the PubMed MEDLINE NCBI database from January 1, 1991 to August 31, 2014...
March 23, 2017: Clinical Imaging
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