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Neurophysiology monitoring

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https://www.readbyqxmd.com/read/28641848/the-use-of-embolic-protection-devices-is-associated-with-a-lower-stroke-and-death-rate-after-carotid-stenting
#1
Christoph Knappich, Andreas Kuehnl, Pavlos Tsantilas, Sofie Schmid, Thorben Breitkreuz, Michael Kallmayer, Alexander Zimmermann, Hans-Henning Eckstein
OBJECTIVES: The aim of this study was to analyze the association between intraprocedural and periprocedural variables and in-hospital stroke or death rate after carotid artery stenting. BACKGROUND: In Germany, all open surgical and endovascular procedures on the extracranial carotid artery must be documented in a statutory nationwide quality assurance database. METHODS: A total of 13,086 carotid artery stenting procedures for asymptomatic (63...
June 26, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28641453/accuracy-of-limited-montage-electroencephalography-in-monitoring-postanoxic-comatose-patients
#2
Sandipan Pati, Lauren McClain, Lidia Moura, Yuan Fan, M Brandon Westover
BACKGROUND: Continuous EEG (cEEG) monitoring may help to identify the small percentage of adults with hypoxic-ischemic encephalopathy (HIE) who will regain consciousness if allowed sufficient time. However, the limited yield in this population has led some to question the cost-effectiveness cEEG monitoring in this population. We hypothesized that limited-montage cEEG could provide essentially the same neurophysiologic information at lower cost. In this proof of concept study, we aim to demonstrate the potentials of limited channel EEG in prognostication in postanoxic patients...
June 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28621503/ph-responsive-fluorescence-enhancement-in-graphene-oxide-naphthalimide-nanoconjugates-a-fluorescence-turn-on-sensor-for-acetylcholine
#3
Sreejith Mangalath, Silja Abraham, Joshy Joseph
A pH sensitive, fluorescence 'turn on' sensor based on a graphene oxide-naphthalimide nanoconjugate (GO-NI) for the detection of acetylcholine (ACh) by monitoring the enzymatic activity of acetylcholinesterase (AChE) in aqueous solution is reported. These nanoconjugates were synthesized by covalently anchoring picolyl substituted naphthalimide derivatives on GO/rGO surface via EDC-NHS coupling strategy and the morphological and photophysical properties were studied in detail. Synergistic effects of - interactions between GO and naphthalimide chromophore, and efficient photoinduced electron and energy transfer processes are responsible for the strong quenching of fluorescence of these nanoconjugates, which gets perturbed at acidic pH conditions leading to significant enhancement of fluorescence emission...
June 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28620788/comparison-of-intraoperative-neurophysiologic-monitoring-outcomes-between-cervical-and-thoracic-spine-surgery
#4
Shujie Wang, Yuan Tian, Xiangquan Lin, Zhifu Ren, Yu Zhao, Jiliang Zhai, Xiaojuan Zhang, Yanwei Zhao, Yingyue Dong, Congran Zhao, Ye Tian
PURPOSE: The objective is to compare the intraoperative monitoring (IOM) outcomes between degenerative cervical and thoracic spine decompression surgery. METHOD: A total of 97 patients with cervical compression myelopathy (CCM) and 75 patients with thoracic compression myelopathy (TCM) were prospectively collected between December 2012 and June 2015 in our spine center. Somatosensory-evoked potentials (SSEP) and motor-evoked potentials (MEP) were used for IOM. The postoperative neurologic status of each patient was assessed immediately after surgery...
June 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28599909/anterior-transthoracic-surgery-with-motor-evoked-potential-monitoring-for-high-risk-thoracic-disc-herniations-technique-and-results
#5
Erwin Cornips, Jeroen Habets, Vivianne van Kranen-Mastenbroek, Herman Bos, Paul Bergs, Alida Postma
OBJECTIVE: We present our experience with anterior transthoracic surgery for high-risk thoracic disc herniations (TDHs) using motor evoked potential monitoring (MEPm). METHODS: We estimated surgical risk based on clinical and radiological characteristics, including antero-posterior (AP) spinal canal occupation (SCO), AP spinal cord compression (SCC), residual AP spinal cord diameter (RSCD), and intramedullary signal changes (ISC). We analyzed Anand, ASIA, and Nurick scores, anesthesiological, neurophysiological, and surgical reports...
