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https://www.readbyqxmd.com/read/28207955/can-an-injured-nerve-be-used-as-a-donor-nerve-for-distal-nerve-transfer-an-experimental-study-in-rats
#1
Chieh-Han John Tzou, Chuieng-Yi Johnny Lu, Tommy Naj-Jen Chang, David Chwei-Chin Chuang
BACKGROUND: Distal nerve transfer has proven efficacy. The purpose of this study was to investigate if an injured nerve can be used as a donor nerve for transfer, and to determine the threshold of injury. MATERIALS AND METHODS: Rat's left ulnar-nerves in the axilla with different degrees of injury were selected as the donor nerves for transfer, and the musculocutaneous-nerves the target nerves for being re-innervated. Six rats each served as positive and negative controls: Group A, intact ulnar-nerve transfer; and Group E, the ulnar-nerve was cut but no transfer...
February 16, 2017: Microsurgery
https://www.readbyqxmd.com/read/28203464/unilateral-laryngeal-pacing-system-and-its-functional-evaluation
#2
Taiping Zeng, Zhiping Zhang, Weiwei Peng, Fei Zhang, Baker Y Shi, Fangyi Chen
Goal. To establish a reliable instrumental system for synchronized reactivation of a unilaterally paralyzed vocal fold and evaluate its functional feasibility. Methods. Unilateral vocal fold paralysis model was induced by destruction of the left recurrent laryngeal nerve (RLN) in anesthetized dogs. With a micro controller-based electronic system, electromyography (EMG) signals from cricothyroid (CT) muscle on the ipsilateral side were recorded and used to trigger pacing of paralyzed vocalis muscles. The dynamic movement of vocal folds was continuously monitored using an endoscope, and the opening and closing of the glottis were quantified with customized imaging processing software...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28202889/treatment-of-transthyretin-familial-amyloid-polyneuropathy-with-tafamidis-a-case-report
#3
Yoshimichi Miyazaki
INTRODUCTION: Familial amyloid polyneuropathy (FAP) is a rare hereditary disorder caused by mutations in the transthyretin (TTR) gene. Tafamidis is a TTR stabilizer able to prevent TTR tetramer dissociation, and several studies have demonstrated its safety and efficacy at slowing the progression of neuropathy in FAP caused by the TTR Val30Met mutation. However, nerve conduction study (NCS) and electromyography (EMG) results have yet to be reported in relation to FAP progression during tafamidis therapy...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28192259/impact-of-intraoperative-monitoring-during-elective-complex-spinal-fusions-%C3%A2-4-levels-on-30-day-complication-and-readmission-rates-a-single-institutional-study-of-643-adult-spinal-deformity-patients
#4
Aladine A Elsamadicy, Owoicho Adogwa, Emily Lydon, Gireesh Reddy, Rayan Kaakati, Amanda Sergesketter, Oren N Gottfried, Isaac O Karikari
OBJECTIVE: The aim of this study is to determine if there are differences in 30-day postoperative complication and readmission rates between spinal deformity patients undergoing complex spinal fusion with and without intraoperative monitoring. METHODS: The medical records of 643 adult spine deformity patients undergoing elective complex spinal fusion (≥4 levels) at a major academic institution from 2005 to 2015 were reviewed. We identified 122 (19%) cases that involved intraoperative monitoring (IOM) including EMG, SSEP, and/or TcMEP and 521 (81%) that did not (IOM: n=122; No-IOM: n=521)...
February 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28149807/continuous-intraoperative-neural-monitoring-of-the-recurrent-nerves-in-thyroid-surgery-a-quantum-leap-in-technology
#5
REVIEW
Rick Schneider, Gregory W Randolph, Marcin Barczynski, Gianlorenzo Dionigi, Che-Wei Wu, Feng-Yu Chiang, Andreas Machens, Dipti Kamani, Henning Dralle
The continuous intraoperative neural monitoring (CIONM) technique is increasingly acknowledged as a useful tool to recognize impending nerve injury and to abort the related manoeuvre to prevent nerve injury during thyroid surgery. CIONM provides valuable real-time information constantly, which is really useful during complex thyroid surgeries especially in the settings of unusual anatomy. Thus, CIONM overcomes the key methodological limitation inherent in intermittent nerve monitoring (IINOM); which is allowing the nerve to be at risk in between the stimulations...
