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facial nerve monitoring

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https://www.readbyqxmd.com/read/28319315/maxillofacial-features-and-systemic-malformations-in-expanded-spectrum-hemifacial-microsomia
#1
Noah Cohen, Erica Cohen, Alberto Gaiero, Silvia Zecca, Graziella Fichera, Federica Baldi, Joseph Felix Giordanetto, Jacques Marie Mercier, Amnon Cohen
Hemifacial microsomia (HFM) is a rare, multisystemic congenital disease with estimated frequency of 1/26370 births in Europe. Most cases are sporadic and caused by unilateral abnormal morphogenesis of the first and second pharyngeal arches. The aim of this study is to define the types and frequency of maxillofacial and systemic malformations in HFM patients. This is a case series study of patients with HFM evaluated at a single institution. Data were acquired through history, physical examination, photographs, diagnostic radiology, and laboratory and analyzed by the FileMakerPro database on 95 patients (54F; 41M) of which 89 met the inclusion criteria...
March 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28298043/ct-guided-selective-percutaneous-radiofrequency-thermocoagulation-via-the-foramen-rotundum-for-isolated-maxillary-nerve-idiopathic-trigeminal-neuralgia
#2
Quan Wan, Daying Zhang, Xintian Cao, Yong Zhang, Mengye Zhu, Wei Zuo
OBJECTIVE Although CT-guided selective percutaneous radiofrequency thermocoagulation (PRFT) via the foramen rotundum (FR) has been used in the clinic as a novel successful treatment for isolated, second division (maxillary nerve [V2]), idiopathic trigeminal neuralgia (ITN), there is only very limited related literature published to date. This report aims to provide more detail for physicians about this technique. METHODS Between March 2013 and April 2014, 20 patients with isolated V2 ITN refractory to or intolerant of drug treatment were treated by CT-guided selective PRFT via the FR at the First Affiliated Hospital of Nanchang University...
March 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28271169/-intraoperative-monitoring-of-the-facial-nerve-vestibular-schwannoma-surgery
#3
J Prell, C Strauss, S K Plontke, S Rampp
BACKGROUND: In vestibular schwannoma surgery, facial nerve injury with consecutive functional impairment is one of the most important complications. Intraoperative monitoring of facial nerve function has been developed in order to avoid this complication. OBJECTIVE: Which methods for intraoperative monitoring have been developed? Which methods are in use today and what can they achieve in modern vestibular schwannoma surgery? MATERIAL AND METHODS: This article provides an evaluation and summary of the literature, as well as a discussion of the methods and their ability to achieve the goals of intraoperative monitoring...
March 7, 2017: HNO
https://www.readbyqxmd.com/read/28264236/influencing-factors-analysis-of-facial-nerve-function-after-the-microsurgical-resection-of-acoustic-neuroma
#4
WenMing Hong, HongWei Cheng, XiaoJie Wang, ChunGuo Feng
OBJECTIVE: To explore and analyze the influencing factors of facial nerve function retainment after microsurgery resection of acoustic neurinoma. METHODS: Retrospective analysis of our hospital 105 acoustic neuroma cases from October, 2006 to January 2012, in the group all patients were treated with suboccipital sigmoid sinus approach to acoustic neuroma microsurgery resection. We adopted researching individual patient data, outpatient review and telephone followed up and the House-Brackmann grading system to evaluate and analyze the facial nerve function...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28254601/electromyographically-guided-nerve-combing-makes-microvascular-decompression-more-successful-in-hemifacial-spasm-with-persistent-abnormal-muscle-response
#5
Xin Zhang, Jin Zhu, Yin-Da Tang, Hua Zhao, Ting-Ting Ying, Yan Yuan, Shi-Ting Li
BACKGROUND: Microvascular decompression (MVD) of the facial nerve monitored intra-operatively by abnormal muscle response (AMR) activity is a common treatment for hemifacial spasm. However, AMR frequently persists after MVD, for which electromyographically (EMG)-guided nerve combing is sometimes recommended. Because no research regarding the success of EMG-guided nerve combing has been published, we compared the effectiveness of nerve combing after MVD with simple MVD in cases including persistent AMR...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28235530/intraoperative-aberrant-bispectral-index-values-due-to-facial-nerve-monitoring
#6
Dhritiman Chakrabarti, Rohini Mrugank Surve, Deepti Bs, Dheeraj Masapu
Bispectral index is an accepted depth of anaesthesia monitor for guiding intraoperative hypnotic agent administration. Frontalis EMG displayed on BIS monitor may increase due to twitching of frontalis muscle. EMG increases are also known to cause artefactual increases in BIS values. We report a case of artefactual increase of EMG and subsequently BIS values, due to electrical artefact from cranial nerve stimulator being used to identify the facial nerve. An explanation of the effect of stimulator signal on BIS EMG and BIS values has been provided...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28235386/characteristics-of-ci-children-with-complicated-middle-ear-infections
#7
Søren Hoberg, Christian Danstrup, Bjarke Laursen, Niels Krintel Petersen, Nichlas Udholm, Gintaras Audrius Kamarauskas, Therese Ovesen
OBJECTIVE: To describe cases of complicated middle ear infections in children with cochlear implants (CI), i.e., episodes of acute otitis media (AOM) and acute mastoiditis (AM), resulting in hospitalization. METHODS: A total of 206 children under 16 years (300 implantations) were implanted between 1 January 2008 and 31 December 2014 at the West Danish CI Center, Department of Otorhinolaryngology Head and Neck Surgery, Aarhus, Denmark. By means of two prospective local databases, episodes of AOM or AM and demographics were retrieved including biochemistry, microbiology, length of follow- up, and variable treatment modalities (intravenous (IV) antibiotics, revision mastoidectomy, and insertion of ventilation tubes)...
