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Relevant bibliographies by topics / Epidural recordings

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Academic literature on the topic 'Epidural recordings'

Author: Grafiati

Published: 5 June 2025

Last updated: 25 June 2025

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Journal articles on the topic "Epidural recordings"

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Barnett, Gene H., Richard C. Burgess, Issam A. Award, George J. Skipper, Christopher R. Edwards, and Hans Luders. "Epidural Peg Electrodes for the Presurgical Evaluation of Intractable Epilepsy." Neurosurgery 27, no. 1 (1990): 113–15. http://dx.doi.org/10.1227/00006123-199007000-00016.

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Abstract A new electrode design for the extradural recording of electrical brain activity is described. Epidural peg electrodes are implantable mushroom-shaped composites of Silastic clastomer and a stainless steel or platinum disc. These electrodes are useful for the preoperative mapping of seizure foci in some patients who have cranial defects or severe muscle artifacts on scalp recordings. They are also used for canvassing wide areas of cortex to determine whether a seizure is focal in origin, arises diffusely from a hemisphere, or has a bilateral origin. Advantages of epidural peg electrodes over screw and other types of epidural electrodes include low risk of infection or hemorrhage and improved patient comfort.

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Haumann, S., G. Bauernfeind, M. J. Teschner, et al. "Epidural recordings in cochlear implant users." Journal of Neural Engineering 16, no. 5 (2019): 056008. http://dx.doi.org/10.1088/1741-2552/ab1e80.

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Haumann, S., G. Bauernfeind, M. J. Teschner, et al. "Epidural recordings in cochlear implant users." Journal of Neural Engineering 16 (June 5, 2019): 1–13. https://doi.org/10.1088/1741-2552/ab1e80.

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Niedermeyer, Ernst, and Sumio Uematsu. "Epidural EEG Recordings in Candidates for Temporal Lobectomy." Journal of Clinical Neurophysiology 5, no. 4 (1988): 328. http://dx.doi.org/10.1097/00004691-198810000-00012.

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Bauernfeind, G., M. J. Teschner, S. C. Wriessnegger, A. Büchner, T. Lenarz, and S. Haumann. "Towards single-trial classification of invasively recorded auditory evoked potentials in cochlear implant users." Journal of Neural Engineering 19, no. 2 (2022): 026002. http://dx.doi.org/10.1088/1741-2552/ac572d.

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Abstract Objective. One promising approach towards further improving cochlear implants (CI) is to use brain signals controlling the device in order to close the auditory loop. Initial electroencephalography (EEG) studies have already shown promising results. However, they are based on noninvasive measurements, whereas implanted electrodes are expected to be more convenient in terms of everyday-life usability. If additional measurement electrodes were implanted during CI surgery, then invasive recordings should be possible. Furthermore, implantation will provide better signal quality, higher robustness to artefacts, and thus enhanced classification accuracy. Approach. In an initial project, three additional epidural electrodes were temporarily implanted during the surgical procedure. After surgery, different auditory evoked potentials (AEPs) were recorded both invasively (epidural) and using surface electrodes, with invasively recorded signals demonstrated as being markedly superior. In this present analysis, cortical evoked response audiometry (CERA) signals recorded in seven patients were used for single-trial classification of sounds with different intensities. For classification purposes, we used shrinkage-regularized linear discriminant analysis (sLDA). Clinical speech perception scores were also investigated. Main results. Analysis of CERA data from different subjects showed single-trial classification accuracies of up to 99.2% for perceived vs. non-perceived sounds. Accuracies of up to 89.1% were achieved in classification of sounds perceived at different intensities. Highest classification accuracies were achieved by means of epidural recordings. Required loudness differences seemed to correspond to speech perception in noise. Significance. The proposed epidural recording approach showed good classification accuracy into sound perceived and not perceived when the best-performing electrodes were selected. Classifying different levels of sound stimulation accurately proved more challenging. At present, the methods explored in this study would not be sufficiently reliable to allow automated closed-loop control of CI parameters. However, our findings are an important initial contribution towards improving applicability of closed auditory loops and for next-generation automatic fitting approaches.

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Steven, David A., and Richard S. McLachlan. "Intracranial Telemetry Recording of Intractable Epilepsy at London Health Sciences." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 39, S6 (2012): S10—S13. http://dx.doi.org/10.1017/s0317167100018114.

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Routine EEG telemetry using scalp electrode recordings is carried out in all patients being considered for epilepsy surgery. However this, along with other testing, may not yield sufficient information about the location of seizure onset to allow a decision regarding surgery to be made. Various methods have been developed to implant electrodes for chronic recording closer to the cortical surface from which seizures arise including the use of sphenoidal, foramen ovale, epidural peg, subdural and depth electrodes. This is a review of the last two techniques particularly as utilized at London Health Sciences Centre.

