keyword
MENU ▼
Read by QxMD icon Read
search

SSEP

keyword
https://www.readbyqxmd.com/read/28526648/somatosensory-evoked-potentials-during-temporary-arterial-occlusion-for-intracranial-aneurysm-surgery-predictive-value-for-perioperative-stroke
#1
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/28513860/cortical-contributions-to-sensory-gating-in-the-ipsilateral-somatosensory-cortex-during-voluntary-activity
#2
Yuming Lei, Monica A Perez
An important principle in the organization of the somatosensory cortex is that it processes afferent information from the contralateral side of the body. The role of the ipsilateral somatosensory cortex (iS1) in sensory gating in humans remains largely unknown. Using electroencephalographic recordings over the iS1 and electrical stimulation of the ulnar nerve at the wrist we examined somatosensory evoked potentials (SSEPs; P14/N20, N20/P25, and P25/N33 components) and paired-pulse SSEPs between (interhemispheric inhibition) and within (intracortical inhibition) the iS1 at rest and during tonic index finger voluntary activity...
May 17, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28506346/-role-of-short-latency-somatosensory-evoked-potential-in-the-diagnosis-of-chronic-inflammatory-demyelinating-polyneuropathy
#3
Rui-Di Sun, Bing Fu, Jun Jiang
OBJECTIVE: To investigate the role of short-latency somatosensory evoked potential (SSEP) in the diagnosis of chronic inflammatory demyelinating polyneuropathy (CIDP). METHODS: A total of 48 children with a confirmed or suspected CIDP and 40 healthy children were enrolled. Nerve electrophysiological examination and/or SSEP examination was performed (the children in the healthy control group only underwent SSEP examination). Four-lead electromyography was used for nerve electrophysiological examination, including at least 4 motor nerves and 2 sensory nerves...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28503454/quantitative-assessment-of-proprioception-using-dynamometer-in-incomplete-spinal-cord-injury-patients-a-preliminary-study
#4
Won Kee Chang, Yun Suk Jung, Mi-Kyoung Oh, Keewon Kim
OBJECTIVE: To investigate the feasibility of a knee proprioception evaluation using a dynamometer as a tool for evaluating proprioception of the lower extremities in patients with incomplete spinal cord injury (SCI), and to explore its usefulness in predicting the ambulatory outcome. METHODS: A total of 14 SCI patients (10 tetraplegic, 4 paraplegic; all AIS D) were included in this study. The passive repositioning error (PRE) and active repositioning error (ARE) were measured with a dynamometer, along with tibial somatosensory evoked potential (SSEP) and abductor hallucis motor-evoked potential (MEP)...
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28497927/the-potential-role-of-pain-related-sseps-in-the-early-prognostication-of-long-term-functional-outcome-in-post-anoxic-coma
#5
Alessandra Del Felice, Stefano Bargellesi, Federico Linassi, Bruno Scarpa, Emanuela Formaggio, Paolo Boldrini, Stefano Masiero, Paolo Zanatta
BACKGROUND: Cardiac arrest (CA) is a common cause of disability. Multimodal evaluation has improved prognosis but precocious biomarkers are not appropriate in determining long-term functional outcome. AIM: to identify early prognostication markers of long-term functional outcome in post-anoxic coma. DESIGN: retrospective assessment of outcomes. POPULATION: Individuals older than 18 years with post-anoxic coma hospitalized in intensive care units after cardiac arrest (CA) regardless of cause (cardiac or non-cardiac) and location of event (in or out-of-hospital)...
May 12, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28485386/monitoring-rate-and-predictability-of-intraoperative-monitoring-in-patients-with-intradural-extramedullary-and-epidural-metastatic-spinal-tumors
#6
H Kang, H S Gwak, S H Shin, M K Woo, I H Jeong, H Yoo, J W Kwon, S H Lee
STUDY DESIGN: Single-center retrospective study. OBJECTIVES: To evaluate the monitoring rate, sensitivity and specificity of intraoperative monitoring (IOM) during removal of intradural extramedullary (IDEM) or epidural metastatic spinal tumors. Also, to assess the efficacy of monitoring somatosensory-evoked potentials (SSEP) when motor-evoked potentials (MEP) are not measurable. SETTING: The Neuro-Oncology Clinic, National Cancer Center, Korea...