February 24, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28223251/facial-nerve-function-and-quality-of-resection-in-large-and-giant-vestibular-schwannomas-surgery-operated-by-retrosigmoid-transmeatal-approach-in-semisetting-position-with-intraoperative-facial-nerve-monitoring
#8
Lotfi Boublata, Mohamad Belahreche, Rafik Ouchtati, Zarinah Shabay, Lila Boutiah, Mohamad Kabache, Nadji M'Hamed, Zoheir Djenna, Hocine Bounecer, Nafa Ioualalen
No abstract text is available yet for this article.
February 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28153619/the-effects-of-dual-abnormal-muscle-response-monitoring-on-microvascular-decompression-in-patients-with-hemifacial-spasm
#9
Xin Zhang, Hua Zhao, Ting-Ting Ying, Yin-Da Tang, Jin Zhu, Shi-Ting Li
BACKGROUND: Microvascular decompression (MVD) is the most useful treatment for hemifacial spasm (HFS). During MVD surgery, traditional abnormal muscle response (tAMR) is widely used to monitor success in decompressing the facial nerve. Dual AMR (dAMR) is a new monitoring method used during MVD for HFS. We compared the sensitivities and reliabilities of tAMR and dAMR. METHODS: We performed a retrospective study of 1,301 cases of HFS treated using MVD between January 2014 and March 2016...
January 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28137246/functional-outcome-and-complications-after-the-microsurgical-removal-of-giant-vestibular-schwannomas-via-the-retrosigmoid-approach-a-retrospective-review-of-16-year-experience-in-a-single-hospital
#10
Xiang Huang, Jian Xu, Ming Xu, Mingyu Chen, Kaiyuan Ji, Junwei Ren, Ping Zhong
BACKGROUND: Intracranial vestibular schwannoma still remain to be difficulty for its unique microsurgical technique and preservation of neuro-function, as well as reducing common complications that may arise in surgery. METHODS: We consecutively enrolled 657 unilateral giant (>4 cm diameter) vestibular schwannoma patients treated in Huashan Hospital via the suboccipital retrosigmoid approach in the past 16 years. The extension of tumor removal, surgical mortality, facial nerve function, hearing, and the other main short and long-term complications were the studied parameters...
January 31, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28120087/the-significance-of-abnormal-muscle-response-monitoring-during-microvascular-decompression-for-hemifacial-spasm
#11
Ming Xing Liu, Jun Zhong, Lai Xia, Ning-Ning Dou, Hui Sun, Bin Li, Massimiliano Visocchi, Shi-Ting Li
BACKGROUND: Despite the wide adoption of the abnormal muscle response (AMR) to electrical stimulation of the facial nerve during microvascular decompression (MVD) surgery, the value of AMR in the prognosis of the postoperative outcome is still controversial. In order to better use this intraoperative electrophysiology, it is necessary to further address the relationship between AMR and postoperative results. METHODS: Three hundred and thirty-two patients with hemifacial spasm (HFS) in whom MVD surgery was performed and in whom AMR was available were finally enrolled in this study...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28045852/overview-on-criteria-for-mep-monitoring
#12
David B MacDonald
Intraoperative motor evoked potentials include the D-wave as a surrogate for long-term motor outcome and muscle motor evoked potentials as a surrogate for early outcome. Their efficacy depends on excluding confounding factors and on warning criteria; insufficiently sensitive criteria could result in unpredicted deficits, whereas excessively sensitive ones could cause false alarms deterring surgical treatment and jading surgeons to alerts, eventually leading to deficits through failure to intervene. Although D-waves have few indications, they are nonsynaptic, linear, and stable-properties that support amplitude reduction criteria: >50% for intramedullary spinal cord tumor surgery and >30% to 40% for peri-Rolandic brain surgery...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28027998/an-optimized-abnormal-muscle-response-recording-method-for-intraoperative-monitoring-of-hemifacial-spasm-and-its-long-term-prognostic-value
#13
Chuyi Huang, Suhua Miao, Heling Chu, Chuanfu Dai, Jinting Wu, Junhua Wang, Huancong Zuo, Yu Ma
BACKGROUND: Intraoperative electrophysiological monitoring is used to determine whether decompression is sufficient during microvascular decompression (MVD) for hemifacial spasm (HFS). However, the real offending vessel is sometimes neglected by the neurosurgeons. Here, we reported our experience in using optimized abnormal muscle response (AMR) monitoring and continuous intraoperative monitoring for MVD. METHODS: This study included 2161 HFS patients who underwent MVD using traditional (1023 patients) and optimized (1138 patients) methods...
