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https://www.readbyqxmd.com/read/29765890/intraoperative-monitoring-of-hypoglossal-nerve-using-hypoglossal-motor-evoked-potential-in-infratentorial-tumor-surgery-a-report-of-two-cases
#1
Seung Yeun Kim, Hyo Won Im, Young-Doo Choi, Keewon Kim, Jin Wook Kim, Yong Hwy Kim, Han Gil Seo
The hypoglossal nerve (CN XII) may be placed at risk during posterior fossa surgeries. The use of intraoperative monitoring (IOM), including the utilization of spontaneous and triggered electromyography (EMG), from tongue muscles innervated by CN XII has been used to reduce these risks. However, there were few reports regarding the intraoperative transcranial motor evoked potential (MEP) of hypoglossal nerve from the tongue muscles. For this reason, we report here two cases of intraoperative hypoglossal MEP monitoring in brain surgery as an indicator of hypoglossal deficits...
April 2018: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29758078/the-provision-of-written-information-and-its-effect-on-levels-of-pain-and-anxiety-during-electrodiagnostic-studies-a-randomised-controlled-trial
#2
Yan Ling Lai, Annemarie Van Heuven, Adeniyi Borire, Tejaswi Kandula, James G Colebatch, Arun V Krishnan, William Huynh
OBJECTIVE: The provision of written information is a low-cost and readily available intervention that has been found to reduce pain and anxiety in a variety of clinical settings. The current study was undertaken to determine if information provision may improve patients' experience during conventional electrodiagnostic studies. METHODS: 128 participants were recruited from a tertiary teaching hospital who were referred for electrodiagnostic studies. They were randomized into 2 groups where the intervention group was provided with written information about the electrodiagnostic testing...
2018: PloS One
https://www.readbyqxmd.com/read/29739451/reflex-erection-in-the-rat-reciprocal-interplay-between-hemodynamic-and-somatic-events
#3
Alexander Andreev-Andrievskiy, Evgeniia Lagereva, Anfisa Popova
BACKGROUND: Penile erection is a complex reflex under spinal control and modulated by the brain. The hemodynamic events under autonomic control and the perineal muscles somatic activity are interconnected during the reflex erection at the spinal level, however if the afferent feedback on the corpus cavernosum pressure during an erection affects the somatic activity (perineal muscles contractions) and vice versa is not known. This study was aimed to test this hypothesis using a rat model...
May 8, 2018: BMC Urology
https://www.readbyqxmd.com/read/29728162/current-trends-in-practices-in-the-treatment-of-pediatric-unilateral-vocal-fold-immobility-a-survey-on-injections-thyroplasty-and-nerve-reinnervation
#4
Sarah Bouhabel, Christopher J Hartnick
INTRODUCTION: The objective of this study was to poll pediatric otolaryngologists with a special interest in pediatric laryngology on their experience with injection medialization laryngoplasty (IML), thyroplasty, and reinnervation procedures in order to reflect on changing clinical practices. METHOD: A 10-items questionnaire was designed to inquire about current management practices in the treatment of symptomatic UVFI. The 59 members of an ASPO pediatric laryngology working group received the anonymous online survey...
June 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29721245/an-infantile-alantoaxial-dislocation-with-patent-foramen-ovale-managed-with-titanium-cabling-and-allogenic-bone-grafts
#5
Seidu A Richard, Zhi Gang Lan, Xiao Yang, Siqing Huang
Atlantoaxial dislocation is a disorder that is characterized with loss of stability of the atlas and axis (C1-C2) with consequential loss of usual articulation. Although this condition is very common, no one has reported a case as young as our patients. We present a 7-month infant with bilateral paralysis of the lower limbs for four (4) months with no history of trauma. Computer tomographic (CT-scan) imaging revealed alantoaxial dislocation with severe cervical spinal cord compression. The odontoid process is displaced outwardly with no bone destruction...