June 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28586707/consensus-based-guidelines-for-video-eeg-monitoring-in-the-pre-surgical-evaluation-of-children-with-epilepsy-in-the-uk
#6
Ronit M Pressler, Stefano Seri, Nick Kane, Tim Martland, Sushma Goyal, Anand Iyer, Elliott Warren, Lesley Notghi, Peter Bill, Rachel Thornton, Richard Appleton, Sarah Doyle, Sarah Rushton, Alan Worley, Stewart G Boyd
PURPOSE: Paediatric Epilepsy surgery in the UK has recently been centralised in order to improve expertise and quality of service available to children. Video EEG monitoring or telemetry is a highly specialised and a crucial component of the pre-surgical evaluation. Although many Epilepsy Monitoring Units work to certain standards, there is no national or international guideline for paediatric video telemetry. METHODS: Due to lack of evidence we used a modified Delphi process utilizing the clinical and academic expertise of the clinical neurophysiology sub-specialty group of Children's Epilepsy Surgical Service (CESS) centres in England and Wales...
May 12, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28571911/a-spotlight-on-intraoperative-neurophysiological-monitoring-of-the-lower-brainstem
#7
EDITORIAL
Francesco Sala
No abstract text is available yet for this article.
July 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28558955/seizures-in-preterm-neonates-a-multicenter-observational-cohort-study
#8
Hannah C Glass, Renée A Shellhaas, Tammy N Tsuchida, Taeun Chang, Courtney J Wusthoff, Catherine J Chu, M Roberta Cilio, Sonia L Bonifacio, Shavonne L Massey, Nicholas S Abend, Janet S Soul
BACKGROUND: The purpose of this study was to characterize seizures among preterm neonates enrolled in the Neonatal Seizure Registry, a prospective cohort of consecutive neonates with seizures at seven pediatric centers that follow the American Clinical Neurophysiology Society's neonatal electroencephalography monitoring guideline. STUDY DESIGN: Of 611 enrolled neonates with seizures, 92 (15%) were born preterm. Seizure characteristics were evaluated by gestational age at birth for extremely preterm (<28 weeks, N = 18), very preterm (28 to <32 weeks, N = 18), and moderate to late preterm (32 to <37 weeks, N = 56) and compared with term neonates...
July 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28544780/spinal-metastatic-disease-a-review-of-the-role-of-the-multidisciplinary-team
#9
REVIEW
Mark Curtin, Robert P Piggott, Evelyn P Murphy, Sudarshan Munigangaiah, Joseph F Baker, John P McCabe, Aiden Devitt
Historically, a simple approach centered on palliation was applicable to the majority of patients with metastatic spinal disease. With advances in diagnosis and treatment, a more complicated algorithm has devolved requiring a multidisciplinary approach with institutional commitment and support. We performed a database review including pertinent articles exploring the multidisciplinary management of spinal metastatic disease. The wide variation in clinical presentation and tumor response to treatment necessitates a multidisciplinary approach that integrates the diagnosis and treatment of the cancer, symptom management, and rehabilitation for optimal care of patients with spinal metastases...
May 24, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28534074/facial-nerve-sparing-surgery-for-large-vestibular-schwannomas
#10
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...
