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Facial nerve dissection

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https://www.readbyqxmd.com/read/28725513/facial-nerve-schwannomas-mimicking-as-vestibular-schwannomas
#1
Beth N McNulty, Sean Wise, David S Cohen, Jason Bell, Dennis Bojrab, Michael LaRouere, Matthew Kircher, Seilesh Babu
Objective  The objective of this study was to identify preoperative and intraoperative findings that may aid in distinguishing facial nerve schwannomas (FNS) from vestibular schwannomas (VSs), particularly in cases limited to the internal auditory canal (IAC) and cerebellopontine angle (CPA). Study Design  This was a retrospective study. Setting  This study was set at a Tertiary Referral Center. Patients  Seventeen cases from October 2002 to July 2015 with an IAC/CPA mass presumed to be a VS who were found to have a FNS intraoperatively...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28712884/the-supraorbital-region-revisited-an-anatomic-exploration-of-the-neuro-vascular-bundle-with-regard-to-frontal-migraine-headache
#2
Valeria Berchtold, Hannes Stofferin, Bernhard Moriggl, Erich Brenner, Reinhard Pauzenberger, Marko Konschake
BACKGROUND: Recent findings on the pathogenesis of frontal migraine headache support, besides a central vasogenic cause, an alternative peripheral mechanism involving compressed craniofacial nerves. This is further supported by the efficiency of botulinum toxin injections as a new treatment option in frontal migraine headache patients. METHODS: The supraorbital regions of 22 alcohol-glycerine-embalmed facial halves of both sexes were dissected. Both the supratrochlear and supraorbital nerves (STN and SON, respectively) were identified, and their relationship with the corrugator supercilii muscle (CSM) was investigated by dissection and ultrasound...
June 27, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28704636/partial-superficial-superficial-and-total-parotidectomy-in-the-management-of-benign-parotid-gland-tumors-a-10-year-prospective-study-of-205-patients
#3
Panagiotis Stathopoulos, Dimosthenis Igoumenakis, William P Smith
PURPOSE: The aim of this report is to present an overview of the authors' experience in treating parotid gland tumors for a period of 10 years. This report describes patients' demographics, surgical outcomes, and complications and discusses the management of benign disease with particular emphasis on the importance of facial nerve dissection. PATIENTS AND METHODS: A total of 205 consecutive patients with different parotid gland tumors underwent surgery at Northampton General Hospital (Northampton, UK) from October 2000 to November 2010...
June 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28678580/reconstructive-subperiosteal-midface-lift-a-three-nonvisible-incision-approach
#4
Marco Sales-Sanz, Constanza Barrancos, Hae-Ryung Won-Kim, Andrea Sales-Sanz, César Colmenero
This article describes our surgical technique for subperiosteal midface elevation in patients with paralytic lower eyelid malposition or cicatricial inferior eyelid retraction. Nineteen patients with paralytic lower eyelid malposition and 15 patients with cicatricial inferior eyelid retraction underwent a subperiosteal midface lift (n = 34). The procedure was performed under local anesthesia through three nonvisible incisions. A transconjunctival incision allows preseptal dissection to the orbital rim, followed by a subperiosteal dissection of the midface...
July 5, 2017: Orbit
https://www.readbyqxmd.com/read/28662373/anastomotic-patterns-of-the-facial-parotid-plexus-pp-a-human-cadaver-study
#5
Habib Bendella, Barbara Spacca, Svenja Rink, Hans-Jürgen Stoffels, Makoto Nakamura, Martin Scaal, Heide Heinen, Orlando Guntinas-Lichius, Roland Goldbrunner, Maria Grosheva, Doychin N Angelov
Details of the human facial parotid plexus (PP) are not readily accessible during ordinary anatomical teaching because of insufficient time and difficulties encountered in the preparation. For parotid and facial nerve surgery however, precise knowledge of PP is of crucial importance. The aim of this study was therefore to provide more details of PP in anatomic specimens. Following anatomical dissection, its location, syntopy and morphology were analyzed in 158 cervico-facial halves of 95 cadavers. The facial nerve (FN) divides into a larger temporo-facial and a smaller cervico-facial trunk...
