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Trochlear Nerve

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https://www.readbyqxmd.com/read/28302606/trochlear-groove-and-trochlear-cistern-useful-anatomic-landmarks-for-identifying-the-tentorial-segment-of-cranial-nerve-iv-on-mri
#1
P M Bunch, H R Kelly, D A Zander, H D Curtin
BACKGROUND AND PURPOSE: The trochlear groove and trochlear cistern are anatomic landmarks closely associated with the tentorial segment of cranial nerve IV. The purposes of this study were to describe the MR imaging appearances of the trochlear groove and trochlear cistern and to test our hypothesis that knowledge of these anatomic landmarks facilitates identification of cranial nerve IV in routine clinical practice. MATERIALS AND METHODS: For this retrospective study, consecutive MR imaging examinations of the sinuses performed in 25 patients (50 sides) at our institution were reviewed...
March 16, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28301858/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#2
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are 2 of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently, opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA or THA pain. Recently, issues including efficacy, dependence, overdose, and death from opiates have made clinicians and researchers more critical of use of opioids for treating nonmalignant skeletal pain...
April 2017: Pain
https://www.readbyqxmd.com/read/28296553/a-comparative-study-of-oculomotor-trochlear-and-abducens-nerves-in-arabian-foals
#3
D Bolat, D Yıldız, S Bahar, S Yürüker, F Kaymaz, C Ilgın, E Ü Bozkurt, S Karahan, S S Sabancı
We investigated the microscopic structure of transverse sections of the oculomotor, trochlear and abducens nerves of Arabian foals using stereological methods. Bilateral nerve pairs from 2-month-old female Arabian foals were analyzed. The tissues were embedded in plastic blocks, then 1 µm thick sections were cut and stained with osmium tetroxide and methylene blue-azure II. Stereology was performed using light microscopy. Morphometry showed that the right and left pairs of nerves were similar. The transverse sectional areas of the oculomotor, trochlear and abducens nerves were 1...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28277775/trochlear-nerve-palsy
#4
Paul Morillon, Fion Bremner
No abstract text is available yet for this article.
March 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28215457/synchronous-ipsilateral-cavernous-malformations-of-the-trochlear-nerve
#5
Christopher S Graffeo, William R Copeland, Perkins Mukunyadzi, Ali F Krisht
BACKGROUND: Cranial nerve cavernous malformations (CM) are rare benign congenital vascular anomalies, with approximately 44 preceding cases in the literature. We report the fifth case of trochlear CM, as well as the first instance of two discrete CM occurring simultaneously along the same cranial nerve. METHODS: Case report. RESULTS: A fifty-seven year-old man presented with several years of diplopia; physical examination identified a complete left trochlear nerve paralysis...
February 16, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28035290/pathological-location-of-cranial-nerves-in-petroclival-lesions-how-to-avoid-their-injury-during-anterior-petrosal-approach
#6
Hamid Borghei-Razavi, Ryosuke Tomio, Seyed-Mohammad Fereshtehnejad, Shunsuke Shibao, Uta Schick, Masahiro Toda, Kazunari Yoshida, Takeshi Kawase
Objectives Numerous surgical approaches have been developed to access the petroclival region. The Kawase approach, through the middle fossa, is a well-described option for addressing cranial base lesions of the petroclival region. Our aim was to gather data about the variation of cranial nerve locations in diverse petroclival pathologies and clarify the most common pathologic variations confirmed during the anterior petrosal approach. Method A retrospective analysis was made of both videos and operative and histologic records of 40 petroclival tumors from January 2009 to September 2013 in which the Kawase approach was used...
February 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28009632/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#7
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/27987508/-analysis-of-anterolateral-approach-and-lateral-approach-for-the-treatment-of-coronal-shear-fracture-of-the-distal-humeral
#8
Y Li, Y J Cha, T Li, M Q Gong, X Y Jiang
OBJECTIVE: To treat the coronal shear fracture of the distal humeral during open reduction and internal fixation by anterolateral approach and lateral approach, and to analyze the advantage and disadvantage of each approach. METHODS: From September 2006 to July 2014, 10 patients with coronal fracture of the distal humeral were analyzed, who were all treated with Open Reduction and Internal Fixation (ORIF), 5 with anterolateral approach (group A) and 5 with lateral approach (group B)...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27984493/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#9
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/27928382/isolated-fourth-nerve-palsy-in-tuberculous-meningitis
#10
María García-Zamora, Hortensia Sánchez-Tocino, Ana Villanueva-Gómez, José Miguel Angles-Deza, Elena Pérez-Gutierrez
Tuberculous meningitis is a type of subacute meningitis and like other intracranial processes can compromise ocular motor nerves, causing palsies. Trochlear nerve is an unusual isolated manifestation in this type of pathology. The authors report a 5-year-old boy presented in their clinic with a trochlear nerve palsy as unique neurological manifestation of tuberculous meningitis. Treatment with complete anti-tuberculous therapy and botulinum A toxin was needed to get the complete resolution of the nerve palsy...
February 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27876660/total-resection-of-brainstem-extension-of-tentorial-schwannoma-using-an-occipital-transtentorial-approach
#11
Liu Xinrui, Yuichi Sato, Mitsuru Dan, Hiroki Kuroda, Toshihiro Kumabe
BACKGROUND: Approximately 60 cases of schwannoma unrelated to the cranial nerve have been reported, and only 12 arose from the tentorium. We present a case of tentorial schwannoma extending into the pons and midbrain without cranial nerve involvement, which was almost totally resected with an occipital transtentorial approach. CASE DESCRIPTION: A 37-year-old man was admitted to our institution with memory disturbance beginning 2 years ago and gait disturbance from 1 year ago...
