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Facial nerve dissection

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https://www.readbyqxmd.com/read/27897128/defining-the-limits-of-endoscopic-access-to-internal-auditory-canal
#1
Adam Master, Mickie Hamiter, Maura Cosetti
OBJECTIVE: To quantify surgical access to the internal auditory canal (IAC) using an exclusively endoscopic transcanal approach (EETA) and investigate surgically relevant relationships with neurovascular and osseous landmarks of the temporal bone. MATERIALS AND METHODS: Anatomical dissection of two paired temporal bones and 15 unpaired temporal bones was performed using an exclusively endoscopic approach to IAC. The dissection proceeded until the cerebellopontine angle (CPA) could be accessed...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27896425/probability-and-pattern-of-occult-cervical-lymph-node-metastases-in-primary-parotid-carcinoma
#2
Dominik Stodulski, Bogusław Mikaszewski, Hanna Majewska, Piotr Wiśniewski, Czesław Stankiewicz
The present study was undertaken to evaluate real probability and pattern of cervical occult lymph node metastases (OLNM) in primary parotid carcinoma (PPC). We carried out a retrospective analysis of 66 patients treated in years 1992-2010 due to PPC, who underwent elective neck dissection (END). In search of risk factors for OLNM, we analysed the following parameters: age, sex, pT-Status, tumour size, skin invasion, facial nerve palsy, tumour fixation, extraparotid extension, localization, grade, histology, intra/periparotid LN metastases (IPLNM)...
November 28, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27893549/how-deleterious-is-facial-nerve-dissection-for-the-facial-nerve-in-parotid-surgery-an-electrophysiological-evaluation
#3
Sabri Baki Eren, Remzi Dogan, Orhan Ozturan, Bayram Veyseller, Ayşenur Meriç Hafiz
OBJECTIVE: This study was conducted to investigate subclinical electrophysiological deleterious effect due to microtrauma to the nerve in response to the dissection of a tumor and parotid tissue from the facial nerve and its branches and surgical traction experienced during the operation. METHODS: The study included 34 adult patients who underwent parotidectomy operations under intraoperative facial nerve monitoring. Three measurements were taken from each patient to evaluate facial nerve functions, with 3 stimuli of different intensities applied with different timing...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27888641/carotid-artery-and-lower-cranial-nerve-exposure-with-increasing-surgical-complexity-to-the-parapharyngeal-space
#4
Ana M Lemos-Rodriguez, Satyan B Sreenath, Rounak B Rawal, Lewis J Overton, Zainab Farzal, Adam M Zanation
OBJECTIVES/HYPOTHESIS: To investigate the extent of carotid artery exposure attained, including the identification of the external carotid branches and lower cranial nerves in five sequential external approaches to the parapharyngeal space, and to provide an anatomical algorithm. STUDY DESIGN: Anatomical study. METHODS: Six latex-injected adult cadaver heads were dissected in five consecutive approaches: transcervical approach with submandibular gland removal, posterior extension of the transcervical approach, transcervical approach with parotidectomy, parotidectomy with lateral mandibulotomy, and parotidectomy with mandibulectomy...
November 26, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27858390/eagle-syndrome-presented-with-neurological-symptoms
#5
Elçin Aydin, Hüseyin Quliyev, Celal Çinar, Halil Bozkaya, İsmail Oran
AIM: Eagle syndrome is a rare entity that causes recurrent throat pain, neck pain, dysphagia, or facial pain by elongated styloid process or calcified stylohyoid ligament. Clinical findings related to the lower cranial nerves compression have also been reported. In some cases it is reported that carotid artery compression or dissection can be seen due to elongated styloid process and it is called carotid artery syndrome. Carotid artery compression causes flow reduction and carotidynia or neurological symptoms can be seen...