June 27, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28634493/an-exceptional-case-of-intraparotid-plexiform-neurofibroma-originating-from-autonomic-fibers-of-the-auriculotemporal-nerve
#6
Sarantis Blioskas, Sotiris Sotiriou, Katerina Rizou, Triantafyllia Koletsa, Petros Karkos, Anna Kalogera-Fountzila, Konstantinos Markou
Plexiform neurofibromas are benign tumors that tend to occur in patients suffering from neurofibromatosis type 1 (NF-1). This report addresses a rare case where the tumor affected the parotid gland, deriving almost exclusively from the peripheral portion of the facial nerve. A 6-year-old male was referred to us complaining about a gradually enlarging swelling over the right parotid area. Imaging localized the lesion to the superficial lobe of the parotid gland, suggesting a neurofibroma. Cosmetic disfigurement and a functional deficit led us to perform complete surgical resection...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28615814/an-anatomical-study-for-localisation-of-zygomatic-branch-of-facial-nerve-and-masseteric-nerve-an-aid-to-nerve-coaptation-for-facial-reanimation-surgery-a-cadaver-based-study-in-eastern-india
#7
Ratnadeep Poddar, Alipta Bhattacharya, Iman Sinha, Asis Kumar Ghosal
CONTEXT: In cases of chronic facial palsy, where direct neurotisation is possible, ipsilateral masseteric nerve is a very suitable motor donor. We have tried to specifically locate the masseteric nerve for this purpose. AIMS: Describing an approach of localisation and exposure of both the zygomatic branch of Facial nerve and the nerve to masseter, with respect to a soft tissue reference point over face. SETTINGS AND DESIGN: Observational cross sectional study, conducted on 12 fresh cadavers...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28597346/the-rate-of-facial-nerve-dysfunction-and-time-to-recovery-after-intraparotid-and-extraparotid-facial-nerve-exposure-and-protection-in-head-and-neck-cutaneous-tumor-surgery
#8
Yasuhiro Nakamura, Yukiko Teramoto, Yuri Asami, Taichi Imamura, Sayuri Sato, Ryota Tanaka, Hiroshi Maruyama, Yoshiyuki Nakamura, Yasuhiro Fujisawa, Manabu Fujimoto, Akifumi Yamamoto
BACKGROUND: Most patients with head and neck skin tumors present with normal facial nerve function. A common treatment strategy for these patients is facial nerve preservation surgery, although the degree to which the nerve is successfully preserved is still unclear. Data on the incidence and recovery of facial nerve dysfunction are woefully lacking in the field of dermato-oncology. METHODS: In 23 patients with normal preoperative facial nerve function, we retrospectively reviewed twenty-six head and neck surgical interventions that included facial nerve exposure and protection, focusing particularly on the differences in outcome between intraparotid and extraparotid exposure of the facial nerve branches...
June 9, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28578308/an-unusual-position-of-retromandibular-vein-a-surgical-challenge-in-parotid-surgeries
#9
Prasanna Kumar Saravanam, Vinoth Manimaran
A 44-year-old man presented with swelling in the left parotid region. The swelling was firm and Fine Needle Aspiration Cytology report proved pleomorphic adenoma. In the CT scan, the tumour was confined to the superficial lobe of parotid. So, left superficial parotidectomy was planned. Modified Wilson Blair's incision was used. On course of identifying the facial nerve, a large calibre vein was identified running vertically through the parotid substance. Assuming it as retromandibular vein, further dissection was carried out more meticulously...
June 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28576712/preserving-the-facial-nerve-during-the-orbitozygomatic-craniotomy-surgical-anatomy-assessment-and-stepwise-illustration
#10
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Jj González Sánchez, Arnau Benet
OBJECTIVE: Surgical safety and efficiency during an OZ osteotomy rely on thorough knowledge of the surgical anatomy of the facial nerve. Although the anatomy of the facial nerve and its relation to the pterional craniotomy are described, a thorough assessment of facial nerve preservation techniques during the OZ approach and its variations is lacking. We assessed the surgical anatomy of the facial nerve related to the OZ and provided a thorough stepwise description on how to preserve it...