February 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28017747/complications-and-management-of-large-intracranial-vestibular-schwannomas-via-the-retrosigmoid-approach
#14
Xiang Huang, Ming Xu, Jian Xu, Liangfu Zhou, Ping Zhong, Mingyu Chen, Kaiyuan Ji, Huiyu Chen, Ying Mao
OBJECTIVE: To investigate the common complications from the microsurgical treatment of large intracranial vestibular schwannoma (VS) via suboccipital retrosigmoid approach and to propose strategies for minimizing such complications. METHODS: We selected all patients with large unilateral VS from the collected database (1999-2013) who underwent microsurgical resection as their initial treatment for histopathologically confirmed VS. Tumors larger than 30 × 20 mm were defined as large...
March 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28005652/facial-nerve-preservation-during-giant-mandibular-tumor-surgery
#15
Yun Zhu, Wanlin Xu, Chenping Zhang, Wenjun Yang
Marginal mandibular branch of facial nerve is easy to be ignored and injured in patients undergoing giant mandibular tumor resections. In this article, a 30-year-old patient with a giant tumor in the left mandible, an operation of segmental mandibulectomy and reconstruction was given, and the surgery was assisted by intraoperative facial nerve monitoring. During surgery, the marginal mandibular branch of the facial nerve was detected and well preserved. The patient showed no facial function injury postoperation...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28000305/parotidectomy-under-sedation-and-locoregional-anesthesia-with-monitoring-of-brain-activity
#16
Marco Antonio Scirea Tesseroli, Fabricio Battistela Zasso, Humberto Hepp, Antonio Vitor Martins Priante, André Luiz Loureiro de Mattos Filho, Alvaro Sanabria
BACKGROUND: Parotidectomy is usually performed while the patient is under general anesthesia, however, sedation with locoregional anesthesia could be an alternative. METHODS: Fifteen adult patients with parotid tumors of the superficial lobe were included in this study. Anesthetic procedure consisted of sedation associated with cervical plexus and auriculotemporal nerve block. Sedation was managed based on the bispectral index. RESULTS: Superficial parotidectomies were performed in 13 patients, and combined partial resections were performed in 2 patients...
December 21, 2016: Head & Neck
https://www.readbyqxmd.com/read/27915063/preoperative-prediction-of-location-and-shape-of-facial-nerve-in-patients-with-large-vestibular-schwannomas-using-diffusion-tensor-imaging-based-fiber-tracking
#17
Yanyang Zhang, Zhiqi Mao, Penghu Wei, Yazhou Jin, Lin Ma, Jun Zhang, Xinguang Yu
OBJECTIVE: Preserving the facial nerve (FN) during surgery for large vestibular schwannomas (VSs) is challenging because of the unpredictable locations and morphologic changes in the FN. Diffusion tensor imaging-based fiber tracking (DTI-FT) has been proposed to preoperatively visualize the FN. This study was performed to evaluate the efficacy of DTI-FT for predicting FN location and shape in patients with large VSs. METHODS: In this prospective study, imaging data from 30 consecutive patients with large VSs were obtained using 3-T magnetic resonance imaging...
March 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27893549/how-deleterious-is-facial-nerve-dissection-for-the-facial-nerve-in-parotid-surgery-an-electrophysiological-evaluation
#18
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...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27882508/regional-early-development-and-eruption-of-permanent-teeth-case-report
#19
A M Al Mullahi, A Bakathir, S Al Jahdhami
BACKGROUND: Early development and eruption of permanent teeth are rarely reported in scientific literature. Early eruption of permanent teeth has been reported to occur due to local factors such as trauma or dental abscesses in primary teeth, and in systemic conditions. Congenital diffuse infiltrating facial lipomatosis (CDIFL) is a rare condition that belongs to a group of lipomatosis tumours. In this disorder, the mature adipocytes invade adjacent soft and hard tissues in the facial region...
November 23, 2016: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/27835757/vaccine-strain-herpes-zoster-found-in-the-trigeminal-nerve-area-in-a-healthy-child-a-case-report
#20
Sayaka Iwasaki, Kouji Motokura, Yoshitaka Honda, Masamitsu Mikami, Daisuke Hata, Atsuko Hata
A previously healthy 2-year-old girl, vaccinated for varicella at 17 months, was admitted because of left-sided facial herpes zoster caused by vaccine-strain varicella-zoster virus (VZV). She recovered fully with no complication after intravenous treatment using acyclovir. Earlier reports have described that herpes zoster (HZ) rashes caused by vaccine-strain VZV tend to occur on the dermis corresponding to the skin area where the varicella vaccine was received. However, rashes appeared on this girl only in the trigeminal nerve area, which is unrelated to the vaccinated site...
November 3, 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
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