October 14, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27833706/variant-anatomy-of-the-nasal-and-labial-branches-of-the-infraorbital-nerve
#6
Joseph Munyiri Nderitu, Fawzia Butt, Hassan Saidi
Comprehensive understanding of the variations in the branches of the infraorbital nerve (ION) is vital to the prevention of iatrogenic nerve injury and successful ION blockade during orbitozygomatic facial procedures. Only a few studies exist on the variant anatomy of the branching patterns of this nerve. This article provides a detailed description of the variations of the nasal and superior labial branches of the ION. This study was performed on 84 IONs by dissecting 42 formalin-fixed cadavers from the Laboratory of Topographic Anatomy, Department of Human Anatomy, University of Nairobi...
November 2016: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/27806782/-modified-minimally-invasive-video-assisted-lateral-neck-dissection-for-papillary-thyroid-carcinoma-a-series-of-130-cases
#7
D G Zhang, L Gao, L Xie, G F He, L Fang, J Chen, Y W Miao, Z Z Wang
Objective: To discuss the feasibility, safety and oncologic completeness of modified minimally invasive video-assisted lateral neck dissection (MIVALND) for papillary thyroid carcinoma. Methods: Data of 130 patients from Department of Head and Neck Surgery, Sir Run Run Shaw Hospital, Medical School, Zhejiang University undergoing MIVALND from January 2013 to September 2015 were reviewed retrospectively. There were 31 male and 99 female patients with the mean age of (39±11) years. The thyroidectomy and central compartment dissection were performed under a direct visual field or video-assisted (VA) approach, lateral neck dissection was performed via the VA approach...
November 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27787268/anatomy-of-the-cervicomental-region-insights-from-an-anatomy-laboratory-and-roundtable-discussion
#8
Jeffrey M Kenkel, Derek H Jones, Steven Fagien, Dee Anna Glaser, Gary D Monheit, Karen Stauffer, Jonathan M Sykes
In 2015, ATX-101 (deoxycholic acid injection; Kybella in the United States and Belkyra in Canada; Kythera Biopharmaceuticals, Inc., Westlake Village, CA [an affiliate of Allergan plc, Dublin, Ireland]) was approved as a first-in-class injectable drug for reduction of submental fat. Use of a pharmacologic/injectable therapy within the submental region requires a thorough understanding of cervicomental anatomy to ensure proper injection technique and safe administration. To this end, an anatomy laboratory was conducted to review key external landmarks and important internal anatomic structures that characterize the lower face and anterior neck...
November 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27750049/local-rhomboid-flap-reconstruction-for-skin-defects-after-excising-large-parotid-gland-tumors
#9
Min-Hui Hung, Chun-Ta Liao, Chung-Jan Kang, Shiang-Fu Huang
Most parotid tumors grow slowly, and sometimes these patients do not request surgical treatment until the tumors become large and affect their appearance. The surgical treatment of these large tumors is usually accompanied by large skin defects after excision, and it is challenging for surgeons to close the defect primarily. This report describes the case of a 68-year-old man with a left parotid gland tumor (largest dimension, 110 mm) and the case of a 79-year-old man with a left parotid gland tumor measuring approximately 77 mm that had existed for decades...
