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https://www.readbyqxmd.com/read/28534074/facial-nerve-sparing-surgery-for-large-vestibular-schwannomas
#1
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...
May 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28523516/pre-operative-screening-and-manual-drilling-strategies-to-reduce-the-risk-of-thermal-injury-during-minimally-invasive-cochlear-implantation-surgery
#2
Neal P Dillon, Loris Fichera, Kyle Kesler, M Geraldine Zuniga, Jason E Mitchell, Robert J Webster, Robert F Labadie
This article presents the development and experimental validation of a methodology to reduce the risk of thermal injury to the facial nerve during minimally invasive cochlear implantation surgery. The first step in this methodology is a pre-operative screening process, in which medical imaging is used to identify those patients that present a significant risk of developing high temperatures at the facial nerve during the drilling phase of the procedure. Such a risk is calculated based on the density of the bone along the drilling path and the thermal conductance between the drilling path and the nerve, and provides a criterion to exclude high-risk patients from receiving the minimally invasive procedure...
May 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28502566/lateral-skull-base-chondroblastoma-resected-with-facial-nerve-posterior-transposition
#3
J Adnot, O Langlois, E Tollard, M Crahes, I Auquit-Auckbur, J-P Marie
INTRODUCTION: Chondroblastoma is a rare tumor that can involve the temporal bone. Because it is a benign tumor, functional surgery must be proposed. We report a case of a patient with a massive chondroblastoma operated on with preservation of the facial nerve, and description of the surgical technique. CASE PRESENTATION: A 37-year-old man presented with a 9-month history of a growing left pre-auricular mass and hearing loss. Neuroimaging showed an osteolytic mass invading the temporal bone and temporomandibular joint...
May 11, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28489810/a-case-report-of-hereditary-neuropathy-with-liability-to-pressure-palsies-accompanied-by-type-2-diabetes-mellitus-and-psoriasis
#4
Jing Li, Bing Niu, Xiaoling Wang, Huaiqiang Hu, Bingzhen Cao
RATIONALE: Hereditary neuropathy with liability to pressure palsy (HNPP) is an episodic, multifocal neuropathy, with a typical clinical presentation of recurrent transient pressure palsies, which is induced by a PMP22 deletion. Another neuropathy caused by a PMP22 duplication is Charcot-Marie-Tooth disease type 1A (CMT1A). PMP22 is a gene coding a protein called peripheral myelin protein 22 (PMP22), which plays an essential role in the formation and maintenance of compact myelin. Coexistence of type 2 diabetes mellitus (T2DM) and CMT1A has been reported in many work, however HNPP patients with T2DM are rare, and comorbidity of HNPP and psoriasis has not been reported previously...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28472393/fluoroscopic-c-arm-and-ct-guided-selective-radiofrequency-ablation-for-trigeminal-and-glossopharyngeal-facial-pain-syndromes
#5
Nicholas A Telischak, Jeremy J Heit, Lucas W Campos, Omar A Choudhri, Huy M Do, Xiang Qian
Objectives.:  Percutaneous radiofrequency ablation (RFA) of the gasserian ganglion through the foramen ovale and the glossopharyngeal nerve at the jugular foramen is a classical approach to treating trigeminal neuralgia (TN) and glossopharyngeal neuralgia (GPN), respectively. However, it can be technically challenging with serious complications. We have thus developed a novel technique utilizing C-arm and computerized tomography (CT) guidance to block TN and GPN. Our goals were to describe a three-dimensional image-based technique to improve patient comfort and to decrease procedural time associated with needle guidance...
May 2, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28439158/trigemino-cardiac-reflex-a-phenomenon-neglected-in-maxillofacial-surgery
#6
Udupikrishna M Joshi, Ashwini Munnangi, Kundan Shah, Satishkumar G Patil, Nitin Thakur
BACKGROUND: Trigemino-cardiac reflex is a physiologic response of the body to pressure effects in the region of distribution of the trigeminal nerve. Oral and maxillofacial surgical procedures can induce the development of this reflex, which leads to significant changes in the heart rate and sinus rhythms. This study intends to evaluate the effects of this reflex in patients with facial fractures and its subsequent management. PATIENTS AND METHODS: A total of thirty-seven patients with facial fractures who reported to the Department of Oral and Maxillofacial Surgery at Basaveswar Teaching and General Hospital, Gulbarga during a period from July 2015-March 2016 were considered for the study...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28415058/-a-case-of-arteriovenous-malformation-of-the-parotid-gland-associated-with-cowden-disease
#7
Kazuhiko Nishi, Satoshi Murai, Hisakazu Itami, Shinji Otsuka, Noboru Kusaka, Tsukasa Nishiura, Nobuhiko Kimura, Kotaro Ogihara
We report a rare case of arteriovenous malformation(AVM)of the parotid gland associated with Cowden disease successfully treated with preoperative embolization followed by surgical removal. A 39-year-old man with a history of Cowden disease presented with a pulsating and growing mass on his left lower jaw. Contrast-enhanced computed tomography(CT)and angiography revealed a high-flow AVM in the deep lobe of the left parotid gland. After intravascular embolization of the feeding arteries, surgery was performed using the NIM-response<sup>®</sup>3...
April 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28319315/maxillofacial-features-and-systemic-malformations-in-expanded-spectrum-hemifacial-microsomia
#8
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...
May 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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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 1301 cases of HFS treated using MVD between January 2014 and March 2016...
May 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
#17
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
#18
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
#19
REVIEW
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
#20
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
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