March 22, 2018: Pediatric Reports
https://www.readbyqxmd.com/read/29708578/study-of-transected-sciatic-nerve-repair-by-biodegradable-membrane-and-betamethasone-in-adult-albino-wistar-rats
#6
Mehrnaz Moattari, Homa Kouchesfehani, GholamReza Kaka, Homayoon Sadraie, Majid Naghdi
AIM: One of the major injuries of the nervous system is that of peripheral nerves. Although peripheral nerves show some capacity of regeneration after injury, the extent of regeneration is not remarkable. The present study aimed to evaluate the regeneration of the transected sciatic nerve by membrane and betamethasone in rats. MATERIAL AND METHODS: In this study twenty-eight adult male rats were divided into four equal groups including 1. Control group (Ctrl); 2...
June 9, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29701919/electrophysiological-assessment-of-a-peptide-amphiphile-nanofiber-nerve-graft-for-facial-nerve-repair
#7
Jacqueline J Greene, Mark T McClendon, Nicholas Stephanopoulos, Zaida Álvarez, Samuel I Stupp, Claus-Peter Richter
Facial nerve injury can cause severe long-term physical and psychological morbidity. There are limited repair options for an acutely transected facial nerve not amenable to primary neurorrhaphy. We hypothesize that a peptide amphiphile nanofiber neurograft may provide the nanostructure necessary to guide organized neural regeneration. Five experimental groups were compared, animals with 1) an intact nerve, 2) following resection of a nerve segment, and following resection and immediate repair with either a 3) autograft (using the resected nerve segment), 4) neurograft, or 5) empty conduit...
April 27, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29689591/translational-study-to-standardize-the-safe-use-of-bipolar-forceps-ligasure%C3%A2-sonicision%C3%A2-and-plasmablade%C3%A2-around-the-recurrent-laryngeal-nerve-in-thyroid-surgery
#8
Yishen Zhao, Changlin Li, Tie Wang, Le Zhou, Xiaoli Liu, Jingwei Xin, Shijie Li, Hui Sun, Gianlorenzo Dionigi
PURPOSE: We investigated the function of the recurrent laryngeal nerve (RLN) in a live porcine model during adjacent activation with bipolar forceps (BF), LigaSure™ small jaw (LSJ), Sonicision™ and PlasmaBlade™ (PB) devices. METHODS: Each of the energy-based devices (EBD) was activated for 3 seconds at different power settings at 5, 3, 2, and 1 mm from the RLN. Nerve root function and thermal spread were measured by continuous intraoperative neuromonitoring and infrared thermal imaging...
April 23, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29686816/evaluation-of-the-prognostic-value-of-multimodal-intraoperative-monitoring-in-posterior-fossa-surgery-patients-with-cerebellopontine-angle-tumors
#9
Mohsen Dalvandi, Ali Nazemi Rafie, Alireza Kamali, Alireza Jamshidifard
The aim of this study was to compare the outcomes of four intraoperative monitoring approaches in order to compare their prognostic value in surgical complications of the facial nerve. This quasi-experimental study was conducted on 25 patients with Cerebellopontine Angle (CPA) tumors, who were hospitalized in the Valiasr Hospital, affiliated to the Arak University of Medical Sciences, Arak, Iran. The degree of the facial nerve paralysis was assessed based on the House-Brackmann (HB) facial nerve grading system...
January 12, 2018: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29679107/oligosynaptic-inhibition-mediated-by-group-ia-afferents-from-flexor-digitorum-superficialis-to-wrist-flexors-in-humans
#10
Mitsuhiro Nito, Wataru Hashizume, Manabu Jimenji, Katsuhiko Suzuki, Toshiaki Sato, Hiromi Fujii, Takuji Miyasaka, Masaomi Shindo, Akira Naito
Effects of low-threshold afferents from the flexor digitorum superficialis (FDS) to the flexor carpi radialis (FCR), flexor carpi ulnaris (FCU) and extensor carpi ulnaris (ECU) motoneurons were examined using a post-stimulus time-histogram (PSTH) and electromyogram-averaging (EMG-A) methods in seven healthy human subjects. Electrical conditioning stimulation to the median nerve branch innervating FDS with the intensity immediately below the motor threshold was delivered. In the PSTH study, the stimulation produced a trough (inhibition) in 19/44 (43%) of FCR and 17/41 (41%) of FCU motor units...
