keyword
MENU ▼
Read by QxMD icon Read
search

electrodiagnostics

keyword
https://www.readbyqxmd.com/read/28221306/whole-exome-sequencing-identifies-atypical-welander-distal-myopathy-in-patient
#1
Jennifer Gass, Patrick Blackburn, Jessica Jackson, Kimberly Harris, Duygu Selcen, Elliot Dimberg, Paldeep Atwal
Welander distal myopathy is a rare autosomal dominant disorder characterized by muscle weakness in the hands and feet. Exome sequencing of affected families discovered a segregating p.Glu384Lys pathogenic variant in TIA-1 as the main genetic cause of Welander distal myopathy. TIA-1 encodes an RNA-binding protein which serves as a key component of stress granules. This protein also regulates splicing and translation of mRNA. Our patient developed progressive weakness in his hands and feet during his late 40s that was misdiagnosed as a neuropathy that caused muscle atrophy...
March 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28221301/electrodiagnostic-characterization-of-hereditary-neuropathy-with-liability-to-pressure-palsies
#2
Sachiko Takahashi, Marvin Chum, Kurt Kimpinski
OBJECTIVES: The study objective was electrodiagnostic characterization of a large cohort of patients with genetically confirmed hereditary neuropathy with liability to pressure palsies (HNPP). METHODS: A retrospective review was conducted on all patients with HNPP seen at the neuromuscular clinic (London, Canada) from 1977 to 2015. Clinical data obtained included patient characteristics, examination findings, and nerve conduction study results. RESULTS: A total of 46 patients were analyzed...
March 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28209312/is-carpal-tunnel-syndrome-present-in-acute-stroke-patients-an-investigative-study-using-clinical-and-imaging-screening-tools
#3
Chen Lin, Aaron I Loochtan, Brian Dresser, Jianhong Chang, Alfredo E Farjat, Kingshuk Choudhury, Lisa D Hobson-Webb
Carpal tunnel syndrome (CTS) is known to develop post-stroke. Median nerve ultrasound (US) is an inexpensive, effective means of screening. In this prospective feasibility study, we compared the ability of the physical exam, the Boston Carpal Tunnel Questionnaire (BCTQ) and median nerve US to screen for carpal tunnel syndrome (CTS) within 72hours of stroke onset. We enrolled 24 consecutive patients. Using US, 19 (79%, p=0.0386) of the 24 patients screened positive for CTS on the paretic side and 20 (83%, p=0...
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28207399/motor-unit-potential-jitter-a-new-measure-of-neuromuscular-transmission-instability
#4
Meena AbdelMaseeh, Daniel Stashuk
OBJECTIVE: A new measure of neuromuscular transmission instability, motor unit potential (MUP) jitter, is introduced. MUP jitter can be estimated quickly using motor unit potential trains (MUPTs) extracted from electromyographic (EMG) signals acquired using conventional clinical equipment and needle EMG electrodiagnostic protocols. The primary motivation for developing MUP jitter is to avoid the technical demands associated with estimating jitter using conventional single fibre EMG techniques...
February 9, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28181271/extrapolated-reference-values-e-ref-theory-algorithm-and-results-in-patients-control-subjects
#5
Sanjeev D Nandedkar, Donald B Sanders, Lisa D Hobson-Webb, Santoshi Billlakota, Paul E Barkhaus, Erik V Stålberg
INTRODUCTION: Reference values (RVs) are required to separate normal from abnormal values obtained in electrodiagnostic (EDX) testing. However, it is frequently impractical to perform studies on control subjects to obtain RVs. The Extrapolated Reference Values (E-Ref) procedure extracts RVs from data obtained during clinically indicated EDX testing. We compared the E-Ref results with established RVs in several sets of EDX data. METHODS: The mathematical basis for E-Ref was explored to develop an algorithm for the E-Ref procedure...
February 9, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28166937/diagnostics-and-ancillary-tests-of-neurologic-dysfunction-in-the-ruminant
#6
REVIEW
Dusty W Nagy
A variety of diagnostic tests can be used to help further characterize and diagnose neurologic disease in ruminant species. Cerebrospinal fluid is easily collected, and analysis can help in defining the broad category of disease. Diagnostic imaging, including radiography, myelography, ultrasonography, computed tomography, and MRI, have all been used to varying degrees in ruminants. Advanced cross-sectional imaging techniques have the capacity to aid greatly in diagnosis, but their cost can often be prohibitive...
March 2017: Veterinary Clinics of North America. Food Animal Practice
https://www.readbyqxmd.com/read/28164329/charcot-marie-tooth-disease-type-1c-clinical-and-electrophysiological-findings-for-the-c-334g-a-p-gly112ser-litaf-simple-mutation
#7
Nivedita U Jerath, Michael E Shy
INTRODUCTION: Charcot-Marie-Tooth Disease type 1 C (CMT1C) is a rare, dominantly inherited neuropathy caused by mutations in the lipopolysaccharide-induced tumor necrosis factor (LITAF) or small integral membrane protein of the lysosome/late endosome (SIMPLE) gene. METHODS: We present a case series comprised of 10 patients in whom CMT1C is caused by a Gly112Ser substitution in the encoded protein. We focus on clinical presentation, electrodiagnostic analyses, and our findings in the context of previously described cases...