May 9, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28470675/early-prediction-of-coma-recovery-after-cardiac-arrest-with-blinded-pupillometry
#7
Daria Solari, Andrea O Rossetti, Laurent Carteron, John-Paul Miroz, Jan Novy, Philippe Eckert, Mauro Oddo
Objectives Prognostication studies on comatose cardiac arrest (CA) patients are limited by lack of blinding, potentially causing overestimation of outcome predictors and self-fulfilling prophecy. Using a blinded approach, we analysed the value of quantitative automated pupillometry to predict neurological recovery after CA. Methods We examined a prospective cohort of 103 comatose adult patients who were unconscious 48 hours after CA and underwent repeated measurements of quantitative pupillary light reflex (PLR) using the Neurolight-Algiscan® device...
May 3, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28462632/the-relationship-between-trans-lesional-conduction-motor-neuron-pool-excitability-and-motor-function-in-dogs-with-incomplete-recovery-from-severe-spinal-cord-injury
#8
Melissa Lewis, James Howard, Natasha Olby
Spontaneous, acute, complete thoracolumbar spinal cord injury (TL-SCI) in dogs frequently results in permanent deficits modelling chronic paralysis in people. Recovery of walking without recovery of sensation has been interpreted in dogs as reflexive spinal walking. To evaluate this assumption, this study characterized the electrophysiologic status of motor and sensory long tracts and local reflex circuitry in dogs with absent recovery of sensation following acute TL-SCI and correlated findings to gait scores...
May 2, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28446582/auditory-fear-conditioning-modifies-steady-state-evoked-potentials-in-the-rat-inferior-colliculus
#9
André Luiz Vieira Lockmann, Flavio Afonso Gonçalves Mourão, Márcio Flávio Dutra Moraes
The rat inferior colliculus (IC) is a major midbrain relay for ascending inputs from the auditory brainstem and has been suggested to play a key role in the processing of aversive sounds. Previous studies have demonstrated that auditory fear conditioning (AFC) potentiates transient responses to brief tones in the IC, but it remains unexplored whether AFC modifies responses to sustained periodic acoustic stimulation - a type of response called steady-state evoked potential (SSEP). Here we used an amplitude-modulated tone - 10 kHz tone with a sinusoidal amplitude modulation of 53...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28436812/retrospective-waveform-analysis-of-transcranial-motor-evoked-potentials-mep-to-identify-early-predictors-of-impending-motor-deficits-in-spinal-surgeries
#10
Scheherazade Le, Viet Nguyen, Alexander C Ekwueme, S Charles Cho, Leslie Lee, Jaime López
PURPOSE: Although there are guidelines analyzing transcranial motor evoked potentials (MEP) waveform criteria, they vary widely and are not applied universally during intraoperative neurophysiologic monitoring (IONM). The objective is to generate hypotheses to identify early and reliable MEP waveform characteristics prior to complete loss of MEP to predict impending motor spinal cord injuries during spinal surgeries. The ultimate goal is to enhance real-time feedback to prevent injury or detect reversible spinal cord damage...
