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intraoperative neurophysiology

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https://www.readbyqxmd.com/read/29772366/giant-cell-ependymoma-of-cervical-medullary-junction-a-case-report-of-a-long-term-survivor-and-review-of-literature
#1
REVIEW
Martina Cappelletti, Andrea G Ruggeri, Giorgia Iacopino, Roberto Delfini
Ependymoma accounts for 3-9% of all neuroepithelial tumors. The giant cell ependymoma is a rare and distinct variant, of which only twenty-two cases have been described in literature. Starting from 2007, the WHO acknowledged this rare subtype. The cytological features of GCE are the presence of pleomorphic giant cells with several cellular atypias, which at intra-operative frozen diagnosis may appear to be high-grade glial lesions. Despite its apparently malignant histology, GCE seems to be a neoplasm with a relatively good prognosis...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29764274/delayed-transmastoid-facial-nerve-decompression-surgery-in-patients-with-ramsay-hunt-syndrome-presenting-with-neurophysiologically-complete-paralysis
#2
Yoshihiko Kumai, Momoko Ise, Satoru Miyamaru, Yorihisa Orita
OBJECTIVES: To determine the efficacy of delayed transmastoid facial nerve decompression in patients with Ramsay Hunt Syndrome (RHS) presenting with complete facial paralysis. METHODS: Twenty-five RHS patients with complete facial nerve paralysis presenting electroneuronographic (ENoG) degeneration ≥90% underwent transmastoid facial nerve decompression more than 3 weeks after the onset of paralysis. The principal features measured were 12 months pre- and post-operative House-Brackmann (HB) grades and the presence of a direct intraoperative neural response (INR) prior to decompression procedure...
May 15, 2018: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29753078/isolated-pediatric-intramedullary-schwannoma-case-report-and-review-of-the-literature
#3
Alessandro Landi, Giovanni Grasso, Fabrizio Gregori, Giorgia Iacopino, Andrea Ruggeri, Roberto Delfini
BACKGROUND: Intramedullary (IM) schwannomas are rare entities representing the 0.3-1% of intramedullary tumors and 1.1% of spinal schwannomas. Beside many theories proposed, their rare occurrence might be related to the absence of Schwann cells into the spinal cord. Pediatric IM schwannomas are uncommon and in absence of neurofibromatosis (NF) they are extremely rare. To date, very few cases have been reported in the literature. CASE DESCRIPTION: We describe the case of a 8 year-old female affected by a progressive paraparesis...
May 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29746889/modular-auditory-decision-making-behavioral-task-designed-for-intraoperative-use-in-humans
#4
Anand Tekriwal, Gidon Felsen, John A Thompson
BACKGROUND: Neurosurgical interventions that require active patient feedback, such as deep brain stimulation surgery, create an opportunity to conduct cognitive or behavioral experiments during the acquisition of invasive neurophysiology. Optimal design and implementation of intraoperative behavioral experiments require consideration of stimulus presentation, time and surgical constraints. We describe the use of a modular, inexpensive system that implements a decision-making paradigm, designed to overcome challenges associated with the operative environment...
May 7, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29742889/intraoperative-neurophysiological-monitoring-a-review-of-techniques-used-for-brain-tumor-surgery-in-children
#5
REVIEW
Keewon Kim, Charles Cho, Moon-Suk Bang, Hyung-Ik Shin, Ji-Hoon Phi, Seung-Ki Kim
Intraoperative monitoring (IOM) utilizes electrophysiological techniques as a surrogate test and evaluation of nervous function while a patient is under general anesthesia. They are increasingly used for procedures, both surgical and endovascular, to avoid injury during an operation, examine neurological tissue to guide the surgery, or to test electrophysiological function to allow for more complete resection or corrections. The application of IOM during pediatric brain tumor resections encompasses a unique set of technical issues...
May 2018: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/29738385/safe-intraoperative-neurophysiologic-monitoring-during-posterior-spinal-fusion-in-a-patient-with-cochlear-implants
#6
Godwin Abiola, Bryan Kevin Ward, Stephen Bowditch, Eva Katharina Ritzl, John Patrick Carey
OBJECTIVE: Cochlear implants are generally considered a contraindication for any procedure requiring electrical stimulation near the implant. We present a case of a patient undergoing intraoperative transcranial electrical motor-evoked potential monitoring with a cochlear implant without adverse outcomes. PATIENT: A 12-year-old girl with a history of VACTERL presented with worsening congenital kyphosis and bilateral severe-to-profound hearing loss. Since age 7 the patient used a cochlear implant in the right ear and hearing aid in the left ear...