February 6, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28153376/predictors-of-postoperative-outcomes-of-cubital-tunnel-syndrome-treatments-using-multiple-logistic-regression-analysis
#8
Taku Suzuki, Takuji Iwamoto, Kanae Shizu, Katsuji Suzuki, Harumoto Yamada, Kazuki Sato
BACKGROUND: This retrospective study was designed to investigate prognostic factors for postoperative outcomes for cubital tunnel syndrome (CubTS) using multiple logistic regression analysis with a large number of patients. METHODS: Eighty-three patients with CubTS who underwent surgeries were enrolled. The following potential prognostic factors for disease severity were selected according to previous reports: sex, age, type of surgery, disease duration, body mass index, cervical lesion, presence of diabetes mellitus, Workers' Compensation status, preoperative severity, and preoperative electrodiagnostic testing...
January 30, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28149223/successful-nerve-transfers-for-traumatic-brachial-plexus-palsy-in-a-septuagenarian-a-case-report
#9
Parker H Johnsen, Scott W Wolfe
Background: Conventional wisdom and the available literature demonstrate compromised outcomes following nerve reconstruction for traumatic brachial plexus palsy in the elderly. We present a 74-year-old male who was reconstructed with multiple nerve transfers for brachial plexus palsy after a ski accident. Methods: Triceps to axillary nerve transfer, spinal accessory to suprascapular nerve transfer, and ulnar to musculocutaneous nerve transfer were performed 16 weeks post injury. Results: At 11 years post-op, the patient could abduct to 65° and forward flex at M4 strength, limited only by painful glenohumeral arthritis...
December 2016: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28123430/hla-class-ii-alleles-and-risk-for-peripheral-neuropathy-in-type-2-diabetes-patients
#10
Ahmad Marzban, Javad Kiani, Mehrdad Hajilooi, Hamzeh Rezaei, Zohreh Kahramfar, Ghasem Solgi
The potential impact of human leukocyte antigen (HLA) genotype variations on development of diabetic peripheral neuropathy (DPN) is not well determined. This study aimed to identify the association of HLA class II alleles with DPN in type 2 diabetes (T2D) patients. Totally 106 T2D patients, 49 with DPN and 57 without DPN, and 100 ethnic-matched healthy controls were analyzed. Both groups of the patients were matched based on sex, age, body mass index (BMI) and duration of T2D. Polyneuropathy was diagnosed using electrodiagnostic methods...
November 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/28119836/diagnostic-cutoff-value-for-ultrasonography-of-the-common-fibular-neuropathy-at-the-fibular-head
#11
Ji Yeon Kim, Seojin Song, Hye Jung Park, Won Ihl Rhee, Sun Jae Won
OBJECTIVE: To establish the diagnostic cutoff value of ultrasonographic measurement for common fibular neuropathy (CFN) at the fibular head (FH). METHODS: Twenty patients with electrodiagnostically diagnosed CFN at the FH and 30 healthy controls were included in the study. The cross-sectional area (CSA) of sciatic nerve at mid-thigh level, common fibular nerve at popliteal fossa (PF), and common fibular (CF) nerve at FH were measured. Additionally, the difference of CF nerve CSA at the FH between symptomatic side and asymptomatic side (ΔSx-Asx), the ratio of CF nerve CSA at FH to at PF (FH/PF), and the ratio of CF nerve CSA at the FH symptomatic side to asymptomatic side (Ratio Sx-Asx) were calculated...
December 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28119835/quantitative-muscle-ultrasonography-in-carpal-tunnel-syndrome
#12
Hyewon Lee, Sungju Jee, Soo Ho Park, Seung-Chan Ahn, Juneho Im, Min Kyun Sohn
OBJECTIVE: To assess the reliability of quantitative muscle ultrasonography (US) in healthy subjects and to evaluate the correlation between quantitative muscle US findings and electrodiagnostic study results in patients with carpal tunnel syndrome (CTS). The clinical significance of quantitative muscle US in CTS was also assessed. METHODS: Twenty patients with CTS and 20 age-matched healthy volunteers were recruited. All control and CTS subjects underwent a bilateral median and ulnar nerve conduction study (NCS) and quantitative muscle US...
December 2016: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28112483/ultrasound-guided-diagnosis-and-injection-of-the-lateral-femoral-cutaneous-nerve-with-an-anatomical-variation
#13
D Palamar, R Terlemez, K Akgun
Meralgia paresthetica (MP) is an entrapment neuropathy of the lateral femoral cutaneous nerve (LFCN). There are many variations in the course of the LFCN. A 55-year-old woman presented with pain and tingling sensations on the anterolateral aspect of her left thigh. Physical examination revealed hypoesthesia of the proximal anterolateral thigh on the left side. During the electrodiagnostic study, sensory nerve action potential of the LFCN could not be obtained on both sides. Through those clinical and electrophysiological findings, we prediagnosed the case as MP and planned to perform diagnostic nerve block...