September 21, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27742375/combined-isolated-trigeminal-and-facial-neuropathies-from-perineural-invasion-by-squamous-cell-carcinoma-a-case-series-and-review-of-the-literature
#10
Pierre R Bourque, Gabrielle Bourque, William Miller, John Woulfe, Jodi Warman Chardon
Perineural invasion is a targeted cellular proliferation guided by neurotrophins, rather than a simple diffusion of tumor in a path of least resistance. Invasion of cranial nerves by squamous cell carcinoma can represent an important diagnostic dilemma. It commonly presents as a distinct clinical neurological syndrome of combined isolated trigeminal and facial neuropathies. The focal cancer source may have been overlooked or remain occult. This case series illustrates diverse clinical presentations and neuroimaging challenges in four patients with squamous cell carcinoma of the cranial nerves...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27740958/the-spinal-accessory-nerve-for-functional-muscle-innervation-in-facial-reanimation-surgery-an-anatomical-and-histomorphometric-study
#11
Eva Placheta, Ines Tinhofer, Melanie Schmid, Lukas F Reissig, Igor Pona, Wolfgang Weninger, Thomas Rath, David Chwei-Chin Chuang, Chieh-Han John Tzou
INTRODUCTION: Facial reanimation surgery is performed in severe cases of facial palsy to restore facial function. In a 1-stage procedure, the spinal accessory nerve can be used as a donor nerve to power a free gracilis muscle transplant for the reanimation of the mouth. The aim of this study was to describe the surgical anatomy of the spinal accessory nerve, provide a guide for reliable donor nerve dissection, and analyze the available donor axon counts. METHODS: Dissections were performed on 10 nonembalmed cadavers (measurements of 20 nerves)...
October 6, 2016: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27714466/how-i-do-it-the-pedicled-temporoparietal-fascia-flap-for-skull-base-reconstruction-after-endonasal-endoscopic-approaches
#12
Mathieu Veyrat, Benjamin Verillaud, Philippe Herman, Damien Bresson
BACKGROUND: Endoscopic endonasal approaches (EEA) are an alternative for removing challenging nasopharyngeal or skull base lesions. In some cases, a nasoseptal flap (NSF) is not always available and such complex procedures may lead to carotid arteries exposition and/or dura mater (DM) wide opening. Meticulous carotid coverage and DM reconstruction are crucial for preventing early and delayed complications. METHOD: We propose a step-by-step description of the pedicled temporoparietal fascia flap (TPFF) technique, with a focus on its pitfalls, advantages and limits...
October 7, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27699055/a-rare-presentation-of-spontaneous-internal-carotid-artery-dissection-with-horner-s-syndrome-viith-xth-and-xiith-nerve-palsies
#13
Azer Majeed, Nuno Pedro Lobato Ribeiro, Asem Ali, Mohsen Hijazi, Hina Farook
Spontaneous internal carotid artery dissection (sICAD) is an uncommon cause of isolated cranial nerve palsies. Commonly patients present with stroke, headache, facial pain and Horner's syndrome, with upto 16% having cranial nerve palsies. We present the case of a 55-year-old man who presented with hoarseness, dysphagia and tongue swelling, mimicking a tongue base tumor. He was found to have unilateral VIIth, Xth and XIIth nerve palsies with Horner's syndrome. Magnetic resonance imaging showed high signal changes and loss of signal void in right internal carotid artery, later confirmed by Angiography as a dissection with pseudo-aneurysm...
October 2016: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/27692201/reconstruction-of-the-sympathetic-chain
#14
Cliff P Connery
There is a small subset of patients who have undergone endoscopic thoracic sympathectomy for hyperhidrosis or facial blushing who are dissatisfied and would wish reversal. Compensatory sweating is the most common side effect that causes a person to regret surgery. Treatment options are limited and usually not effective in patients with severe side effects from sympathectomy. Nerve graft interposition has been proven to be effective in experimental models and small clinical series. Da Vinci robotic nerve graft reconstruction with interposition graft and direct suturing of nerve and high magnification dissection most closely mirrors standard nerve reconstruction principles when done as a minimally invasive procedure...
November 2016: Thoracic Surgery Clinics
https://www.readbyqxmd.com/read/27677201/body-proportions-as-possible-predictors-for-free-gracilis-one-stage-facial-reanimation
#15
M Bohac, M Palkovic, J Fedeles, J Hodosy
BACKGROUND: Gracilis muscle and its motor nerve belongs to most commonly used flap for facial reanimation. However, it is performed in two steps, which is time consuming. One stage technique can be also performed, but the length of the motor nerve cannot be currently determined before surgery. AIM: The present study was conducted in order to evaluate the body composition on the length and suitability of the motor nerve of gracilis muscle for one stage facial reanimation...