April 20, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29675362/selective-dorsal-rhizotomy-current-state-of-practice-and-the-role-of-imaging
#11
REVIEW
David Graham, Kristian Aquilina, Kshitij Mankad, Neil Wimalasundera
Spastic diplegic cerebral palsy (CP) is the most common form of CP. A specific goal-oriented approach, tailored to the child, is essential to management in all forms of CP. Selective dorsal rhizotomy (SDR) is a neurosurgical procedure that permanently reduces lower limb spasticity in children with spastic diplegic CP. The current technique is performed through a single level laminectomy at the level of the conus and, with the aid of intraoperative electromyography (EMG), allows selective division of the afferent lumbosacral nerve roots...
March 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29652303/-respiratory-hypercapnic-hypoxic-training-is-an-effective-component-of-complex-therapy-of-polyneuropathy-in-children-with-diabetes-type-1
#12
K V Smirnov, Yu V Smirnova, V P Kulikov, O M Nazarkina
AIM: To study the effectiveness of respiratory hypercapnic-hypoxic training in complex treatment of neuropathy due to diabetes type 1. MATERIAL AND METHODS: Fifty children, 31 girls and 19 boys, were examined. The inclusion criteria were the presence of polyneuropathy, verified on the basis of clinical data and electromyographic changes. The patients were divided into 2 groups: the main group (n=25, 15 girls and 10 boys, mean age 12.9±1.8 years (M±SD) and the comparison group (n=25, 16 girls and 9 boys, mean age 13...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29628025/focal-myositis-with-neurogenic-atrophy-case-report-and-review-of-the-literature
#13
Diogo Fitas, Ana Monteiro, Fernando Silveira, Lígia Castro, Stirling Carpenter, Goreti Nadais
Focal myositis is a very rare form of inflammatory myopathy, with unknown etiology. We describe a 44-year-old previously healthy man who noticed a painless swelling on his left forearm, following trauma over the left cubital fossa. The swelling grew progressively over 2 years. He had otherwise no weakness complaints. Physical and neurological examinations were otherwise normal. Creatine kinase and aldolase levels were increased (1,009 U/L and 11.9 U/L, respectively); autoimmunity panel was negative. MRI showed diffuse edema and gadolinium enhancement of muscles innervated by the median nerve...
April 9, 2018: Clinical Neuropathology
https://www.readbyqxmd.com/read/29625866/mixed-facial-reanimation-technique-to-treat-paralysis-in-medium-term-cases
#14
Federico Biglioli, Federico Bolognesi, Fabiana Allevi, Dimitri Rabbiosi, Silvia Cupello, Antonino Previtera, Alessandro Lozza, Valeria M A Battista, Claudio Marchetti
Recent facial paralyses, in which fibrillations of the mimetic muscles are still detectable by electromyography (EMG), allow facial reanimation based on giving new neural stimuli to musculature. However, if more time has elapsed, mimetic muscles can undergo irreversible atrophy, and providing a new neural stimulus is simply not effective. In these cases function is provided by transferring free flaps into the face or transposing masticatory muscles to reinstitute major movements, such as eyelid closure and smiling...
March 14, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29605954/development-of-targeted-muscle-reinnervation-model-in-hind-limb-amputated-rats
#15
Rohit Garg, Safak Uygur, Joanna Cwykiel, Maria Siemionow
BACKGROUND:  Targeted muscle reinnervation (TMR) is a novel approach to postamputation neuroma pain; however, this has not been explicitly studied. The purpose of this study was to develop a TMR model in hind limb amputated rats. METHODS:  Ten hind limbs from 5 Sprague Dawley cadaver rats were used. Sciatic nerve, main branches of the sciatic nerve (common peroneal, tibial, sural), motor branches from the sciatic nerve to the biceps femoris and cauda femoris, gluteal nerve and its motor branches to the semimembranosus, and biceps femoris and femoral nerve were dissected to look for consistent nerve anatomy that can be used for TMR in the rat hind limb amputation model...