June 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29733992/neuronavigation-guided-corticospinal-tract-mapping-in-brainstem-tumor-surgery-better-preservation-of-motor-function
#7
Zhibao Li, Mingran Wang, Liwei Zhang, Xing Fan, Xiaorong Tao, Lei Qi, Miao Ling, Xiong Xiao, Yuliang Wu, Dongze Guo, Hui Qiao
BACKGROUND: A new method in brainstem surgery, neuronavigation (NN)-guided corticospinal tract (CST) mapping, was used in a retrospective study of patients undergoing brainstem tumor surgery. METHODS: We studied 40 patients with a brainstem tumor who were enrolled in this study. Patients whose worst preoperative muscle strength of the four limbs was greater than three levels from normal on the Lovett scale were divided into two groups: a treatment group of 21 patients that included NN-guided CST mapping and routine intraoperative neurophysiology monitoring (IONM), and a control group of 19 patients that included routine NN and routine IONM...
May 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29733410/perioperative-multimodal-evaluation-and-surgical-tactics-of-tumor-related-epilepsy-2-dimensional-operative-video
#8
Chengxin Ma, Rui Feng, N U Farrukh Hameed, Jie Zhang, Dongxiao Zhuang, Jinsong Wu
Treatment of tumor-related epilepsy (TRE), especially for tumors near critical areas, requires surgeons to strike a balance between the epileptic benefit and functional outcome after surgery. Here, we present a case in which multimodal evaluation facilitated the achievement of such surgical balance. Informed patient consent was obtained. A 17-yr-old female presented with seizure attacks for 2 yr. Magnetic resonance imaging (MRI) revealed a right parietal mass lesion with hypointense signal on T1W imaging, hyperintense signal on T2W imaging, and homogeneous enhancement...
May 4, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29732427/do-intra-operative-neurophysiological-changes-predict-functional-outcome-following-decompressive-surgery-for-lumbar-spinal-stenosis-a-prospective-study
#9
Krzysztof Piasecki, Gerit Kulik, Katarzyna Pierzchala, Etienne Pralong, Prashanth J Rao, Constantin Schizas
Background: To analyse the relation between immediate intraoperative neurophysiological changes during decompression and clinical outcome in a series of patients with lumbar spinal stenosis (LSS) undergoing surgery. Methods: Twenty-four patients with neurogenic intermittent claudication (NIC) due to LSS undergoing decompressive surgery were prospectively studied. Intra operative trans-cranial motor evoked potentials (tcMEPs) were recorded before and immediately after surgical decompression...
March 2018: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29709735/safeness-and-utility-of-concomitant-intraoperative-monitoring-with-intraoperative-magnetic-resonance-imaging-in-children-a-pilot-study
#10
Sandra Dias, Johannes Sarnthein, Elisabeth Jehli, Marian Christoph Neidert, Luca Regli, Oliver Bozinov
OBJECTIVE: High-field intraoperative MR (ioMRI) has become increasingly available in neurosurgery centers. There is little experience with the combination of ioMRI with intraoperative neurophysiological neuromonitoring (IONM). We provide a first series of pediatric patients undergoing brain tumor surgery with 3T ioMRI and IONM. METHODS: We conducted a pilot study were we included all consecutive children operated for brain tumors between October 2013 and April 2016 where concomitant ioMRI and somatosensory evoked potentials (SEP) and motor evoked potentials (MEP) were used...