December 2016: Gland Surgery
https://www.readbyqxmd.com/read/28144954/monitoring-of-the-posterior-cricoarytenoid-muscle-represents-another-option-for-neural-monitoring-during-thyroid-surgery-normative-vagal-and-recurrent-laryngeal-nerve-posterior-cricoarytenoid-muscle-electromyographic-data
#6
Whitney Liddy, Samuel R Barber, Brian M Lin, Dipti Kamani, Natalia Kyriazidis, Bradley Lawson, Gregory W Randolph
OBJECTIVE: Intraoperative neural monitoring (IONM) of laryngeal nerves using electromyography (EMG) is routinely performed using endotracheal tube surface electrodes adjacent to the vocalis muscles. Other laryngeal muscles such as the posterior cricoarytenoid muscle (PCA) are indirectly monitored. The PCA may be directly and reliably monitored through an electrode placed in the postcricoid region. Herein, we describe the method and normative data for IONM using PCA EMG. STUDY DESIGN: Retrospective review...
January 31, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28142325/continuous-intraoperative-neuromonitoring-study-using-pigs-for-the-prevention-of-mechanical-recurrent-laryngeal-nerve-injury-in-esophageal-surgery
#7
Tomoaki Deguchi, Yoshifumi Ikeda, Masanori Niimi, Ryoji Fukushima, Masaki Kitajima
PURPOSES: During esophageal surgery, clamping injury and injury associated with the use of energy devices are common mechanisms underlying intraoperative recurrent laryngeal nerve (RLN) damage. Recently, intraoperative neuromonitoring (IONM) has been applied to prevent RLN injury. This study was aimed at investigating the changes in the EMG signals associated with clamping injury of the RLN caused by picking up of the nerve with tweezers in domestic pigs. METHODS: Six domestic pigs (12 RLNs) underwent continuous IONM (CIONM) by our original automated periodic vagal nerve stimulation method...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28131103/segmental-latissimus-dorsi-free-flap-attempting-to-preserve-function-at-the-donor-site-anatomical-and-clinical-experiences
#8
YiChun Ding, Dong Sheng Cao, XueYing Huang, Juan Xie, HongHong Li
Background The purpose of the present study was to evaluate arm and shoulder function prospectively after transfer of the lateral segment of the latissimus dorsi (LD) muscle. Methods In this study, 20 specimens of LD muscles from 10 cadavers were dissected to determine the relationship between the artery and the nerve. Twenty patients were recruited and functional disability was determined by the Disabilities of Arm, Shoulder, and Hand (DASH), and muscle strength by needle electromyography (EMG) before surgery and at five different time points postoperatively...
January 28, 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28102815/assessment-of-the-characteristics-and-quality-of-life-of-patients-with-uremic-peripheral-neuropathy%C3%A2
#9
Xiu-Zhi Yu, Shi Lu, Wei Gou, Wei Wang, Shui-Hong Zou, Yin-Xia Han, Wei-Wei Wang, Jin-Yuan Zhang
OBJECTIVES: This study seeks to examine the characteristics and health-related quality of life (HRQL) of patients with uremic peripheral neuropathy. METHODS: Uremic patients undergoing maintenance hemodialysis (MHD) at our hospital were enrolled in this study. Data collection began in January 2011 and ended in June 2011. The patients were divided into two groups, the lesion group (110 cases) and the non-lesion group (168 cases), based on the presence or absence of peripheral neuropathy...
January 19, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28099193/the-effect-of-peripheral-nerve-stimulation-on-shoulder-biomechanics-a-randomized-controlled-trial-in-comparison-to-physical-therapy
#10
Richard D Wilson, Jayme S Knutson, Maria E Bennett, John Chae
OBJECTIVE: To establish the effects on shoulder biomechanics from a peripheral nerve stimulation (PNS) treatment compared to physical therapy (PT) in stroke survivors with chronic hemiplegic shoulder pain. DESIGN: Single-site, pilot, randomized controlled trial for adults with chronic shoulder pain after stroke. Participants were randomized to receive a 3-week treatment of single-lead PNS or physical therapy (PT). The outcomes included isometric shoulder abduction strength, pain-free shoulder external rotation range of motion (ROM), delay in initiation and termination of shoulder abduction electromyogram (EMG) activity, and the Fugl-Meyer Motor Assessment (upper extremity section)...
