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https://www.readbyqxmd.com/read/29143179/diagnostic-work-up-in-steroid-myopathy
#1
REVIEW
Marco Alessandro Minetto, Valentina D'Angelo, Emanuela Arvat, Santosh Kesari
INTRODUCTION: Steroid myopathy is a well-known sign of endogenous Cushing's syndrome as well as a side effect of glucocorticoid administration. The clinical finding of muscle weakness and the clinical inspection of the muscle size are the most commonly used diagnostic tools, sometimes in combination with needle electromyography, but there are no means to detect the myopathy before the appearance of clinical or electrodiagnostic signs. Until now, no guidelines have been produced for a disease-specific evaluation of muscle impairment in patients with Cushing's syndrome...
November 15, 2017: Endocrine
https://www.readbyqxmd.com/read/29141825/radiculopathy-in-neuromyelitis-optica-how-does-anti-aqp4-ab-involve-pns
#2
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/29137918/spinobulbar-muscular-atrophy-combined-with-atypical-hereditary-neuropathy-with-liability-to-pressure-palsy
#3
Kyomin Choi, So Hyun Ahn, Seol-Hee Baek, Jun-Soon Kim, Seok-Jin Choi, Je-Young Shin, Sung-Min Kim, Yoon-Ho Hong, Jung-Joon Sung
Spinobulbar muscular atrophy (SBMA) is an X-linked recessive disease, presenting motor weakness and wasting of facial, bulbar and limb muscles. Hereditary neuropathy with liability to pressure palsy (HNPP) is autosomal dominant disorder characterized by recurrent neuropathies at common entrapment sites. We report a case of co-existence of SBMA and atypical HNPP with genetic confirmation of CAG expansion in the androgen receptor (AR) gene and deletion of the peripheral myelin protein 22 (PMP22) gene. A 62-year-old man presented with progressive muscle weakness, fasciculations in upper and lower limbs and dysesthesia predominantly in the distal regions...
November 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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
#4
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/29131277/communications-of-the-median-nerve-in-fetuses
#5
Alev Bobuş Kara, Özlem Elvan, Nail Can Öztürk, Ahmet Hakan Öztürk
BACKGROUND: Communications between the median, ulnar and musculocutaneous nerves in the arm, forearm and hand were reported in adult cadaveric and electrophysiological studies. These communicant branches may lead conflicting clinical and electrodiagnostic outcomes. While there are many studies on adult patients or cadavers, there is poor regarding fetuses. The present study was conducted to examine the frequencies of these communications and their coexistences in human fetuses. MATERIALS AND METHODS: Anterior aspect of the forearms of 50 fetuses (29 females, 20 males, and 1 unknown) were dissected bilaterally (totally 100 sides) for this purpose...
November 13, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29124054/a-method-for-the-analysis-of-ap-foot-convexity-insights-into-smooth-muscle-biophysics
#6
Shailesh Appukuttan, Mithun Padmakumar, Keith L Brain, Rohit Manchanda
Action potential (AP) profiles vary based on the cell type, with cells of the same type typically producing APs with similar shapes. But in certain syncytial tissues, such as the smooth muscle of the urinary bladder wall, even a single cell is known to exhibit APs with diverse profiles. The origin of this diversity is not currently understood, but is often attributed to factors such as syncytial interactions and the spatial distribution of parasympathetic nerve terminals. Thus, the profile of an action potential is determined by the inherent properties of the cell and influenced by its biophysical environment...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29123420/concurrent-musculoskeletal-and-soft-tissue-pain-in-the-upper-extremity-can-affect-the-treatment-and-prognosis-of-carpal-tunnel-syndrome-redefining-a-common-condition
#7
Reynaldo P Lazaro, Thomas S Eagan
Objective: To demonstrate the importance of recognizing and separating nonmedian nerve-related symptoms from those related to median nerve compression at the carpal tunnel. Methods: The records of 80 patients, aged 31-82 years (39 males and 41 females), who had undergone median nerve decompression using open and endoscopic release surgery, were reviewed. Peripheral electrodiagnostic studies were performed in all patients prior to surgery. Those whose nonmedian nerve-related symptoms, also known as musculoskeletal and soft tissue pain and tenderness, persisted postoperatively, were referred to another electrodiagnostic study to reassess the median nerve function at the carpal tunnel...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29122298/evoked-potential-and-eeg-study-of-the-neurotoxicity-of-hydramethylnon-in-rats
#8
George M Strain
The objective of the study was to assess the neurotoxicity, using electrodiagnostic tests, of hydramethylnon (Amdro, AC 217,300), an insecticide marketed for the treatment of red imported fire ants, cockroaches, and other insects. Animals were male Fisher 344 albino rats and Long-Evans hooded rats. Brainstem auditory, visual, and somatosensory evoked potentials (BAER, VEP, SEP) and electroencephalograms (EEG) were recorded from implanted screw electrodes before and at multiple time points through day 10 after a single oral dose of hydramethylnon (at 50% or 75% of the LD50) plus vehicle, or vehicle alone...
October 31, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29120005/peripheral-neuropathy-due-to-recreational-use-of-nitrous-oxide-presenting-after-an-ankle-sprain-with-foot-drop
#9
Jackson A Middleton, John A Roffers
A 22-year-old man was referred for orthopedic follow-up after an ankle injury. Initial evaluation in urgent care included radiographs with negative findings. After a delayed presentation, a course of functional treatment was recommended. Subsequently, he developed a deep venous thrombosis and pulmonary emboli. He was found to be factor V Leiden deficient and was fully anticoagulated on warfarin. Later reevaluation revealed a steppage gait and foot drop. Electrodiagnostic studies (ie, electromyography and nerve conduction studies) revealed a severe peripheral polyneuropathy...
