keyword
MENU ▼
Read by QxMD icon Read
search

Epilepsy device

keyword
https://www.readbyqxmd.com/read/28523978/closed-loop-neuromodulation-systems-next-generation-treatments-for-psychiatric-illness
#1
Meng-Chen Lo, Alik S Widge
Despite deep brain stimulation's positive early results in psychiatric disorders, well-designed clinical trials have yielded inconsistent clinical outcomes. One path to more reliable benefit is closed-loop therapy: stimulation that is automatically adjusted by a device or algorithm in response to changes in the patient's electrical brain activity. These interventions may provide more precise and patient-specific treatments. This article first introduces the available closed-loop neuromodulation platforms, which have shown clinical efficacy in epilepsy and strong early results in movement disorders...
April 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28521270/prediction-of-seizure-outcome-improved-by-fast-ripples-detected-in-low-noise-intraoperative-corticogram
#2
Tommaso Fedele, Georgia Ramantani, Sergey Burnos, Peter Hilfiker, Gabriel Curio, Thomas Grunwald, Niklaus Krayenbühl, Johannes Sarnthein
OBJECTIVE: Fast ripples (FR, 250-500Hz) in the intraoperative corticogram have recently been proposed as specific predictors of surgical outcome in epilepsy patients. However, online FR detection is restricted by their low signal-to-noise ratio. Here we propose the integration of low-noise EEG with unsupervised FR detection. METHODS: Pre- and post-resection ECoG (N=9 patients) was simultaneously recorded by a commercial device (CD) and by a custom-made low-noise amplifier (LNA)...
March 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28516343/therapeutic-dormancy-to-delay-postsurgical-glioma-recurrence-the-past-present-and-promise-of-focal-hypothermia
#3
REVIEW
Didier Wion
Surgery precedes both radiotherapy and chemotherapy as the first-line therapy for glioma. However, despite multimodal treatment, most glioma patients die from local recurrence in the resection margin. Glioma surgery is inherently lesional, and the response of brain tissue to surgery includes hemostasis, angiogenesis, reactive gliosis and inflammation. Unfortunately, these processes are also associated with tumorigenic side-effects. An increasing amount of evidence indicates that the response to a surgery-related brain injury is hijacked by residual glioma cells and participates in the local regeneration of tumor tissues at the resection margin...
May 17, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28502271/quality-of-sample-size-estimation-in-trials-of-medical-devices-high-risk-devices-for-neurological-conditions-as-example
#4
Britta Olberg, Matthias Perleth, Katja Felgentraeger, Sandra Schulz, Reinhard Busse
BACKGROUND: The aim of this study was to assess the quality of reporting sample size calculation and underlying design assumptions in pivotal trials of high-risk medical devices (MDs) for neurological conditions. METHODS: Systematic review of research protocols for publicly registered randomized controlled trials (RCTs). In the absence of a published protocol, principal investigators were contacted for additional data. To be included, trials had to investigate a high-risk MD, registered between 2005 and 2015, with indications stroke, headache disorders, and epilepsy as case samples within central nervous system diseases...
May 15, 2017: International Journal of Technology Assessment in Health Care
https://www.readbyqxmd.com/read/28496112/-tornado-theranostic-one-step-rna-detector-microfluidic-disc-for-the-direct-detection-of-microrna-134-in-plasma-and-cerebrospinal-fluid
#5
Hazel McArdle, Eva M Jimenez-Mateos, Rana Raoof, Eadaoin Carthy, David Boyle, Hany ElNaggar, Norman Delanty, Hajo Hamer, Muejgdan Dogan, Tessa Huchtemann, Peter Kӧrtvelyessy, Felix Rosenow, Robert J Forster, David C Henshall, Elaine Spain
Diagnosis of seizure disorders such as epilepsy currently relies on clinical examination and electroencephalogram recordings and is associated with substantial mis-diagnosis. The miRNA, miR-134 (MIR134 in humans), has been found to be elevated in brain tissue after experimental status epilepticus and in human epilepsy cells and their detection in biofluids may serve as unique biomarkers. miRNAs from unprocessed human plasma and human cerebrospinal fluid samples were used in a novel electrochemical detection based on electrocatalytic platinum nanoparticles inside a centrifugal microfluidic device where the sandwich assay is formed using an event triggered release system, suitable for the rapid point-of-care detection of low abundance biomarkers of disease...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28463617/robot-assisted-procedures-in-pediatric-neurosurgery
#6
Alessandro De Benedictis, Andrea Trezza, Andrea Carai, Elisabetta Genovese, Emidio Procaccini, Raffaella Messina, Franco Randi, Silvia Cossu, Giacomo Esposito, Paolo Palma, Paolina Amante, Michele Rizzi, Carlo Efisio Marras
OBJECTIVE During the last 3 decades, robotic technology has rapidly spread across several surgical fields due to the continuous evolution of its versatility, stability, dexterity, and haptic properties. Neurosurgery pioneered the development of robotics, with the aim of improving the quality of several procedures requiring a high degree of accuracy and safety. Moreover, robot-guided approaches are of special interest in pediatric patients, who often have altered anatomy and challenging relationships between the diseased and eloquent structures...