January 17, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28095499/treatment-with-riluzole-restores-normal-control-of-soleus-and-extensor-digitorum-longus-muscles-during-locomotion-in-adult-rats-after-sciatic-nerve-crush-at-birth
#11
Wojciech Zmysłowski, Anna M Cabaj, Urszula Sławińska
The effects of sciatic nerve crush (SNC) and treatment with Riluzole on muscle activity during unrestrained locomotion were identified in an animal model by analysis of the EMG activity recorded from soleus (Sol) and extensor digitorum longus (EDL) muscles of both hindlimbs; in intact rats (IN) and in groups of rats treated for 14 days with saline (S) or Riluzole (R) after right limb nerve crush at the 1st (1S and 1R) or 2nd (2S and 2R) day after birth. Changes in the locomotor pattern of EMG activity were correlated with the numbers of survived motor units (MUs) identified in investigated muscles...
2017: PloS One
https://www.readbyqxmd.com/read/28089323/neurophysiological-monitoring-of-lumbar-spinal-nerve-roots-a-case-report-of-postoperative-deficit-and-literature-review
#12
Yuguang Chen, Baoqing P Wang, Junlin Yang, Yaolong Deng
INTRODUCTION: Intraoperative neurophysiological monitoring (IONM) has proven to help reduce the probability of postoperative neurological deficit for spinal deformity correctional surgeries. However, in rare cases new deficits may still happen. We report a surgical case in which the patient had postoperative paralysis. We would like to call for more case reports with postoperative neurological deficits as they present difficult clinical cases. PRESENTATION OF CASE: A 61-year-old male patient with severe thoracolumbar kyphoscoliosis underwent posterior spinal correction and fusion with segmental T10-L5 pedicle screws and rods instrumentation with IONM...
November 19, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28078360/multimodal-nerve-monitoring-during-periacetabular-osteotomy-identifies-surgical-steps-associated-with-risk-of-injury
#13
Eduardo N Novais, Travis Heare, Lauryn Kestel, Patricia Oliver, Willy Boucharel, Jason Koerner, Kim Strupp
PURPOSE: Sciatic nerve palsy after periacetabular osteotomy (PAO) is a serious complication. The purpose of this study was to determine whether a multimodal sciatic monitoring technique allows for identification of surgical steps that place the sciatic nerve at risk. METHODS: Transcranial electrical motor evoked potentials (TcMEPs), somatosensory evoked potentials (SSEPs), and spontaneous electromyography (EMG) were monitored in a consecutive series of 34 patients (40 hips) who underwent PAO for the treatment of symptomatic hip dysplasia between January 2012 and November 2014...
January 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28077887/examination-of-the-predictive-power-of-electromyography-and-urodynamic-study-in-patients-with-cauda-equina-syndrome-horse-tail-syndrome
#14
Mohammadreza Shahmohammadi, Reza Jalil Khoshuod, Alireza Zali, Amir Saied Seddeghi, Nima Mohseni Kabir
BACKGROUND: Cauda equina syndrome is a rare disorder that causes loss of Lumbar plexus function (nerve roots) lower than conus medullaris. No risk factor has been defined for this disease yet. Due to the high morbidity of Cauda equina syndrome and lack of sufficient information about the connection between the disease and urodynamic findings and EMG (Electromyography) findings, the need for this comprehensive study is felt. OBJECTIVE: The aim is to determine the predictive power of findings resulted from urodynamics and electromyography of perineal region and around sphincter in the clinical cure rate of urination in patients with urinary retention followed by Cauda equina syndrome...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28068938/acupuncture-combined-with-methylcobalamin-for-the-treatment-of-chemotherapy-induced-peripheral-neuropathy-in-patients-with-multiple-myeloma
#15
Xiaoyan Han, Lijuan Wang, Hongfei Shi, Gaofeng Zheng, Jingsong He, Wenjun Wu, Jimin Shi, Guoqing Wei, Weiyan Zheng, Jie Sun, He Huang, Zhen Cai
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) seriously affects the quality of life of patients with multiple myeloma (MM) as well as the response rate to chemotherapy. Acupuncture has a potential role in the treatment of CIPN, but at present there have been no randomized clinical research studies to analyze the effectiveness of acupuncture for the treatment of CIPN, particularly in MM patients. METHODS: The MM patients (104 individuals) who met the inclusion criteria were randomly assigned into a solely methylcobalamin therapy group (500 μg intramuscular methylcobalamin injections every other day for 20 days; ten injections) followed by 2 months of 500 μg oral methylcobalamin administration, three times per day) and an acupuncture combined with methylcobalamin (Met + Acu) group (methylcobalamin used the same way as above accompanied by three cycles of acupuncture)...
