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Electrodiagnosis

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https://www.readbyqxmd.com/read/29141825/radiculopathy-in-neuromyelitis-optica-how-does-anti-aqp4-ab-involve-pns
#1
Seungyeon Kim, Joonghyun Park, Bum Sun Kwon, Jin-Woo Park, Ho Jun Lee, Jin-Ho Choi, Kiyeun Nam
BACKGROUND: Until recently, the peripheral nervous system (PNS) had been known to be spared in multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD). However, some studies of late have reported PNS damage in demyelination diseases of the central nervous system (CNS) such as MS and NMOSD. Although multiple studies have reported characteristics reminiscent of peripheral neuropathy in MS, there have been limited reports in NMOSD. To investigate the incidence and pathology of peripheral neuropathy in NMOSD, we reviewed articles describing such cases including our own case...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29136549/the-spectrum-of-charcot-marie-tooth-disease-due-to-myelin-protein-zero-an-electrodiagnostic-nerve-ultrasound-and-histological-study
#2
Gian Maria Fabrizi, Stefano Tamburin, Tiziana Cavallaro, Ilaria Cabrini, Moreno Ferrarini, Federica Taioli, Francesca Magrinelli, Giampietro Zanette
OBJECTIVE: Nerve ultrasound (US) data on myelin protein zero (MPZ)-related Charcot-Marie-Tooth disease (CMT) are lacking. To offer a comprehensive perspective on MPZ-related CMTs, we combined nerve US with clinics, electrodiagnosis and histopathology. METHODS: We recruited 36 patients (12 MPZ mutations), and correlated nerve US to clinical, electrodiagnostic measures, and sural nerve biopsy. RESULTS: According to motor nerve conduction velocity (MNCV) criteria, nine patients were categorized as "demyelinating" CMT1B, 17 as "axonal" CMT2I/J, and 10 as dominant "intermediate" CMTDID...
October 20, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29078131/neuromuscular-electrophysiological-disorders-and-muscle-atrophy-in-mechanically-ventilated-traumatic-brain-injury-patients-new-insights-from-a-prospective-observational-study
#3
Paulo Eugênio Silva, Vinicius Maldaner, Luciana Vieira, Karina Livino de Carvalho, Hedian Gomes, Priscilla Melo, Nicolas Babault, Gerson Cipriano, Joao Luiz Quagliotti Durigan
PURPOSE: It is unclear whether the muscular changes in mechanically-ventilated traumatic brain injury patients (TBI) are only associated with disuse or additionally to neuromuscular electrophysiological disorders (NED). The correlation between muscle atrophy and NED may affect functional outcomes and rehabilitation programs significantly. MATERIAL AND METHODS: An observational study was performed to investigate the presence of NED and muscle atrophy in TBI patients undergoing mechanical ventilation...
October 19, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29037656/demystifying-shoulder-pain-with-electrodiagnosis-and-musculoskeletal-ultrasound-imaging
#4
EDITORIAL
Dimitrios Kostopoulos, Mohini Rawat
No abstract text is available yet for this article.
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28881588/experimental-study-of-brachial-plexus-and-vessel-compression-evaluation-of-combined-central-and-peripheral-electrodiagnostic-approach
#5
Chaoqun Yang, Jianguang Xu, Jie Chen, Shulin Li, Yu Cao, Yi Zhu, Lei Xu
INTRODUCTION: We sought to investigate the reliability of a new electrodiagnostic method for identifying Electrodiagnosis of Brachial Plexus & Vessel Compression Syndrome (BPVCS) in rats that involves the application of transcranial electrical stimulation motor evoked potentials (TES-MEPs) combined with peripheral nerve stimulation compound muscle action potentials (PNS-CMAPs). RESULTS: The latencies of the TES-MEP and PNS-CMAP were initially elongated in the 8-week group...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28879887/characteristics-of-nerve-conduction-studies-in-carpal-tunnel-syndrome
#6
Parag P Moon, Dilip Maheshwari, Vijay Sardana, Bharat Bhushan, Sankalp Mohan
BACKGROUND: Numerous nerve conduction tests are used for the electrodiagnosis of carpal tunnel syndrome (CTS), with a wide range of sensitivity and specificity reported for each test in clinical studies. AIMS: The purpose of this study was to compare the diagnostic accuracy of various nerve conduction tests and determine the properties of the most accurate test. SETTINGS AND DESIGN: A prospective observational case control study. PATIENTS AND METHODS: Eighty patients with clinically confirmed CTS and 80 asymptomatic healthy controls were included in the study...