May 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28459961/crowdsourcing-seizure-detection-algorithm-development-and-validation-on-human-implanted-device-recordings
#7
Steven N Baldassano, Benjamin H Brinkmann, Hoameng Ung, Tyler Blevins, Erin C Conrad, Kent Leyde, Mark J Cook, Ankit N Khambhati, Joost B Wagenaar, Gregory A Worrell, Brian Litt
There exist significant clinical and basic research needs for accurate, automated seizure detection algorithms. These algorithms have translational potential in responsive neurostimulation devices and in automatic parsing of continuous intracranial electroencephalography data. An important barrier to developing accurate, validated algorithms for seizure detection is limited access to high-quality, expertly annotated seizure data from prolonged recordings. To overcome this, we hosted a kaggle.com competition to crowdsource the development of seizure detection algorithms using intracranial electroencephalography from canines and humans with epilepsy...
April 27, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28450153/epidural-focal-brain-cooling-abolishes-neocortical-seizures-in-cats-and-non-human-primates
#8
Takao Inoue, Masami Fujii, Hiroyuki Kida, Toshitaka Yamakawa, Yuichi Maruta, Tatsuji Tokiwa, Yeting He, Sadahiro Nomura, Yuji Owada, Takeshi Yamakawa, Michiyasu Suzuki
Focal brain cooling (FBC) is under investigation in preclinical trials of intractable epilepsy (IE), including status epilepticus (SE). This method has been studied in rodents as a possible treatment for epileptic disorders, but more evidence from large animal studies is required. To provide evidence that FBC is a safe and effective therapy for IE, we investigated if FBC using a titanium cooling plate can reduce or terminate focal neocortical seizures without having a significant impact on brain tissue. Two cats and two macaque monkeys were chronically implanted with an epidural FBC device over the somatosensory and motor cortex...
April 24, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28410885/successful-implantation-and-immediate-activation-of-vagus-nerve-stimulation-vns-during-pregnancy-in-a-patient-with-intractable-epilepsy-a-case-illustration-and-review-of-the-literature
#9
N Jazebi, N Moghimi, R Lall, E Osadebey, J Ortega-Barnett, T Masel
While Vagus Nerve Stimulation (VNS) is proven to be a safe and effective adjunctive therapy in the general population with medically intractable seizures, little is published about its implantation during pregnancy. Here we illustrate the case of a 21year old primigravid woman with medically refractory seizures who underwent safe and successful VNS implantation and immediate activation of the device in her 32nd week of pregnancy, resulting in dramatically improved seizure control and subsequent delivery of a healthy baby...
April 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28398014/brain-responsive-neurostimulation-in-patients-with-medically-intractable-mesial-temporal-lobe-epilepsy
#10
Eric B Geller, Tara L Skarpaas, Robert E Gross, Robert R Goodman, Gregory L Barkley, Carl W Bazil, Michael J Berg, Gregory K Bergey, Sydney S Cash, Andrew J Cole, Robert B Duckrow, Jonathan C Edwards, Stephan Eisenschenk, James Fessler, Nathan B Fountain, Alicia M Goldman, Ryder P Gwinn, Christianne Heck, Aamar Herekar, Lawrence J Hirsch, Barbara C Jobst, David King-Stephens, Douglas R Labar, James W Leiphart, W Richard Marsh, Kimford J Meador, Eli M Mizrahi, Anthony M Murro, Dileep R Nair, Katherine H Noe, Yong D Park, Paul A Rutecki, Vicenta Salanova, Raj D Sheth, Donald C Shields, Christopher Skidmore, Michael C Smith, David C Spencer, Shraddha Srinivasan, William Tatum, Paul C Van Ness, David G Vossler, Robert E Wharen, Gregory A Worrell, Daniel Yoshor, Richard S Zimmerman, Kathy Cicora, Felice T Sun, Martha J Morrell
OBJECTIVE: Evaluate the seizure-reduction response and safety of mesial temporal lobe (MTL) brain-responsive stimulation in adults with medically intractable partial-onset seizures of mesial temporal lobe origin. METHODS: Subjects with mesial temporal lobe epilepsy (MTLE) were identified from prospective clinical trials of a brain-responsive neurostimulator (RNS System, NeuroPace). The seizure reduction over years 2-6 postimplantation was calculated by assessing the seizure frequency compared to a preimplantation baseline...