January 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28052417/c8-cross-transfer-for-the-treatment-of-caudal-brachial-plexus-avulsion-in-three-dogs
#16
Pierre Moissonnier, Claude Carozzo, Jean-Laurent Thibaut, Catherine Escriou, Antoine Hidalgo, Stéphane Blot
OBJECTIVE: To evaluate the cervical nerve 8 cross-transfer technique (C8CT) as a part of surgical treatment of caudal brachial plexus avulsion (BPA) in the dog. STUDY DESIGN: Case series. ANIMALS: Client-owned dogs suspected to have caudal BPA based on neurological examination and electrophysiological testing (n = 3). METHODS: The distal stump of the surgically transected contralateral C8 ventral branch (donor) was bridged to the proximal stump of the avulsed C8 ventral branch (recipient) and secured with 9-0 polypropylene suture under an operating microscope...
January 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28042994/assessing-neuromuscular-junction-stability-from-stimulated-emg-in-children
#17
Matthew C Pitt, John C Mchugh, Jacquie Deeb, Ralph A Smith
OBJECTIVE: We present our 9-year experience of stimulated EMG potential analysis using concentric electrodes (SPACE) to evaluate neuromuscular junction (NMJ) disorders in awake children. The technique uses high frequency filtration of stimulated motor unit potentials and applies peak detection software to estimate mean consecutive difference (MCD). METHODS: SPACE was carried out in orbicularis oculi of 878 children (377 girls; median age 47months) between 2007 and 2015, stimulating the facial nerve with a monopolar cathode...
February 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28040387/takotsubo-cardiomyopathy-associated-with-miller-fisher-syndrome
#18
Dalvir Gill, Kan Liu
51-year-old female who presented with progressive paresthesia, numbness of the lower extremities, double vision, and trouble walking. Physical exam was remarkable for areflexia, and ptosis. Her initial EKG showed nonspecific ST segment changes and her Troponin T was elevated to 0.41ng/mL which peaked at 0.66ng/mL. Echocardiogram showed a depressed left ventricular ejection fraction to 35% with severely hypokinetic anterior wall and left ventricular apex was severely hypokinetic. EMG nerve conduction study showed severely decreased conduction velocity and prolonged distal latency in all nerves consistent with demyelinating disease...
December 22, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28038479/acute-improvement-in-intraoperative-emg-following-common-fibular-nerve-decompression-in-patients-with-symptomatic-diabetic-sensorimotor-peripheral-neuropathy-1-emg-results
#19
James C Anderson, D Scott Nickerson, Brian L Tracy, Roger J Paxton, Dwayne S Yamasaki
Background and Study Aims Electromyographic (EMG) recordings of the fibularis longus (FL) and tibialis anterior (TA) muscles were performed intraoperatively during common fibular nerve (CFN) nerve decompression (ND) in patients with symptomatic diabetic sensorimotor peripheral neuropathy (DSPN) and clinical nerve compression. Materials and Methods Forty-six legs in 40 patients underwent surgical ND by external neurolysis; FL and TA muscles were monitored intraoperatively. Evoked EMGs were recorded just prior to and within 1 minute after ND...
December 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28035909/comparison-of-the-efficacy-of-lidocaine-and-betamethasone-dipropionate-in-carpal-tunnel-syndrome-injection
#20
Bahar Dernek, Tugba Aydin, Pinar Kursuz Koseoglu, Fatma Nur Kesiktas, Tugba Yesilyurt, Demirhan Diracoglu, Cihan Aksoy
BACKGROUND: Carpal tunnel syndrome (CTS) is a commonly seen peripheral nerve mononeuropathy. Corticosteroid injection within the carpal tunnel is among the conservative treatment options. The exact mechanism of action of steroids is not fully clear; decreased inflammation surrounding nerves or tendons is thought to be the main effect. Lidocaine has been shown to have anti-inflammatory effects on certain cells (monocytes, macrophages, neutrophils etc.). The aim of this study is to evaulate the efficacy of lidocaine treatment as a alternative to corticosteroid treatment in carpal tunnel syndrome...
December 23, 2016: Journal of Back and Musculoskeletal Rehabilitation
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