April 27, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29696619/-intraoperative-neurophysiological-monitoring-in-spain-its-beginnings-current-situation-and-future-prospects
#11
V E Cortes-Donate, P J Perez-Lorensu, A Garcia-Garcia, Asociacion de Monitorizacion Intraquirurgica Neurofisiologica Espanola Amine Asociacion de Monitorizacion Intraquirurgica Neurofisiologica Espanola Amine, Sociedad Espanola de Neurofisiologia Clinica Senfc Sociedad Espanola de Neurofisiologia Clinica Senfc, Grupo de Trabajo de Monitorizacion Neurofisiologica Intraoperatoria de la Senfc Grupo de Trabajo de Monitorizacion Neurofisiologica Intraoperatoria de la Senfc
Intraoperative neurophysiological monitoring (IONM) is nowadays another tool within the operating room that seeks to avoid neurological sequels derived from the surgical act. The Spanish Neurophysiological Intra-Surgical Monitoring Association (AMINE) in collaboration with the Spanish Society of Clinical Neurophysiology (SENFC), and the IONM Working Group of the SENFC has been collecting data in order to know the current situation of the IONM in Spain by hospitals, autonomous communities including the autonomous cities of Ceuta and Melilla, the opinions of the specialists in clinical neurophysiology involved in this topic and further forecasts regarding IONM...
May 1, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29689005/perioperative-complications-after-surgery-for-thoracic-ossification-of-posterior-longitudinal-ligament-nationwide-multicenter-prospective-study
#12
Shiro Imagama, Kei Ando, Kazuhiro Takeuchi, Satoshi Kato, Hideki Murakami, Toshimi Aizawa, Hiroshi Ozawa, Tomohiko Hasegawa, Yukihiro Matsuyama, Masao Koda, Masashi Yamazaki, Hirotaka Chikuda, Shigeo Shindo, Yukihiro Nakagawa, Atsushi Kimura, Katsushi Takeshita, Kanichiro Wada, Hiroyuki Katoh, Masahiko Watanabe, Kei Yamada, Takeo Furuya, Takashi Tsuji, Shunsuke Fujibayashi, Kanji Mori, Yoshiharu Kawaguchi, Kota Watanabe, Morio Matsumoto, Toshitaka Yoshii, Atsushi Okawa
STUDY DESIGN: Prospective, multicenter, nationwide study OBJECTIVE.: To investigate perioperative complications and risk factors in surgery for thoracic ossification of the posterior longitudinal ligament (T-OPLL) using data from the registry of the Japanese Multicenter Research Organization for Ossification of the Spinal Ligament. SUMMARY OF BACKGROUND DATA: There is no prospective multicenter study of surgical complications and risk factors for T-OPLL, and previous multicenter retrospective studies have lacked details...
April 23, 2018: Spine
https://www.readbyqxmd.com/read/29689002/response-letter-intraoperative-neurophysiological-monitoring-in-spine-surgery-a-systematic-review-and-metaanalysis
#13
Jefferson W Daniel, Ricardo Vieira Botelho, Jerônimo Milano Buzetti, Fernando Rolemberg Dantas, Franz Onishi, Eloy Russafa Neto, Eduardo de Freitas Bertolini, Marcelo Duva Borgheresi, Andrei Fernandes Joaquim
No abstract text is available yet for this article.
April 23, 2018: Spine
https://www.readbyqxmd.com/read/29689001/letter-to-editor-regarding-intraoperative-neurophysiological-monitoring-in-spine-surgery-a-systematic-review-and-meta-analysis-doi-10-1097-brs-0000000000002575
#14
Andres A Gonzalez, Justin Cheongsiatmoy, Parastou Shilian, Pooja Parikh
No abstract text is available yet for this article.
April 23, 2018: Spine
https://www.readbyqxmd.com/read/29669030/the-efficacy-of-intraoperative-neurophysiological-monitoring-to-detect-postoperative-neurological-deficits-in-transforaminal-lumbar-interbody-fusion-surgery
#15
Joung Heon Kim, Svetlana Lenina, Grace Mosley, Joshua Meaike, Benjamin Tran, Jun S Kim, Samuel K Cho
BACKGROUND: Despite the extensive use of intraoperative neurophysiological monitoring (IONM) in spinal procedures, there is no standard guideline for what types of IONM tests should be monitored during lumbar procedures with instrumentation. Moreover, the efficacy of IONM during transforaminal lumbar interbody fusion (TLIF) surgery in detecting postoperative neurological deficits has not been well described. OBJECTIVE: To analyze waveform changes from individual IONM tests (somatosensory evoked potentials [SSEP], motor evoked potentials [MEP], and electromyography [EMG]) during TLIF and compare the sensitivity and specificity of these tests in order to determine the best combination to detect postoperative neurological deficits...