2016: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/27665952/the-myloglossus-in-a-human-cadaver-study-common-or-uncommon-anatomical-structure
#16
Barbara Buffoli, Marco Ferrari, Francesco Belotti, Davide Lancini, Marco Angelo Cocchi, Mauro Labanca, Manfred Tschabitscher, Rita Rezzani, Luigi Fabrizio Rodella
Additional extrinsic muscles of the tongue are reported in literature and one of them is the myloglossus muscle (MGM). Since MGM is nowadays considered as anatomical variant, the aim of this study is to clarify some open questions by evaluating and describing the myloglossal anatomy (including both MGM and its ligamentous counterpart) during human cadaver dissections. Twenty-one regions (including masticator space, sublingual space and adjacent areas) were dissected and the presence and appearance of myloglossus were considered, together with its proximal and distal insertions, vascularisation and innervation...
September 26, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27665498/anastomosis-between-the-transverse-cervical-nerve-and-marginal-mandibular-nerve-how-often-does-it-occur
#17
P A Brennan, A S Elhamshary, P Alam, R Anand, M Ammar
Anastomoses in the neck between the sensory transverse cervical nerve (C2,3) and the cervical branch of the facial nerve are common, but communications with more superior branches of the facial nerve are rare. After we had identified a case where the transverse cervical nerve joined the marginal mandibular branch of the facial nerve in the submandibular triangle during a selective neck dissection, we searched for this variant in 86 neck dissections to see if it occurs more often than expected. We found it in one further patient...
September 21, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27632395/facial-nerve-axonal-analysis-and-anatomic-localization-in-donor-nerve-optimizing-axonal-load-for-cross-facial-nerve-grafting-in-facial-reanimation
#18
Austin Hembd, Purushottam A Nagarkar, Salim Saba, Dinah Wan, J Walter Kutz, Brandon Isaacson, Sachin Gupta, Charles L White, Rod J Rohrich, Shai M Rozen
PURPOSE: Donor nerve axonal count over 900 in two-stage reconstructions using cross facial nerve grafts is possibly associated with improved outcomes in facial reanimation. Facial nerve axonal analysis was performed to determine the ideal location for optimizing axonal load. Correlation between axonal number, branch diameter, and age was also assessed. METHODS: 28 fresh unpreserved cadaveric hemi-faces were dissected exposing the extracranial facial nerve branches...
September 14, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27626078/how-to-avoid-facial-nerve-injury-in-mastoidectomy
#19
REVIEW
Nam-Gyu Ryu, Jin Kim
Unexpected iatrogenic facial nerve paralysis not only affects facial disfiguration, but also imposes a devastating effect on the social, psychological, and economic aspects of an affected person's life at once. The aims of this study were to postulate where surgeons had mistakenly drilled or where obscured by granulations or by fibrous bands and to look for surgical approach with focused on the safety of facial nerve in mastoid surgery. We had found 14 cases of iatrogenic facial nerve injury (IFNI) during mastoid surgery for 5 years in Korea...
September 2016: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/27614443/quantitative-assessment-of-surgical-anatomy-and-three-dimensional-relationships-in-the-supralabyrinthine-space
#20
Yusu Ni, Kaishi Wang, Yi Jiang, Ren Zhou, Yan Sha, Huawei Li
OBJECTIVE: To explore and quantify the surgically relevant anatomic relationships and three-dimensional (3D) morphology of the supralabyrinthine space, and enable a deeper, clearer understanding of its regional anatomy. MATERIALS AND METHODS: 3D-DOCTOR software was used to create a 3D reconstruction of the axial CT images and multiplanar reformatting of 55 slices of temporal bone in 29 patients (17 males and 12 females), whose average age was 38.69 ± 17.81 years...
September 10, 2016: ORL; Journal for Oto-rhino-laryngology and its related Specialties
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