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28433839/the-diagnostic-accuracy-of-evoked-potential-monitoring-techniques-during-intracranial-aneurysm-surgery-for-predicting-postoperative-ischaemic-damage-a-systematic-review-and-meta-analysis
#11
REVIEW
Benjamin Thomas, Dongsheng Guo
OBJECTIVE: To investigate the diagnostic accuracy of various evoked potential monitoring techniques in predicting postoperative neurological deficit in intracranial aneurysm surgery. METHODS: A literature search of the MEDLINE, Embase and Cochrane databases was conducted for English language papers published between 31 March 1983 and 31 March 2016. Original studies that reported the use of evoked potential monitoring during intracranial aneurysm surgery in predicting postoperative neurological damage were selected, and their relevant reference lists were hand searched...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28430035/noninvasive-neuromodulation-and-thalamic-mapping-with-low-intensity-focused-ultrasound
#12
Robert F Dallapiazza, Kelsie F Timbie, Stephen Holmberg, Jeremy Gatesman, M Beatriz Lopes, Richard J Price, G Wilson Miller, W Jeffrey Elias
OBJECTIVE Ultrasound can be precisely focused through the intact human skull to target deep regions of the brain for stereotactic ablations. Acoustic energy at much lower intensities is capable of both exciting and inhibiting neural tissues without causing tissue heating or damage. The objective of this study was to demonstrate the effects of low-intensity focused ultrasound (LIFU) for neuromodulation and selective mapping in the thalamus of a large-brain animal. METHODS Ten Yorkshire swine ( Sus scrofa domesticus) were used in this study...
April 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28412564/outcomes-of-patients-with-syringomyelia-undergoing-spine-deformity-surgery-do-large-syrinxes-behave-differently-than-small
#13
Amer F Samdani, Steven W Hwang, Anuj Singla, James T Bennett, Robert J Ames, Jeff S Kimball
BACKGROUND CONTEXT: A paucity of data exists studying outcomes of patients with syringomyelia undergoing spinal deformity correction. The literature does not stratify patients by syrinx size, which is likely a major contributor to outcomes. PURPOSE: To compare differences in outcomes between patients with large (≥ 4mm) and small syrinxes (< 4mm) undergoing spinal deformity correction. DESIGN: Retrospective review PATIENT SAMPLE: 28 patients (11 with large syrinx [LS, ≥ 4mm] and 17 with small syrinx [SS, < 4mm])...
April 12, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28375940/electrophysiological-studies-to-detect-peripheral-neuropathy-in-children-treated-with-vincristine
#14
Marko Kavcic, Blaz Koritnik, Matevz Krzan, Orjana Velikonja, Tomaz Prelog, Milica Stefanovic, Maruša Debeljak, Janez Jazbec
Patients treated with vincristine predictably develop peripheral neuropathy. The aim of our study was to investigate the pattern of vincristine-induced neuropathy in children by nerve conduction studies and somatosensory-evoked potentials (SSEPs). We included data from 39 children who received vincristine for various pediatric malignancies, and we performed initial and follow-up (after a minimum of 4 doses of vincristine 1.5 mg/m) conduction studies in 27 patients and SSEPs studies in 34 patients. On follow-up the most prevalent symptoms were paresthesias (44%) and constipation (22%), and the most common neurological sign was impaired myotatic reflexes (89%)...
May 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28374331/predictive-factors-for-neurological-deterioration-after-surgical-decompression-for-thoracic-ossified-yellow-ligament
#15
Chris Yuk Kwan Tang, Jason Pui Yin Cheung, Dino Samartzis, Ka Hei Leung, Yat Wa Wong, Keith Dip Kei Luk, Kenneth Man Chee Cheung
PURPOSE: To investigate the rate and predictive factors of post-operative neurological deterioration in ossified yellow ligament (OYL) surgery. METHODS: A retrospective review was conducted for all patients with thoracic OYL causing myelopathy requiring surgical decompression from January 1998 to December 2012. Clinical parameters under study included clinical presentation, distribution of OYL, pre-operative walking score, pre- and post-operative neurological status, status of intra-operative neurophysiological monitoring, and modified Japanese Orthopaedic Association (mJOA) score...