January 23, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28107852/efficacy-of-topical-chamomile-oil-for-mild-and-moderate-carpal-tunnel-syndrome-a-randomized-double-blind-placebo-controlled-clinical-trial
#14
Mohammad Hashem Hashempur, Mohammad Sadegh Ghasemi, Babak Daneshfard, Parissa Sadat Ghoreishi, Zeinab Nasiri Lari, Kaynoosh Homayouni, Arman Zargaran
OBJECTIVE: To evaluate the efficacy of topical chamomile oil in patients with mild and moderate carpal tunnel syndrome (CTS). METHOD: Eighty six patients with electrodiagnostic criteria of mild and moderate CTS were enrolled in this randomized double-blind placebo-controlled clinical trial and received wrist splint plus topical chamomile oil or placebo for 4 weeks. They were evaluated at the baseline and end of the study regarding functional and symptomatic scores, dynamometry, and electrodiagnostic indexes...
February 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28099278/recurrent-median-nerve-injury-in-a-weight-lifter
#15
Michael A Worobel, Bobby Alexander, Mark Hirsch, Vu Nguyen
Recurrent median neuropathy is an uncommon injury that can be commonly mistaken for other pathological causes. It is important to be aware of the potential causes and symptoms of injury as delay in diagnosis can lead to permanent decrease in hand function and disability. This case is a description of a 33-year-old male patient who previously presented with radicular symptoms and had complete resolution of his pain after a C7 selective nerve root block. Several months after presentation, he developed significant thenar atrophy, localized pain, and weakness associated with weight lifting activities...
February 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28093784/electrodiagnosis-of-reversible-conduction-failure-in-guillain-barr%C3%A3-syndrome
#16
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
OBJECTIVE: We proposed electrodiagnostic criteria for early reversible conduction failure (ERCF) in axonal Guillain-Barré syndrome (GBS) and applied 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) 50% increase in amplitude of distal compound muscle action potentials or sensory nerve action potentials, or ii) resolution of proximal motor conduction block with accompanying decrease in distal latencies or compound muscle action potential duration or increase in conduction velocities...
January 17, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28091439/is-epineurectomy-necessary-in-the-surgical-management-of-carpal-tunnel-syndrome
#17
U Tiftikci, S Serbest
BACKGROUND: In this study, it was aimed to determine whether median nerve epineurectomy is beneficial in the surgical management of carpal tunnel syndrome (CTS). MATERIALS AND METHODS: The study enrolled 72 patients including 34 patients without epineurectomy (Group A) and 38 patients with epineurectomy (Group B). Surgery was performed in patients with severe electrodiagnostic CTS findings, CTS duration >1 year and flattening along with hypervascularization in median nerve...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28089807/ultrasonography-detects-ulnar-nerve-dislocation-despite-normal-electrophysiology-and-magnetic-resonance-imaging
#18
Jared M Pisapia, Zarina S Ali, Eric D Hudgins, Viviane Khoury, Gregory G Heuer, Eric L Zager
BACKGROUND: Dislocation of the ulnar nerve (UN) occurs in a subset of patients with ulnar neuropathy. Electrodiagnostic and magnetic resonance imaging (MRI) studies are performed to support the clinical diagnosis. We report the case of a patient with ulnar neuropathy with normal electrodiagnostic and MRI studies but with ultrasonography (US) showing UN dislocation, which prompted successful treatment by UN submuscular transposition. CASE DESCRIPTION: A healthy 15-year-old female softball player presented with right medial elbow pain and paresthesias of the fourth and fifth digits...
January 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28075090/carpal-tunnel-syndrome-diagnosis-and-management
#19
Jennifer Wipperman, Kyle Goerl
Carpal tunnel syndrome, the most common entrapment neuropathy of the upper extremity, is caused by compression of the median nerve as it travels through the carpal tunnel. Classically, patients with the condition experience pain and paresthesias in the distribution of the median nerve, which includes the palmar aspect of the thumb, index and middle fingers, and radial half of the ring finger. Additional clues include positive physical examination findings, such as the flick sign, Phalen maneuver, and median nerve compression test...
December 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/28060387/reversible-median-nerve-impairment-after-three-weeks-of-repetitive-work
#20
Sorosh Tabatabaeifar, Susanne Wulff Svendsen, Birger Johnsen, Gert-Åke Hansson, Anders Fuglsang-Frederiksen, Poul Frost
Objectives The aim of this study was to evaluate the development of impaired median nerve function in relation to hand-intensive seasonal work. We hypothesized that at end-season, median nerve conduction would be impaired and then recover within weeks. Methods Using nerve conduction studies (NCS), we examined median nerve conduction before, during, and after engaging in 22 days of mink skinning. For a subgroup, we used goniometry and surface electromyography to characterize occupational mechanical exposures...
January 6, 2017: Scandinavian Journal of Work, Environment & Health
keyword
keyword
51694
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"