July 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28532908/the-safety-and-efficiency-of-pvcr-without-anterior-support-applied-in-treatment-of-yang-s-a-type-severe-thoracic-kyphoscoliosis
#11
Wen-Yuan Sui, Zi-Fang Huang, Yao-Long Deng, Heng-Wei Fan, Jing-Fan Yang, Fo-Bao Li, Jun-Lin Yang
OBJECT: To assess the clinical and radiographic outcomes of posterior vertebral column resection (PVCR) without anterior support in treatment of Yang's A type severe rigid thoracic kyphoscoliosis. METHODS: The records of 27 Yang's A type severe thoracic kyphoscoliosis patients treated with PVCR without anterior support from January 2010 to September 2013 were retrospectively analyzed. Intraoperative multimodal neurophysiological monitoring (IONM) (6 modes: Somatosensory evoked potential (SSEP), Motor evoked potential (MEP), Descending neurogenic evoked potential (DNEP), Spinal cord evoked potential (SCEP), and Electromyography, both triggered and free run EMG) was conducted in all patients...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28526648/somatosensory-evoked-potentials-during-temporary-arterial-occlusion-for-intracranial-aneurysm-surgery-predictive-value-for-perioperative-stroke
#12
Ahmed I Kashkoush, Brian T Jankowitz, Paul Gardner, Robert M Friedlander, Yue-Fang Chang, Donald J Crammond, Jeffrey R Balzer, Parthasarathy D Thirumala
BACKGROUND: Temporary arterial occlusion (TAO) is a valuable tool for minimizing intraoperative rupture risk during intracranial aneurysm microsurgery; however, it may also be associated with ischemic injury. OBJECTIVE: This study aims to identify surgical and intraoperative neurophysiological monitoring (IONM) factors that predict perioperative stroke risk after TAO. METHODS: We performed a retrospective chart review of 177 intracranial aneurysm surgeries at our institution, in which TAO was performed before the placement of a permanent clip under monitoring with somatosensory evoked potentials (SSEPs) and electroencephalography (EEG)...
May 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28524753/continuous-mapping-of-the-corticospinal-tracts-in-intramedullary-spinal-cord-tumor-surgery-using-an-electrified-ultrasonic-aspirator
#13
Ori Barzilai, Zvi Lidar, Shlomi Constantini, Khalil Salame, Yifat Bitan-Talmor, Akiva Korn
Intramedullary spinal cord tumors (IMSCTs) represent a rare entity, accounting for 4%-10% of all central nervous system tumors. Microsurgical resection of IMSCTs is currently considered the primary treatment modality. Intraoperative neurophysiological monitoring (IONM) has been shown to aid in maximizing tumor resection and minimizing neurological morbidity, consequently improving patient outcome. The gold standard for IONM to date is multimodality monitoring, consisting of both somatosensory evoked potentials, as well as muscle-based transcranial electric motor evoked potentials (tcMEPs)...
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28511129/neurophysiological-and-clinical-outcomes-in-chemotherapy-induced-neuropathy-in-cancer
#14
REVIEW
Tejaswi Kandula, Michelle A Farrar, Matthew C Kiernan, Arun V Krishnan, David Goldstein, Lisa Horvath, Peter Grimison, Frances Boyle, Sally Baron-Hay, Susanna B Park
Chemotherapy induced peripheral neuropathy (CIPN) is a significant toxicity of cancer treatment, with the potential to affect long-term function and quality of life in cancer survivors. There remains a lack of consensus around optimal assessment techniques. While current approaches to CIPN assessment are focused on clinical grading scales, it is becoming increasingly evident that a more comprehensive multimodal assessment package is necessary to accurately characterise the impact of CIPN as well as gauge the utility of neuroprotective mechanisms...
July 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28505262/the-basal-ganglia-striosomes-affect-the-modulation-of-conflicts-by-subliminal-information-evidence-from-x-linked-dystonia-parkinsonism
#15
Christian Beste, Moritz Mückschel, Raymond Rosales, Aloysius Domingo, Lillian Lee, Arlene Ng, Christine Klein, Alexander Münchau
Cognitive control is relevant when distracting information induces behavioral conflicts. Such conflicts can be produced consciously and by subliminally processed information. Interestingly, both sources of conflict interact suggesting that they share neural mechanisms. Here, we ask whether conjoint effects between different sources of conflict are modulated by microstructural basal ganglia dysfunction. To this end, we carried out an electroencephalography study and examined event-related potentials (ERPs) including source localization using a combined flanker-subliminal priming task in patients with X-linked dystonia Parkinsonism (XDP) and a group of healthy controls...