May 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28552738/dumbbell-shape-hydatid-cyst-of-meckel-cave-extending-to-cerebellopontine-angle-and-middle-fossa-surgical-technique-and-outcome-of-rare-case
#11
Mousa Taghipour, Arash Saffarrian, Fariborz Ghaffarpasand, Negar Azarpira
BACKGROUND: Cerebral hydatid cyst is among the rare presentations of echinococcosis. Almost all the reported cases of intracranial hydatid cysts are in the cortical regions (parietal lobe in the territory of the middle cerebral artery), and all have been removed surgically using the water jet dissection technique. However, in locations in which there are several neuronal structures, such as the cerebellopontine angle, this method might not be applicable. CASE DESCRIPTION: A 62-year-old lady presented to our outpatient clinic with left-sided facial deviation, inability to close the eyes, and diplopia since a month before...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28534074/facial-nerve-sparing-surgery-for-large-vestibular-schwannomas
#12
Paolo Ferroli, Lorenzo Bosio, Morgan Broggi
BACKGROUND: Nowadays, there is a general trend in vestibular schwannoma (VS) surgery favoring near-total or subtotal tumor resection (NTR/STR) with facial nerve (FN) function preservation rather than gross total resection (GTR) with high risk of FN damage. METHODS: The surgical technique of FN sparing in large VS includes patient-tailored image-guided craniotomy, continuous intraoperative neurophysiological monitoring (INM), intracapsular wide tumor debulking, and only final extracapsular dissection with FN course identification and brainstem decompression...
July 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28521360/exposure-of-the-external-carotid-artery-through-the-posterior-triangle-of-the-neck-a-novel-approach-to-facilitate-bypass-procedures-to-the-posterior-cerebral-circulation
#13
Ali Tayebi Meybodi, Michael T Lawton, Pooneh Mokhtari, Olivia Kola, Ivan H El-Sayed, Arnau Benet
BACKGROUND: The external carotid artery (ECA) is the main high-flow donor for extracranial-intracranial revascularization procedures. However, anatomic restraints limit the availability of ECA in posterior exposures of the craniocervical junction aimed for bypass to distal vertebral artery segments. OBJECTIVE: To examine the feasibility and safety of exposure of the ECA through the posterior triangle of the neck. METHODS: A preliminary feasibility study on the posterior neck exposure of the ECA was performed in 1 cadaveric head (2 sides) followed by a morphometric study on 9 cadaveric heads (18 sides)...
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28446044/extracapsular-dissection-for-warthin-tumor-in-the-tail-of-parotid-gland
#14
Dong Hoon Lee, Tae Mi Yoon, Joon Kyoo Lee, Sang Chul Lim
CONCLUSIONS: Extracapsular dissection conferred the advantage of reduced operation time and morbidity without any recurrence, and it could be considered as the treatment of choice for Warthin tumors in the tail of the parotid gland. OBJECTIVE: The purpose of this study is to confirm the appropriate surgical procedure for Warthin tumor in the tail of the parotid gland, by comparing the results of extracapsular dissection and superficial parotidectomy. MATERIALS AND METHODS: The medical records of 72 patients with Warthin tumor in the tail of the parotid gland who underwent surgery between January 2006 and December 2016 were retrospectively reviewed...
April 27, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28443600/retroauricular-approach-for-targeted-cochlear-therapy-experiments-in-wistar-albino-rats
#15
Selçuk Mülazımoğlu, Emre Ocak, Gülşah Kaygusuz, Mustafa Kürşat Gökcan
BACKGROUND: As the idea of stem cell technology in the treatment of sensorial hearing loss has emerged over the past decades, the need for in vivo models for related experiments has become explicit. One of the most common experimental models for inner ear stem cell delivery experiments is the Wistar albino rat. AIMS: To investigate the surgical anatomy of the temporal bone of the Wistar albino rat with respect to the dissection steps, operative techniques and potential pitfalls of surgery...