September 2017: Neurology India
https://www.readbyqxmd.com/read/28803691/effectiveness-of-lavendula-stoechas-essential-oil-in-treatment-of-mild-to-moderate-carpal-tunnel-syndrome-a-randomized-controlled-trial
#7
Bina Eftekharsadat, Peyman Roomizadeh, Shervin Torabi, Fariba Heshmati-Afshar, Fatemeh Jahanjoo, Arash Babaei-Ghazani
STUDY DESIGN: Randomized controlled trial. INTRODUCTION: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper extremity. To date, no previous study has evaluated the efficacy of topical Lavendula stoechas (Lavender) oil in CTS patients. PURPOSE OF THE STUDY: To investigate the effectiveness of topical Lavender essential oil in pain intensity, isometric pinch strength, electrophysiological features, and functional status of patients with mild to moderate CTS...
August 10, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28710923/diagnostic-utility-of-distal-nerve-conduction-studies-and-sural-near-nerve-needle-recording-in-polyneuropathy
#8
Mustafa Aykut Kural, Páll Karlsson, Kirsten Pugdahl, Baris Isak, Anders Fuglsang-Frederiksen, Hatice Tankisi
OBJECTIVE: The electrodiagnosis of polyneuropathy (PNP) may benefit from examination using near-nerve needle technique (NNT) and from inclusion of distal nerves. This study compared the diagnostic utility of distal nerve conduction studies (NCS) and NNT recording. METHODS: Bilateral NNT and surface recording of the sural nerve and surface recording of the dorsal sural and medial plantar nerves were prospectively done in 91 patients with clinically suspected PNP...
September 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28590289/comparison-of-inching-electrodiagnosis-method-and-ultrasonographic-findings-in-the-determination-of-median-nerve-entrapment-site-in-carpal-tunnel-syndrome
#9
Asma Azadeh, Attiyeh Vasaghi, Reza Jalli, Mohammadreza Emad
OBJECTIVE: The purpose of the study was to evaluate the diagnostic value of both inching method through the electrodiagnostic test and ultrasonographic assay in localizing the site of entrapment in patients with symptoms and signs of carpal tunnel syndrome. DESIGN: Thirty-two hands with confirmed carpal tunnel syndrome through electrodiagnostic test and 30 hands as control group were enrolled. For both groups, sensory and motor latencies by inching technique and cross-sectional area by ultrasonography were measured at the inching points...
June 6, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28552867/an-unusual-case-of-sodium-channel-myotonia-with-transient-weakness-upon-initiating-movements-which-is-characteristic-in-becker-disease
#10
Junpei Yamamoto, Keiichi Hokkoku, Yuki Hatanaka, Shunichi Sakoda, Jun-Hui Yuan, Masahiro Sonoo
We reported a 32-year-old man who was a sporadic case of myotonic syndrome with muscle stiffness or transient weakness of limbs upon initiating movements after rest. On examination, he showed painless myotonia with warm-up phenomenon, Hercules-like hypertrophic musculature and myotonic discharges in EMG. The clinical findings resembled to those of Becker disease rather than Thomsen disease. But electrodiagnosis suggested sodium channel myotonia instead of chloride channelopathy. Genetic testing detected a novel missense mutation (p...
