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Neurophysiology monitoring

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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/29761018/behavioral-and-neurophysiological-abnormalities-during-cued-continuous-performance-tasks-in-patients-with-mild-traumatic-brain-injury
#2
Weixiang Zhao, Ruhong Wu, Suhong Wang, Haihui Qi, Yitao Qian, Suinuan Wang
Objective: This study's aim was to investigate the features and neural mechanisms of sustained attention in patients with mild traumatic brain injury (mTBI) by comparing and analyzing neuropsychological, behavioral, event-related potentials, and event-related desynchronization and synchronization between mTBI patients and healthy controls. Methods: Twenty mTBI patients with mTBI and 20 healthy controls underwent the Mini-Mental State Examination (MMSE) and a cued continuous performance task (AX-CPT)...
May 2018: Brain and Behavior
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/29742889/intraoperative-neurophysiological-monitoring-a-review-of-techniques-used-for-brain-tumor-surgery-in-children
#4
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/29740029/random-feedback-makes-listeners-tone-deaf
#5
Dominique T Vuvan, Benjamin Rich Zendel, Isabelle Peretz
The mental representation of pitch structure (tonal knowledge) is a core component of musical experience and is learned implicitly through exposure to music. One theory of congenital amusia (tone deafness) posits that conscious access to tonal knowledge is disrupted, leading to a severe deficit of music cognition. We tested this idea by providing random performance feedback to neurotypical listeners while they listened to melodies for tonal incongruities and had their electrical brain activity monitored. The introduction of random feedback was associated with a reduction of accuracy and confidence, and a suppression of the late positive brain response usually elicited by conscious detection of a tonal violation...
May 8, 2018: Scientific Reports
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/29718827/definition-and-classification-of-periodic-and-rhythmic-patterns
#9
Carolina B Maciel, Lawrence J Hirsch
The growing use of continuous video-EEG recording in the inpatient setting, in particular in patients with varying degrees of encephalopathy, has yielded a window to the brain with an excellent temporal resolution. This increasingly available tool has become more than an instrument to detect nonconvulsive seizures (its primary use), and clinical indications span from ischemia detection in acute brain injuries, neuroprognostication of comatose patients, to monitoring the degree of encephalopathy. In this context, abnormal findings such as periodic discharges and rhythmic delta activity were increasingly recognized; however, significant subjectivity remained in the interpretation of these findings pertaining to key features regarding their spatial involvement, prevalence of occurrence, duration, associated morphologic features, and behavior...
May 2018: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
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/29693215/how-socioemotional-setting-modulates-late-stage-conflict-resolution-processes-in-the-lateral-prefrontal-cortex
#12
Marie Luise Schreiter, Witold X Chmielewski, Christian Beste
The goal-directed control of behaviour critically depends on emotional regulation and constitutes the basis of mental well-being and social interactions. Within a socioemotional setting, it is necessary to prioritize effectively the relevant emotional information over interfering irrelevant emotional information to orchestrate cognitive resources and achieve appropriate behavior. Currently, it is elusive whether and how different socioemotional stimulus dimensions modulate cognitive control and conflict resolution...
April 24, 2018: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/29689005/perioperative-complications-after-surgery-for-thoracic-ossification-of-posterior-longitudinal-ligament-nationwide-multicenter-prospective-study
#13
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
#14
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
#15
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
#16
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
#17
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/29666567/the-neural-correlates-of-grasping-in-left-handers-when-handedness-does-not-matter
#18
Chiara Begliomini, Luisa Sartori, Maria G Di Bono, Sanja Budisavljević, Umberto Castiello
Neurophysiological studies showed that in macaques, grasp-related visuomotor transformations are supported by a circuit involving the anterior part of the intraparietal sulcus, the ventral and the dorsal region of the premotor area. In humans, a similar grasp-related circuit has been revealed by means of neuroimaging techniques. However, the majority of "human" studies considered movements performed by right-handers only, leaving open the question of whether the dynamics underlying motor control during grasping is simply reversed in left-handers with respect to right-handers or not...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29662434/review-of-the-neural-oscillations-underlying-meditation
#19
REVIEW
Darrin J Lee, Edwin Kulubya, Philippe Goldin, Amir Goodarzi, Fady Girgis
Objective: Meditation is one type of mental training that has been shown to produce many cognitive benefits. Meditation practice is associated with improvement in concentration and reduction of stress, depression, and anxiety symptoms. Furthermore, different forms of meditation training are now being used as interventions for a variety of psychological and somatic illnesses. These benefits are thought to occur as a result of neurophysiologic changes. The most commonly studied specific meditation practices are focused attention (FA), open-monitoring (OM), as well as transcendental meditation (TM), and loving-kindness (LK) meditation...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29658939/simultaneous-recordings-of-cortical-local-field-potentials-electrocardiogram-electromyogram-and-breathing-rhythm-from-a-freely-moving-rat
#20
Yu Shikano, Takuya Sasaki, Yuji Ikegaya
Monitoring the physiological dynamics of the brain and peripheral tissues is necessary for addressing a number of questions about how the brain controls body functions and internal organ rhythms when animals are exposed to emotional challenges and changes in their living environments. In general experiments, signals from different organs, such as the brain and the heart, are recorded by independent recording systems that require multiple recording devices and different procedures for processing the data files...
April 2, 2018: Journal of Visualized Experiments: JoVE
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