April 13, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29667095/can-postoperative-deltoid-weakness-after-cervical-laminoplasty-be-prevented-by-using-intraoperative-neurophysiological-monitoring
#16
Muneharu Ando, Tetsuya Tamaki, Takuji Matsumoto, Kazuhiro Maio, Masatoshi Teraguchi, Noboru Takiguchi, Hiroki Iwahashi, Makiko Onishi, Yukihiro Nakagawa, Hiroshi Iwasaki, Shunji Tsutsui, Masanari Takami, Hiroshi Yamada
Laminoplasty, frequently performed in patients with cervical myelopathy, is safe and provides relatively good results. However, motor palsy of the upper extremities, which occurs after decompression surgery for cervical myelopathy, often reduces muscle strength of the deltoid muscle, mainly in the C5 myotome. The aim of this study was to investigate prospectively whether postoperative deltoid weakness (DW) can be predicted by performing intraoperative neurophysiological monitoring (IONM) during cervical laminoplasty and to clarify whether it is possible to prevent palsy using IONM...
April 17, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29643629/intraoperative-neurophysiological-monitoring-team-s-communiqu%C3%A3-with-anesthesia-professionals
#17
Anurag Tewari, Lisa Francis, Ravi N Samy, Dean C Kurth, Joshua Castle, Tiffany Frye, Mohamed Mahmoud
Background and Aims: Intraoperative neurophysiological monitoring (IONM) is the standard of care during many spinal, vascular, and intracranial surgeries. High-quality perioperative care requires the communication and cooperation of several multidisciplinary teams. One of these multidisciplinary services is intraoperative neuromonitoring (IONM), while other teams represent anesthesia and surgery. Few studies have investigated the IONM team's objective communication with anesthesia providers...
January 2018: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/29605668/a-low-cost-solution-for-quantification-of-movement-during-dbs-surgery
#18
Erin L Schaeffer, Daniel Y Liu, Julie Guerin, Minkyu Ahn, Shane Lee, Wael F Asaad
BACKGROUND: During the deep brain stimulation (DBS) electrode implantation operation with microelectrode recordings (MER) in awake patients, somatotopic testing and test stimulation are performed to improve electrode placement and provide the most beneficial symptom reduction possible, while minimizing side effects. As this procedure is commonly used to alleviate abnormal movements associated with Parkinson's disease (PD) and Essential Tremor (ET), intraoperative assessment of a patient's movements is critical to optimizing surgical benefit...
March 29, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29526251/robot-assisted-pudendal-neurolysis-in-the-treatment-of-pudendal-nerve-entrapment-syndrome
#19
P Moscatiello, D Carracedo Calvo, L Yupanqui Guerra, M E Rivera Martínez, A Mendiola de la Hoza, M Sánchez Encinas
INTRODUCTION: Pudendal nerve entrapment syndrome (PNE) is characterised by the presence of neuropathic pain in the pudendal nerve (PN) territory, associated or not with urinary, defecatory and sexual disorders. Surgical PN decompression is an effective and safe alternative for cases when conservative treatment fails. The aim of this study is to describe the first robot-assisted pudendal neurolysis procedure performed in our country. MATERIAL AND METHODS: We describe step by step the technique of robot-assisted laparoscopic neurolysis of the left PN performed with intraoperative neurophysiological monitoring on a 60-year-old patient diagnosed with left PNE...
March 8, 2018: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29526069/clinical-and-radiological-outcomes-of-posterior-vertebral-column-resection-for-severe-spinal-deformities
#20
Byoung Hun Lee, Seung-Jae Hyun, Ki-Jeong Kim, Tae-Ahn Jahng, Yongjung J Kim, Hyun-Jib Kim
OBJECTIVE: The aim of this study was to investigate clinical and radiological outcomes of patients who underwent posterior vertebral column resection (PVCR) by a single neurosurgeon in a single institution. METHODS: Thirty-four consecutive patients with severe spinal deformities who underwent PVCR between 2010 and 2016 were enrolled. The radiographic measurements included a kyphotic angle of PVCR levels (VCR angle), sagittal vertical axis (SVA), thoracic kyphosis, lumbar lordosis (LL), and spinopelvic parameters...
March 2018: Journal of Korean Neurosurgical Society
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