May 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28409723/role-of-electrophysiology-in-guiding-near-total-resection-for-preservation-of-facial-nerve-function-in-the-surgical-treatment-of-large-vestibular-schwannomas
#16
Daniele Bernardeschi, Nadya Pyatigorskaya, Antoine Vanier, Franck Bielle, Mustapha Smail, Georges Lamas, Olivier Sterkers, Michel Kalamarides
OBJECTIVE In large vestibular schwannoma (VS) surgery, the facial nerve (FN) is at high risk of injury. Near-total resection has been advocated in the case of difficult facial nerve dissection, but the amount of residual tumor that should be left and when dissection should be stopped remain controversial factors. The objective of this study was to report FN outcome and radiological results in patients undergoing near-total VS resection guided by electromyographic supramaximal stimulation of the FN at the brainstem...
April 14, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28383680/intended-near-total-removal-of-koos-grade-iv-vestibular-schwannomas-reconsidering-the-treatment-paradigm
#17
Daniel Walter Zumofen, Tommaso Guffi, Christian Epple, Birgit Westermann, Anna-Katharina Krähenbühl, Susanne Zabka, Ethan Taub, Daniel Bodmer, Luigi Mariani
BACKGROUND: The goals of treating Koos grade IV vestibular schwannomas are to relieve brainstem compression, preserve or restore neurological function, and achieve long-term tumor control while minimizing tumor- and treatment-related morbidity. OBJECTIVE: To propose a treatment paradigm involving the intentional near-total removal of Koos grade IV vestibular schwannomas, in which a small amount of residual tumor is not dissected off the cisternal portion of the facial nerve...
April 5, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28317283/radiological-and-microsurgical-anatomy-for-variation-of-the-mandible-comparative-study-of-human-and-macaca-fascicularis
#18
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Yoko Tabira, Eishi Hirasaki, Christian Fisahn, R Shane Tubbs, Jingo Kusukawa, Koh-Ichi Yamaki
Recent studies using cone-beam computer tomography (CBCT) have added to our understanding of anatomical variation in the mandible of humans. However, the distribution of nerves cannot be revealed by CBCT. There have been investigations of the distribution of nerves relating to the mandible, but some proposed causes of these variations remain controversial. In this study, we observed a total of 10 sides from five mandibles of Macaca fascicularis of unknown age and sex using CBCT and dissection under stereomicroscopy...
March 20, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28301982/effects-of-glass-ionomer-cement-on-facial-nerve-a-clinical-and-histopathologic-evaluation
#19
Rauf Oguzhan Kum, Sezer Kulacoglu
OBJECTIVE: The aim of this study was to investigate the clinical and histopathologic effects of glass ionomer cement (GIC) on facial nerve. METHODS: Eight Wistar albino rats were included in the study. Under general anesthesia, bilateral facial nerves of rats were dissected. Saline was injected into right facial nerves, while GIC was dropped on left facial nerves. Facial nerve functions of the rats were evaluated using mustache and bling reflex scores everyday along 14 days...
March 16, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28293514/platysma-motor-nerve-transfer-for-restoring-marginal-mandibular-nerve-function
#20
Andres Rodriguez-Lorenzo, David Jensson, Wolfgang J Weninger, Melanie Schmid, Stefan Meng, Chieh-Han John Tzou
BACKGROUND: Injuries of the marginal mandibular nerve (MMN) of the facial nerve result in paralysis of the lower lip muscle depressors and an asymmetrical smile. Nerve reconstruction, when possible, is the method of choice; however, in cases of long nerve gaps or delayed nerve reconstruction, conventional nerve repairs may be difficult to perform or may provide suboptimal outcomes. Herein, we investigate the anatomical technical feasibility of transfer of the platysma motor nerve (PMN) to the MMN for restoration of lower lip function, and we present a clinical case where this nerve transfer was successfully performed...
December 2016: Plastic and Reconstructive Surgery. Global Open
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