April 11, 2017: Epilepsia
https://www.readbyqxmd.com/read/28396294/chronic-ambulatory-electrocorticography-from-human-speech-cortex
#11
Vikram R Rao, Matthew K Leonard, Jonathan K Kleen, Ben A Lucas, Emily A Mirro, Edward F Chang
Direct intracranial recording of human brain activity is an important approach for deciphering neural mechanisms of cognition. Such recordings, usually made in patients with epilepsy undergoing inpatient monitoring for seizure localization, are limited in duration and depend on patients' tolerance for the challenges associated with recovering from brain surgery. Thus, typical intracranial recordings, similar to most non-invasive approaches in humans, provide snapshots of brain activity in acute, highly constrained settings, limiting opportunities to understand long timescale and natural, real-world phenomena...
April 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/28390806/the-vagal-nerve-stimulation-outcome-and-laryngeal-effect-otolaryngologists-roles-and-perspective
#12
Ahmad I Al Omari, Firas Q Alzoubi, Mohammad M Alsalem, Samah K Aburahma, Diala T Mardini, Paul F Castellanos
INTRODUCTION: Epilepsy is one of the most common neurologic disorders. Vagus nerve stimulation (VNS), first investigated in 1938 and subsequently studied as a potential therapy for epilepsy. The FDA approved the use of VNS in 1997 as an adjunctive non-pharmacologic symptomatic treatment option for refractory epilepsy for adults and adolescents over 12years. VNS can cause laryngeal and voice side effects that can be managed by otolaryngologists safely and effectively. OBJECTIVES: This study is to review the outcomes of vagal nerve stimulator (VNS) implantation in terms of the surgical procedures, complications, seizure frequency, and the clinical effect on larynx and vocal folds motion...
April 4, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28387951/brain-responsive-neurostimulation-in-patients-with-medically-intractable-seizures-arising-from-eloquent-and-other-neocortical-areas
#13
Barbara C Jobst, Ritu Kapur, Gregory L Barkley, Carl W Bazil, Michel J Berg, Gregory K Bergey, Jane G Boggs, Sydney S Cash, Andrew J Cole, Michael S Duchowny, Robert B Duckrow, Jonathan C Edwards, Stephan Eisenschenk, A James Fessler, Nathan B Fountain, Eric B Geller, Alica M Goldman, Robert R Goodman, Robert E Gross, Ryder P Gwinn, Christianne Heck, Aamr A Herekar, Lawrence J Hirsch, David King-Stephens, Douglas R Labar, W R Marsh, Kimford J Meador, Ian Miller, Eli M Mizrahi, Anthony M Murro, Dileep R Nair, Katherine H Noe, Piotr W Olejniczak, Yong D Park, Paul Rutecki, Vicenta Salanova, Raj D Sheth, Christopher Skidmore, Michael C Smith, David C Spencer, Shraddha Srinivasan, William Tatum, Paul Van Ness, David G Vossler, Robert E Wharen, Gregory A Worrell, Daniel Yoshor, Richard S Zimmerman, Tara L Skarpaas, Martha J Morrell
OBJECTIVE: Evaluate the seizure-reduction response and safety of brain-responsive stimulation in adults with medically intractable partial-onset seizures of neocortical origin. METHODS: Patients with partial seizures of neocortical origin were identified from prospective clinical trials of a brain-responsive neurostimulator (RNS System, NeuroPace). The seizure reduction over years 2-6 postimplantation was calculated by assessing the seizure frequency compared to a preimplantation baseline...
April 7, 2017: Epilepsia
https://www.readbyqxmd.com/read/28386925/vagus-nerve-stimulation-surgical-technique-of-implantation-and-revision-and-related-morbidity
#14
Flavio Giordano, Anna Zicca, Carmen Barba, Renzo Guerrini, Lorenzo Genitori
Indications for vagus nerve stimulation (VNS) therapy include focal, multifocal epilepsy, drop attacks (tonic/atonic seizures), Lennox-Gastaut syndrome, tuberous sclerosis complex (TSC)-related multifocal epilepsy, and unsuccessful resective surgery. Surgical outcome is about 50-60% for seizures control, and may also improve mood, cognition, and memory. On this basis, VNS has also been proposed for the treatment of major depression and Alzheimer's' disease. The vagus nerve stimulator must be implanted with blunt technique on the left side to avoid cardiac side effects through the classic approach for anterior cervical discectomy...