April 1, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29605618/progressive-myoclonus-epilepsy-without-renal-failure-in-a-chinese-family-with-a-novel-mutation-in-scarb2-gene-and-literature-review
#16
Wo-Tu Tian, Xiao-Li Liu, Yang-Qi Xu, Xiao-Jun Huang, Hai-Yan Zhou, Ying Wang, Hui-Dong Tang, Sheng-Di Chen, Xing-Hua Luan, Li Cao
PURPOSE: To describe the clinical and genetic features of a Chinese progressive myoclonus epilepsy (PME) patient related with SCARB2 mutation without renal impairment and review 27 SCARB2-related PME patients from 11 countries. METHODS: The patient was a 27-year-old man with progressive action myoclonus, ataxia, epilepsy, dysarthria and absence of cognitive deterioration. Renal functional test was normal. Electroencephalography (EEG) showed progressively slowed background activity and sporadic generalized spike-and-wave discharges...
March 14, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29598895/triple-innervation-for-re-animation-of-recent-facial-paralysis
#17
Federico Biglioli, Fabiana Allevi, Dimitri Rabbiosi, Silvia Cupello, Valeria Marinella Augusta Battista, Alberto Maria Saibene, Giacomo Colletti
Recent facial palsies are those in which fibrillations of the mimetic musculature remain detectable by electromyography (EMG). Such fibrillations generally cease 18-24 months after palsy onset. During this period, facial re-animation surgery seeks to supply new neural inputs to the facial nerve. Neural usable sources were divided into qualitative (contralateral facial nerve) and quantitative (hypoglossus and masseteric nerve), depending on the type of stimulus provided. To further improve the extent and quality of facial re-animation, we here describe a new surgical technique featuring triple neural inputs: the use of the masseteric nerve and 30% of the hypoglossus nerve fibres as quantitative sources was associated with the contralateral facial nerve (incorporated via two cross-face nerve grafts) as a qualitative source in order to restore facial movements in 24 consecutive patients...
May 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29587474/evaluation-of-the-possible-neurotoxic-effect-of-the-bone-cement-on-the-facial-nerve-an-experimental-study
#18
Numan Kökten, Oğuz Kadir Eğilmez, M Tayyar Kalcıoğlu, Mustafa Baran, A Işın Doğan Ekici
Objectives: To investigate neurotoxic effect of bone cement (BC) on facial nerve by using electrophysiological and histopathological methods. Methods: This study included 20 male albino Wistar rats, divided into four equal groups. Group A was designed as the control group, while group B was sham group. In the group C, BC solution was dropped onto the facial nerve trunks of rats and washed with physiological saline after 5 seconds. In the group D, BC solution was dropped onto the facial nerve trunks of rats and after allowing 5 minutes to dry, wounds were closed...
March 29, 2018: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29573416/is-cricothyroid-muscle-twitch-predictive-of-the-integrity-of-the-ebsln-in-thyroid-surgery
#19
Eui-Suk Sung, Jae Hyeok Chang, Jia Kim, Wonjae Cha
OBJECTIVE: Cricothyroid (CT) muscle twitch inspection with neurostimulation is a widely accepted method to identify the external branch of the superior laryngeal nerve (EBSLN) and its integrity in thyroid surgery. However, there has been no large-scale research to evaluate the diagnostic values of CT muscle twitch inspection based on postoperative electromyography (EMG) results, which are considered the gold standard. In this study, we aimed to demonstrate the diagnostic value of CT muscle twitch inspection based on postoperative EMG...
March 24, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29569574/improved-muscle-activation-using-proximal-nerve-stimulation-with-subthreshold-current-pulses-at-kilohertz-frequency
#20
Yang Zheng, Xiaogang Hu
Transcutaneous electrical nerve stimulation can help individuals with neurological disorders to regain their motor function by activating muscles externally. However, conventional stimulation technique often induces near-simultaneous recruitment of muscle fibers, leading to twitch forces time-locked to the stimulation.
 Approach: To induce less synchronized activation of finger flexor muscles, we delivered clustered narrower pulses to the proximal segment of the median and ulnar nerves at a carrier frequency of either 10 kHz (with an 80 µs pulse width) or 7...
March 23, 2018: Journal of Neural Engineering
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