May 13, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28504930/extracorporeal-stimulation-of-sacral-nerve-roots-for-observation-of-pelvic-autonomic-nerve-integrity-description-of-a-novel-methodological-setup
#16
Tomasz Moszkowski, Daniel Kauff, Celine Wegner, Roman Ruff, Karin Somerlik-Fuchs, Thilo Krueger, Piotr Augustyniak, Klaus-Peter Hoffmann, Werner Kneist
INTRODUCTION: Neurophysiologic monitoring can improve autonomic nerve sparing during critical phases of rectal cancer surgery. OBJECTIVES: To develop a system for extracorporeal stimulation of sacral nerve roots. METHODS: Dedicated software controlled a ten-electrode stimulation array by switching between different electrode configurations and current levels. A built-in impedance and current level measurement assessed the effectiveness of current injection...
May 12, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28496558/using-the-native-afferent-nervous-system-to-sense-bladder-fullness-state-of-the-art
#17
Lauren E Tennyson, Changfeng Tai, Christopher J Chermansky
The regulation of micturition involves complex neurophysiologic pathways, and its understanding has grown immensely over the past decade. Alternative approaches and applied technologies in the treatment of bladder dysfunction have minimized the complications that result from neurogenic bladder. The use of natural bladder mechanoreceptors and electroneneurographic (ENG) signal recordings from afferent nerves to chronically monitor bladder volume is a promising concept, but the technology to accomplish this has proven to be a great biomedical engineering challenge...
December 2016: Current Bladder Dysfunction Reports
https://www.readbyqxmd.com/read/28486713/probing-the-behavioral-and-neurophysiological-effects-of-acute-smoking-abstinence-on-drug-and-nondrug-reinforcement-during-a-cognitive-task
#18
Nicolas J Schlienz, Larry W Hawk
Introduction: Smoking abstinence is theorized to increase smoking reinforcement and decrease nondrug reinforcement. A separate literature demonstrates the detrimental effects of abstinence on cognition. The present study integrates these two areas by examining the separate and combined effects of reinforcement and smoking abstinence on behavior and a neurophysiological index of response monitoring (ie, error-related negativity [ERN]) during a cognitive task. Methods: After a screening visit, adult smokers attended two laboratory visits, once while smoking and once while abstinent...
June 1, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28485777/influences-of-cisatracurium-besylate-and-vecuronium-bromide-on-muscle-relaxant-effects-and-electromyography-of-tracheal-intubation-under-general-anesthesia
#19
D-J Yu, H-Y Gao
OBJECTIVE: To observe the influences of atracurium besylate and vecuronium bromide on muscle relaxant effects and electromyography of patients with tracheal intubation under general anesthesia in thyroid surgery. PATIENTS AND METHODS: 120 patients treated with thyroid surgery were randomly divided into group A and group V. Patients in group A were administered with cisatracurium besylate combined with propofol and fentanyl for induction of tracheal intubation under general anesthesia...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28481390/multimodal-intraoperative-neurophysiologic-monitoring-in-the-neurosurgical-oncology
#20
Sema Brandmeier, Emine Taşkiran, Fatihhan Bölükbaşi, Ramazan Sari, İlhan Elmaci
AIM: Neurosurgical oncology that is performed for lesions located in critical areas like the sensorimotor area has additional risk because it may cause serious neurological deficiencies. Some intraoperative neuromonitoring (IONM) modalities can effectively help the surgeons to maximize resections of this kind of lesions with or without an acceptable neurological deficiency. Our aim was to share our IONM experiences with patients who underwent intracranial lesion surgery in critical areas between September 2013 and January 2015...
March 26, 2017: Turkish Neurosurgery
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