April 3, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28371785/ultrahigh-density-256-channel-neural-sensing-microsystem-using-tsv-embedded-neural-probes
#16
Yu-Chieh Huang, Po-Tsang Huang, Shang-Lin Wu, Yu-Chen Hu, Yan-Huei You, Jr-Ming Chen, Yan-Yu Huang, Hsiao-Chun Chang, Yen-Han Lin, Jeng-Ren Duann, Tzai-Wen Chiu, Wei Hwang, Kuan-Neng Chen, Ching-Te Chuang, Jin-Chern Chiou
Highly integrated neural sensing microsystems are crucial to capture accurate signals for brain function investigations. In this paper, a 256-channel neural sensing microsystem with a sensing area of 5 × 5 mm2 is presented based on 2.5-D through-silicon-via (TSV) integration. This microsystem composes of dissolvable μ-needles, TSV-embedded μ-probes, 256-channel neural amplifiers, 11-bit area-power-efficient successive approximation register analog-to-digital converters, and serializers. This microsystem can detect 256 electrocorticography and local field potential signals within a small area of 5 mm × 5 mm...
March 30, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28364333/the-effect-from-different-numbers-of-segmental-arteries-ligation-to-the-spinal-cord-in-the-clinical-practice-of-posterior-vertebral-column-resection-correction
#17
Zhi Zhao, Jingming Xie, Yingsong Wang, Ni Bi, Tao Li, Ying Zhang, Zhiyue Shi
PURPOSE: In using posterior vertebral column resection (PVCR) to treat severe kyphoscoliosis, it is unavoidable to ligate and cut off several segmental arteries (SAs) of the spinal cord for exposure and hemostasis, but which would raise the neurological risks. The aim of this study is to explore the changes of intraoperative spinal cord monitoring (IOM) following ligating different numbers of SAs in PVCR. METHODS: Twenty-one consecutive patients with severe kyphoscoliosis were included and treated by PVCR correction...
March 31, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28360533/effects-of-decompression-on-behavioral-electrophysiologic-and-histomorphologic-recovery-in-a-chronic-sciatic-nerve-compression-model-of-streptozotocin-induced-diabetic-rats
#18
Ping-Hui Wang, Cheng-Chang Yang, Wei-Ren Su, Po-Ting Wu, Shun-Chien Cheng, I-Ming Jou
PURPOSE: To determine susceptibility to decompression surgery in diabetic and nondiabetic peripheral neuropathy using a chronic compression neuropathy model. MATERIALS AND METHODS: Twenty-four streptozotocin-induced diabetic rats were randomly divided into three groups: group I, chronic compression of the left sciatic nerve for 4 weeks with decompression; group II, similar without decompression; and group III, sham exposing the sciatic nerve only. The other 24 nondiabetic rats were assigned to groups IV-VI, which received compression-decompression, compression, and the sham operation, respectively...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28323720/neuroprognostication-after-cardiac-arrest-in-the-light-of-targeted-temperature-management
#19
Mauro Oddo, Hans Friberg
PURPOSE OF REVIEW: Delayed awakening after targeted temperature management (TTM) and sedation is frequent among cardiac arrest patients. Differentiating between prolonged coma and irreversible cerebral damage can be challenging, therefore the utilization of a multimodal approach is recommended by international guidelines. Here, we discuss indications and advantages/disadvantages of available modalities for coma prognostication and describe new tools to improve our accuracy for outcome prediction...
June 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28302459/no-modulatory-effects-by-transcranial-static-magnetic-field-stimulation-of-human-motor-and-somatosensory-cortex
#20
Marco Kufner, Sabrina Brückner, Thomas Kammer
BACKGROUND: Recently, it was reported that the application of a static magnetic field by placing a strong permanent magnet over the scalp for 10 min led to an inhibition of motor cortex excitability for at least 6 min after removing the magnet. When placing the magnet over the somatosensory cortex, a similar inhibitory after effect could be observed as well. OBJECTIVE: Our aim was to replicate the inhibitory effects of transcranial static magnetic field stimulation in the motor and somatosensory system...
May 2017: Brain Stimulation
keyword
keyword
5122
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"