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Ross, Donald A., Thomas R. Henry, and Lawrence D. Dickinson. "A Percutaneous Epidural Screw Electrode for Intracranial Electroencephalogram Recordings." Neurosurgery 33, no. 2 (1993): 332–34. http://dx.doi.org/10.1227/00006123-199308000-00026.

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Ross, Donald A., Thomas R. Henry, and Lawrence D. Dickinson. "A Percutaneous Epidural Screw Electrode for Intracranial Electroencephalogram Recordings." Neurosurgery 33, no. 2 (1993): 332–34. http://dx.doi.org/10.1097/00006123-199308000-00026.

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Miyazawa, T., and K. A. Hossmann. "Methodological Requirements for Accurate Measurements of Brain and Body Temperature during Global Forebrain Ischemia of Rat." Journal of Cerebral Blood Flow & Metabolism 12, no. 5 (1992): 817–22. http://dx.doi.org/10.1038/jcbfm.1992.113.

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The methodological requirements for accurate measurements of brain and body temperature during brain ischemia have been validated in Wistar rats submitted to 30 min of four-vessel occlusion. During ischemia, brains were exposed to three different temperature profiles: Spontaneous cooling from 36 to 31°C ( n = 10), constant hypothermia at 30°C ( n = 19), and constant normothermia at 36°C ( n = 21). Direct and indirect brain temperature recordings were carried out by placing fine thermocouples (200 μm diameter) into the striate nucleus, the temporal muscle, and the epidural space. Body temperature was measured with a flexible thermocouple inserted at various depths into the rectum. Accurate measurements of body temperature required insertion of the rectal probe to a depth of at least 6 cm; lesser insertion resulted in an underestimation of up to 6°C. Accurate estimates of brain temperature were obtained in all three experimental conditions by recording of the epidural temperature. The temperature in the temporal muscle, by contrast, differed from the brain temperature by up to 2°C, depending upon the experimental condition and the duration of ischemia. We therefore suggest that indirect measurements of brain temperature during ischemia are carried out in the epidural space in order to avoid misinterpretations of temperature-sensitive pathological changes.

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Gloor, Pierre. "Preoperative Electroencephalographic Investigation in Temporal Lobe Epilepsy: Extracranial and Intracranial Recordings." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 18, S4 (1991): 554–58. http://dx.doi.org/10.1017/s0317167100032686.

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ABSTRACT:Preoperative EEG investigations of patients with temporal lobe seizures include extracranial interictal and ictal recordings during wakefulness and sleep, including long-term EEG and video-monitoring. Interictal epileptiform discharges when evaluated conservatively and in conjunction with other EEG and non-EEG localizing information, provide valuable guidance for the identification of the area to be resected, as do ictal recordings. When extracranial EEG features in conjunction with non-EEG data provide conflicting localizing information, intracranial recordings with stereotaxically implanted depth and epidural electrodes are used. Intracranial recordings must be designed to avoid biasing the exploration strategy in favor of one's preferred localizing hypothesis. Patients with evidence for bitemporal epileptogenic dysfunction in extracranial EEG recordings are suitable candidates for intracranial recordings. The majority of the patients explored in this manner show that all or more than 80% of their seizures arise from one temporal lobe. Excision of that lobe yields satisfactory results in a fair proportion of these patients. The number of satisfactory outcomes is, however, still somewhat less than in patients with unilateral temporal foci in extracranial EEG recordings.

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Dissertations / Theses on the topic "Epidural recordings"

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Jung, Fabienne [Verfasser], Heike [Akademischer Betreuer] Endepols, and Ansgar [Akademischer Betreuer] Büschges. "Mismatch responses in the awake rat: Evidence from epidural recordings of auditory cortical fields / Fabienne Jung. Max-Planck-Institut für neurologische Forschung. Gutachter: Heike Endepols ; Ansgar Büschges." Köln : Universitäts- und Stadtbibliothek Köln, 2013. http://d-nb.info/1038486599/34.

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Books on the topic "Epidural recordings"

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Di Lazzaro, Vicenzo. Transcranial stimulation measures explored by epidural spinal cord recordings. Edited by Charles M. Epstein, Eric M. Wassermann, and Ulf Ziemann. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780198568926.013.0014.

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In response to a single-electrical stimulus to the motor cortex an electrode placed in the medullary pyramid or on the dorsolateral surface of the cervical spinal cord records a series of high-frequency waves. This has been shown by various studies conducted on animals. Recording from the surface of the spinal cord during spinal cord surgery has provided evidence for the action of transcranial magnetic stimulation (TMS) and transcranial electrical stimulation (TES) on the human motor cortex. However, the interpretation of this data has been limited. This article explains both types of transcranial stimulation (magnetic or electrical) the direct recording of which shows that transcranial stimulation can evoke several different kinds of descending activities. The output also depends upon the representation of the motor cortex being stimulated.