June 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28521265/optimizing-the-electrodiagnostic-accuracy-in-guillain-barr%C3%A3-syndrome-subtypes-criteria-sets-and-sparse-linear-discriminant-analysis
#11
Antonino Uncini, Luigi Ippoliti, Nortina Shahrizaila, Yukari Sekiguchi, Satoshi Kuwabara
OBJECTIVE: To optimize the electrodiagnosis of Guillain-Barré syndrome (GBS) subtypes at first study. METHODS: The reference electrodiagnosis was obtained in 53 demyelinating and 45 axonal GBS patients on the basis of two serial studies and results of anti-ganglioside antibodies assay. We retrospectively employed sparse linear discriminant analysis (LDA), two existing electrodiagnostic criteria sets (Hadden et al., 1998; Rajabally et al., 2015) and one we propose that additionally evaluates duration of motor responses, sural sparing pattern and defines reversible conduction failure (RCF) in motor and sensory nerves at second study...
July 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28423347/experimental-study-of-brachial-plexus-and-vessel-compression-evaluation-of-combined-central-and-peripheral-electrodiagnostic-approach
#12
Chaoqun Yang, Jianguang Xu, Jie Chen, Shulin Li, Yu Cao, Yi Zhu, Lei Xu
INTRODUCTION: We sought to investigate the reliability of a new electrodiagnostic method for identifying Electrodiagnosis of Brachial Plexus & Vessel Compression Syndrome (BPVCS) in rats that involves the application of transcranial electrical stimulation motor evoked potentials (TES-MEPs) combined with peripheral nerve stimulation compound muscle action potentials (PNS-CMAPs). RESULTS: The latencies of the TES-MEP and PNS-CMAP were initially elongated in the 8-week group...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28298847/subjective-symptoms-of-carpal-tunnel-syndrome-correlate-more-with-psychological-factors-than-electrophysiological-severity
#13
Firosh Khan, Abdulkhader Shehna, Sivaramakrishnan Ramesh, Kakkassery Sankaran Sandhya, Reji Paul
AIM: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy and is one of the most common requests for electrodiagnosis. We aimed to note the relationship of subjective symptom severity of CTS, with objective electrophysiological severity and psychological status of patients. PATIENTS AND METHODS: One hundred and forty-four consecutive patients of CTS referred to neurophysiology laboratory of a tertiary care hospital over 1 year were prospectively studied...
January 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28289636/electrophysiologic-and-ultrasonographic-assessment-of-carpal-tunnel-syndrome-in-wheelchair-basketball-athletes
#14
Do Kyun Kim, Beom Suk Kim, Min Je Kim, Ki Hoon Kim, Byung Kyu Park, Dong Hwee Kim
OBJECTIVE: To investigate the contributing factors of carpal tunnel syndrome (CTS), electrodiagnostic and ultrasonographic findings of median nerve, and median nerve change after exercise in wheelchair basketball (WCB) players. METHODS: Fifteen WCB players with manual wheelchairs were enrolled in the study. Medical history of the subjects was taken. Electrodiagnosis and ultrasonography of both median nerves were performed to assess CTS in WCB players. Ultrasonographic median nerves evaluation was conducted after wheelchair propulsion for 20 minutes...
February 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28119834/relationship-between-electrodiagnosis-and-various-ultrasonographic-findings-for-diagnosis-of-carpal-tunnel-syndrome
#15
Kyoung Moo Lee, Hyo Jong Kim
OBJECTIVE: To investigate the relationship between electrodiagnosis and various ultrasonographic findings of carpal tunnel syndrome (CTS) and propose the ultrasonographic standard that has closest consistency with the electrodiagnosis. METHODS: Ultrasonography was performed on 50 female patients (65 cases) previously diagnosed with CTS and 20 normal female volunteers (40 cases). Ultrasonography parameters were as follows: cross-sectional area (CSA) and flattening ratio (FR) of the median nerve at the levels of hamate bone, pisiform bone, and lunate bone; anteroposterior diameter (AP diameter) of the median nerve in the carpal tunnel; wrist to forearm ratio (WFR) of median nerve area at the distal wrist crease and 12 cm proximal to distal wrist crease; and compression ratio (CR) of the median nerve...