February 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27851717/central-trochlear-palsy-report-of-two-patients-with-ipsilesional-palsy-and-review-of-the-literature
#12
Seong-Hae Jeong, Sung-Hee Kim, Seung-Han Lee, Seong-Ho Park, Hyo-Jung Kim, Ji-Soo Kim
BACKGROUND: The trochlear (fourth) nerve is the only cranial nerve that decussates before emerging from the posterior aspect of the brainstem. Lesions involving the trochlear nucleus or fascicles mostly give rise to contralesional superior oblique palsy (SOP). METHODS: We report 2 patients with SOP on the side of intraaxial lesions with a literature review on central trochlear palsy. RESULTS: The lesions are more commonly located posterior to the cerebral aqueduct in patients with ipsilesional SOP than in those with contralesional SOP...
December 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27715436/midline-and-off-midline-infratentorial-supracerebellar-approaches-to-the-pineal-gland
#13
Satoshi Matsuo, Serhat Baydin, Abuzer Güngör, Koichi Miki, Noritaka Komune, Ryota Kurogi, Koji Iihara, Albert L Rhoton
OBJECTIVE A common approach to lesions of the pineal region is along the midline below the torcula. However, reports of how shifting the approach off midline affects the surgical exposure and relationships between the tributaries of the vein of Galen are limited. The purpose of this study is to examine the microsurgical and endoscopic anatomy of the pineal region as seen through the supracerebellar infratentorial approaches, including midline, paramedian, lateral, and far-lateral routes. METHODS The quadrigeminal cisterns of 8 formalin-fixed adult cadaveric heads were dissected and examined with the aid of a surgical microscope and straight endoscope...
October 7, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27607129/trochlear-nerve-schwannoma-with-repeated-intratumoral-hemorrhage
#14
Pengfei Liu, Yuhai Bao, Wenchuan Zhang
Trochlear nerve schwannoma is extremely rare, with only 35 pathologically confirmed patients being reported in the literature. Here, the authors report a patient of trochlear nerve schwannoma in the prepontine cistern manifesting as facial pain and double vision and presenting the image characteristics of repeated intratumoral hemorrhage, which has never been reported in the literature. Total tumor along with a portion of the trochlear nerve was removed by using a retrosigmoid approach. Facial pain disappeared after operation, and the diplopia remained...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27601738/intra-operative-electrooculographic-monitoring-to-prevent-post-operative-extraocular-motor-nerve-dysfunction-during-skull-base-surgeries
#15
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/27586875/schwannoma-of-the-trochlear-nerve-an-illustrated-case-series-and-a-systematic-review-of-management
#16
Nurhan Torun, Yosef Laviv, Kianush Karimian Jazi, Anand Mahadevan, Rafeeque A Bhadelia, Anderson Matthew, Mitchell Strominger, Ekkehard M Kasper
Schwannomas of cranial nerves in the absence of systemic neurofibromatosis are relatively rare. Among these, schwannomas of the trochlear nerve are even less common. They can be found incidentally or when they cause diplopia or other significant neurological deficits. Treatment options include observation only, neuro-ophthalmological intervention, and/or neurosurgical management via resection or sterotactic radiosurgery (SRS). In recent years, the latter has become an attractive therapeutic tool for a number of benign skull base neoplasm including a small number of reports on its successful use for trochlear Schwannomas...
September 1, 2016: Neurosurgical Review
https://www.readbyqxmd.com/read/27538163/-microsurgical-management-of-petroclival-meningiomas-combined-trans-subtemporal-and-suboccipital-retrosigmoid-keyhole-approach
#17
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/27496528/pineal-region-schwannoma-arising-from-the-trochlear-nerve
#18
Nauman S Chaudhry, Faiz U Ahmad, Jacques J Morcos
Schwannomas arising from the trochlear nerve are very rare and to our knowledge, less than 35 histologically documented cases have been reported in the literature. There are no reports of a schwannoma in the pineal region. We report a 24-year-old woman who underwent a para-occipital trans-tentorial approach and gross total excision of a pineal region schwannoma arising from the trochlear nerve. This is the first such reported case.
October 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27482355/histomorphogenesis-of-cranial-nerves-in-huso-huso-larvae
#19
Sherma Tavighi, Zohreh Saadatfar, Bahador Shojaei, Morteza Behnam Rassouli
In this study the cranial nerves development of H. huso are explained from 1 to 54-days-old (1, 3, 6, 15, 21 and 54 days). Despite all the researches on fish brain, there are no study on nerves evolution on H. huso during their larvae life. For this research 40 samples of larvae H. huso were obtained (from each age, about six samples were selected). The specimens were maintained in fiberglass tank, then histological samples were taken from tissues and stained with hematoxylin and eosin for general histological studies using light microscope...
2016: Veterinary Research Forum
https://www.readbyqxmd.com/read/27424045/isolated-schwannoma-involving-extraocular-muscles
#20
Fatma Yulek, Joseph L Demer
BACKGROUND: Progressive strabismus initially considered idiopathic may be caused by isolated schwannomas of motor nerves to extraocular muscles, detectable only on careful imaging. This study reviewed clinical experience of a referral practice in identifying schwannomas on magnetic resonance imaging (MRI). METHODS: We reviewed 647 cases imaged for strabismus to identify presumed cranial nerve schwannomas, identified by gadodiamide-enhanced, high-resolution surface coil orbital MRI and thin-section cranial MRI...
August 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
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