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Book chapters on the topic "Epidural recordings"

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Nichtweiss, Michael, Gesine Heetderks, and Daniel Rosenthal. "The Diagnosis of Idiopathic “Normal Pressure” Hydrocephalus: Clinical features, CT and epidural pressure recording." In Annual Review of Hydrocephalus. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-662-11155-0_113.

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HALONEN, JUKKA-PEKKA, STEPHEN J. JONES, MICHAEL A. EDGAR, and ANDREW O. RANSFORD. "Multi-Level Epidural Recordings of Spinal SEPs during Scoliosis Surgery." In New Trends and Advanced Techniques in Clinical Neurophysiology. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-444-81352-7.50041-8.

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Field, Nicholas C., and Julie G. Pilitsis. "Trigeminal Neuropathic Pain." In Pain Neurosurgery. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190887674.003.0019.

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Motor cortex stimulation is a surgical treatment for medically refractory trigeminal neuropathic pain, a syndrome often caused by nerve injury due to trauma, dental work, or previous surgery for trigeminal neuralgia. Preoperative planning includes pain assessment scales, psychological clearance, and functional magnetic resonance imaging (fMRI) to map the motor cortex. The patient undergoes a craniotomy with trial placement of an epidural electrode array, assisted by neuronavigation, phase reversal monitoring, and somatosensory evoked potential recordings. Less commonly, the electrodes are placed in the subdural space. Postoperative seizure is the most common complication, additionally there are risks for infection and hemorrhage. Programming of the device is performed and the patient undergoes permanent implantation of the system if they achieve a greater than 50% reduction in their pain. Further research is necessary to determine which patients will have the best response to therapy.

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Conference papers on the topic "Epidural recordings"

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Meijs, Suzan, Felipe R. Andreis, Taha A. M. Janjua, and Winnie Jensen. "Reliability of a cranial window for chronic epidural recordings from the pig primary somatosensory cortex." In 2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2024. https://doi.org/10.1109/embc53108.2024.10782109.

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Haumann, S., G. Bauernfeind, MJ Teschner, MG Bleichner, J. Rieger, and T. Lenarz. "Epidural Recordings of Auditory Evoked Potentials in Cochlear Implant Users." In Abstract- und Posterband – 89. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Forschung heute – Zukunft morgen. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1640349.

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Judy, Brendan F., A. Daniel Davidar, Andrew Hersh, et al. "Robotic cervical fixation and sEEG depth electrode placement – pushing the boundaries." In The Hamlyn Symposium on Medical Robotics: "MedTech Reimagined". The Hamlyn Centre, Imperial College London London, UK, 2022. http://dx.doi.org/10.31256/hsmr2022.79.

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The ExcelsiusGPS (Globus Medical, Inc., Audubon, PA) robot received clearance from the United States Food and Drug Administration for clinical use in 2017 with the first in human use for lumbar spine instrumentation at Johns Hopkins Hospital the same year. The applications of the robot soon expanded with the first interbody cage placement in 2020 and first deep brain stimulation performed in 2021. A metanalysis by Kosmopoulos et al1 found that of 37,337 pedicle screws implanted by freehand, 34,107 (91.3%) were found to be placed accurately. Furthermore, there was a higher rate of accuracy in the navigation group (95.2%) compared to without navigation (90.3%). Initial studies with the ExcelsiusGPS robot reported successful lumbar pedicle screw placement rate of 97.4% (339/348)2 and 99% (555/562).3 The ExcelsiusGPS robot has been shown to increase screw placement accuracy enabling utilization of longer screw length and diameters, reduce radiation exposure and surgical time.4 While conventional uses of the robot in spine surgery are pedicle screw placement and sacroiliac fusion, newer navigated interbody placement software hopes to minimize spinal cord injury during interbody placement. Current use in cranial surgery include biopsy, deep brain stimulation, and stereoelectroencephalography (sEEG). High cervical fixation involving C1 and C2 is a complex surgery with potentially severe complications including screw malposition causing damage to neural and/or vascular structures. In a study evaluating the accuracy of free-hand technique of C2 pars screw placement, 11% of screws were mispositioned using the cortical-breach grading system5. Among high cervical transarticular screws, the most common complication included screw misposition at 7% while vertebral artery injury occurred in about 3% of patients6. It was noted that anatomic constraints for this procedure involve alignment of C1 and C2 while inadequate reduction of C1 and C2 contributed to screw misposition. Due to these complications, higher accuracy is needed. Common complications of depth electrode placement for sEEG are hemorrhage related (eg: subdural hematoma, epidural hematoma or intracerebral hemorrhage) and hardware related complications such as malpositioning, electrode fracture, or electrode-recording malfunction7. Robotic navigation aims to reduce these events and increase accuracy. Here we report the first case series of high cervical fixation and sEEG depth electrode placement using the ExcelsiusGPS robot.

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