December 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28093784/electrodiagnosis-of-reversible-conduction-failure-in-guillain-barr%C3%A3-syndrome
#16
MULTICENTER STUDY
Yee-Cheun Chan, Aubrey M Punzalan-Sotelo, Therimadasamy A Kannan, Nortina Shahrizaila, Thirugnanam Umapathi, Eunice J H Goh, Yuki Fukami, Einar Wilder-Smith, Nobuhiro Yuki
INTRODUCTION: In this study we propose electrodiagnostic criteria for early reversible conduction failure (ERCF) in axonal Guillain-Barré syndrome (GBS) and apply them to a cohort of GBS patients. METHODS: Serial nerve conduction studies (NCS) were retrospectively analyzed in 82 GBS patients from 3 centers. The criteria for the presence of ERCF in a nerve were: (i) a 50% increase in amplitude of distal compound muscle action potentials or sensory nerve action potentials; or (ii) resolution of proximal motor conduction block with an accompanying decrease in distal latencies or compound muscle action potential duration or increase in conduction velocities...
November 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28077485/persistent-anterior-interosseous-nerve-palsy-following-forearm-crutch-use
#17
Peter Macneal, Christopher Robert Crome, Scarlett McNally
A 43-year-old man presented with weakness of the interphalageal joint of his right thumb following the use of forearm crutches. On examination he was unable to oppose his thumb and index finger to form the 'ok' sign. Nerve conduction showed anterior interosseous nerve (AIN) damage along its path to the flexor pollicis longus. The patient was managed conservatively with little clinical improvement seen at 4 months. AIN palsies are very rare and account for <1% of all upper limb lesions. Although AIN palsies resulting from other causes such as surgery and blunt trauma are more common, we report the second case of AIN palsy following crutch use, and the first case in which clinical identification was confirmed using electrodiagnosis...
January 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/27912998/electrodiagnosis-in-cancer-rehabilitation
#18
REVIEW
Christian M Custodio
With numerous advancements in early detection and multimodal therapy, cancer has become a chronic disease. As the number of cancer survivors continues to increase, physiatrists and other neuromuscular disease specialists are more likely to encounter individuals with residual impairments, disabilities, and/or handicaps resulting from cancer or related treatments. The patient with cancer is especially prone to injury directed at the peripheral nervous system at multiple anatomic levels. Electrodiagnosis is an invaluable tool in the evaluation of neuromuscular disorders in this patient population...
February 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/27760069/electrodiagnosis-of-lesions-of-median-and-ulnar-nerve-hand-sensory-branches-a-case-series
#19
Giampietro Zanette, Matteo F Lauriola, Stefano Tamburin
INTRODUCTION: The authors have recently tested a new electrodiagnostic technique for palmar proper digital nerves sensory nerve action potentials in normal controls. Here the authors explored whether it may offer additional information in comparison to mixed nerve wrist stimulation in a series of patients. METHODS: The authors recorded palmar proper digital nerves sensory nerve action potential to selective antidromic webspace stimulation in a group of 19 patients with suspected lesions of median and ulnar nerve hand sensory branches...
October 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/27750406/optimizing-electrodiagnosis-for-guillain-barr%C3%A3-syndrome-clues-from-clinical-practice
#20
Yusuf A Rajabally, Fu Liong Hiew
INTRODUCTION: The most efficient method of performing electrophysiology for Guillain-Barré syndrome (GBS) is unknown. METHODS: We retrospectively analyzed electrophysiological data of 97 consecutive GBS patients from Birmingham, UK (2001-2012), studied ≤ 3 weeks post-onset. RESULTS: The sensitivity of electrophysiology for each GBS subtype was dependent on the upper and lower limb nerves tested. In acute inflammatory demyelinating polyneuropathy (AIDP), abnormalities were predominant in the arms, whereas leg abnormalities predominated in axonal GBS...
May 2017: Muscle & Nerve
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