April 2017: Epilepsia
https://www.readbyqxmd.com/read/28369748/reasons-for-discontinuation-of-reversible-contraceptive-methods-by-women-with-epilepsy
#15
Hannah B Mandle, Kaitlyn E Cahill, Kristen M Fowler, W Allen Hauser, Anne R Davis, Andrew G Herzog
OBJECTIVE: To report the reasons for discontinuation of contraceptive methods by women with epilepsy (WWE). METHODS: These retrospective data come from a web-based survey regarding the contraceptive practices of 1,144 WWE in the community, ages 18-47 years. We determined the frequencies of contraceptive discontinuations and the reasons for discontinuation. We compared risk ratios for rates of discontinuation among contraceptive methods and categories. We used chi-square analysis to test the independence of discontinuation reasons among the various contraceptive methods and categories and when stratified by antiepileptic drug (AED) categories...
April 3, 2017: Epilepsia
https://www.readbyqxmd.com/read/28324954/hardware-friendly-seizure-detection-with-a-boosted-ensemble-of-shallow-decision-trees
#16
Mahsa Shoaran, Masoud Farivar, Azita Emami
Efficient on-chip learning is becoming an essential element of implantable biomedical devices. Despite a substantial literature on automated seizure detection algorithms, hardware-friendly implementation of such techniques is not sufficiently addressed. In this paper, we propose to employ a gradientboosted ensemble of decision trees to achieve a reasonable trade-off between detection accuracy and implementation cost. Combined with the proposed feature extraction model, we show that these classifiers quickly become competitive with more complex learning models previously proposed for hardware implementation, with only a small number of low-depth (d <; 4) "shallow" trees...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28291867/development-and-validation-of-a-brain-phantom-for-therapeutic-cooling-devices
#17
Ryan D M Packett, Philip J Brown, Gautam S S Popli, F Scott Gayzik
Tissue cooling has been proven as a viable therapy for multiple conditions and injuries and has been applied to the brain to treat epilepsy and concussions, leading to improved long-term outcomes. To facilitate the study of temperature reduction as a function of various cooling methods, a thermal brain phantom was developed and analyzed. The phantom is composed of a potassium-neutralized, superabsorbent copolymer hydrogel. The phantom was tested in a series of cooling trials using a cooling block and 37 deg water representing nondirectional blood flow ranging up to 6 gph, a physiologically representative range based on the prototype volume...
May 1, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28268493/automatic-seizure-detection-using-correlation-integral-with-nonlinear-adaptive-denoising-and-kalman-filter
#18
Hongda Wang, Chiu-Sing Choy
The ability of correlation integral for automatic seizure detection using scalp EEG data has been re-examined in this paper. To facilitate the detection performance and overcome the shortcoming of correlation integral, nonlinear adaptive denoising and Kalman filter have been adopted for pre-processing and post-processing. The three-stage algorithm has achieved 84.6% sensitivity and 0.087/h false detection rate, which are comparable to many machine learning based methods, but at much lower computational cost...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28251589/neurostimulation-devices-used-in-treatment-of-epilepsy
#19
REVIEW
Evren Burakgazi Dalkilic
Epilepsy is a chronic neurological disorder frequently requiring lifelong treatment. In 70% of epilepsy patients, seizures are well controlled by antiepileptic medications. About 30% of epilepsy patients remain refractory to medical treatments and may need surgical interventions for better seizure control. Unfortunately and not infrequently, surgical intervention is not feasible due to various reasons such as multiple seizure foci, not resectable focus because of eloquent cortex location, or inability to tolerate surgery due to ongoing concomitant medical conditions...
February 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28242084/understanding-death-in-children-with-epilepsy
#20
REVIEW
Elizabeth J Donner, Peter Camfield, Linda Brooks, Jeffrey Buchhalter, Carol Camfield, Tobias Loddenkemper, Elaine Wirrell
Death in children with epilepsy is profoundly disturbing, with lasting effects on the family, community, and health care providers. The overall risk of death for children with epilepsy is about ten times that of the general population. However, the risk of premature death for children without associated neurological comorbidities is similar to that of the general population, and most deaths are related to the cause of the epilepsy or associated neurologic disability, not seizures. The most common cause of seizure-related death in children with epilepsy is sudden unexpected death in epilepsy (SUDEP)...
January 31, 2017: Pediatric Neurology
keyword
keyword
101929
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"