November 8, 2017: Orthopedics
https://www.readbyqxmd.com/read/29114281/factors-correlated-with-unfavorable-outcome-after-carpal-tunnel-release-surgery
#10
Fakhr Fakhouri, Rana Alnasser Alsukhni, Bashar Altunbi, Zakaria Hawoot, Rasha Dabbagh
Objectives: Carpal tunnel release surgery has excellent results. The aim of this study was to identify which baseline clinical and demographic factors could predict a good outcome from surgery. Understanding the impact of prognostic factors will enable surgeons to indicate surgical intervention better, provide appropriate preoperative counseling, and manage expectations postoperatively. Materials and Methods: A prospective, observational study included 620 carpal tunnel syndrome patients (age 42...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29102992/association-of-psychological-distress-quality-of-life-and-costs-with-carpal-tunnel-syndrome-severity-a-cross-sectional-analysis-of-the-palms-cohort
#11
Christina Jerosch-Herold, Julie Houghton, Julian Blake, Anum Shaikh, Edward Cf Wilson, Lee Shepstone
OBJECTIVES: The Prediciting factors for response to treatment in carpal tunnel syndrome (PALMS) study is designed to identify prognostic factors for outcome from corticosteroid injection and surgical decompression for carpal tunnel syndrome (CTS) and predictors of cost over 2 years. The aim of this paper is to explore the cross-sectional association of baseline patient-reported and clinical severity with anxiety, depression, health-related quality of life and costs of CTS in patients referred to secondary care...
November 3, 2017: BMJ Open
https://www.readbyqxmd.com/read/29075572/reflex-based-grasping-skilled-forelimb-reaching-and-electrodiagnostic-evaluation-for-comprehensive-analysis-of-functional-recovery-the-7-mm-rat-median-nerve-gap-repair-model-revisited
#12
Maria Stößel, Lena Rehra, Kirsten Haastert-Talini
INTRODUCTION: The rat median nerve injury and repair model gets increasingly important for research on novel bioartificial nerve grafts. It allows follow-up evaluation of the recovery of the forepaw functional ability with several sensitive techniques. The reflex-based grasping test, the skilled forelimb reaching staircase test, as well as electrodiagnostic recordings have been described useful in this context. Currently, no standard values exist, however, for comparison or comprehensive correlation of results obtained in each of the three methods after nerve gap repair in adult rats...
October 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29054691/impact-of-critical-illness-polyneuromyopathy-in-rehabilitation-a-prospective-observational-study
#13
Cameron Cunningham, Heather C Finlayson, William R Henderson, Russell J O'Connor, Andrew Travlos
BACKGROUND: Critical illness polyneuromyopathy (CIPNM) increasingly is recognized as a source of disability in patients requiring intensive care unit (ICU) admission. The prevalence and impact of CIPNM on patients in the rehabilitation setting has not been established. OBJECTIVES: To determine the proportion of at-risk rehabilitation inpatients with evidence of CIPNM and the functional sequelae of this disorder. DESIGN: Prospective observational study...
October 18, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29053882/electrodiagnostic-studies-in-the-intensive-care-unit-a-comparison-study-two-decades-later
#14
Ajitesh Ojha, Sasha A Zivkovic, David Lacomis
INTRODUCTION: Since the late 1980s, critical illness myopathy (CIM) and polyneuropathy (CIP) have been increasingly recognized in the intensive care unit (ICU). We explored whether these causes of ICU weakness were now more likely to lead to electrodiagnostic studies (EDX) at our institution than they were 19-20 years earlier. METHODS: We reviewed 100 consecutive ICU patients who underwent EDX from 2009-2015 and compared them to a previously reported study population from 1990-1995...
October 20, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29053880/electrodiagnostic-errors-contribute-to-cidp-misdiagnosis
#15
Jeffrey A Allen, John Ney, Richard A Lewis
INTRODUCTION: Documentation of peripheral nerve demyelination is an important part of the CIDP diagnostic process. METHODS: We performed a retrospective analysis of patients referred with a diagnosis of CIDP who were found to have a different condition. Electrodiagnostic study data and interpretations performed at the time of the initial diagnosis were compared to those obtained during the re-evaluation. RESULTS: Thirty-nine of 86 patients were found to not have CIDP...
October 20, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29041999/electrodiagnostic-and-nerve-ultrasonographic-features-in-upper-limb-spasticity-an-observational-study
#16
A Picelli, S Tamburin, G Berto, E Chemello, Marialuisa Gandolfi, Leopold Saltuari, Andreas Waldner, Nicola Smania
To better understand the effects of spasticity on peripheral nerves, we evaluated the electrodiagnostic and nerve ultrasonographic features of the median and ulnar nerves in adults with upper limb spasticity. Twenty chronic stroke patients with spastic hemiparesis underwent nerve conduction study and nerve ultrasonography of the median and ulnar nerves at both upper limbs. Affected versus unaffected upper limb comparisons showed significant differences in the median and ulnar nerve distal motor latencies, compound muscle action potentials and F-wave minimal latencies...
July 2017: Functional Neurology
https://www.readbyqxmd.com/read/29041021/a-comparison-of-outcomes-of-carpal-tunnel-release-for-carpal-tunnel-syndrome-in-patients-diagnosed-with-and-without-electrophysiological-studies
#17
Piotr Puchalski, Andrzej Zyluk, Zbigniew Szlosser
Records were analysed from the institutional database, including 943 patients (1089 hands) with CTS who were operated on in the authors' department over a period of four years (2012 to 2015). The diagnosis of CTS was made solely on the basis of clinical findings in 551 patients (58 %); 392 patients (42 %) also had electrodiagnostic tests performed, for various reasons. Patients were followed-up at 1 and 6 months with assessments that included the Levine scores, filament tests, grip and pinch strength. No significant differences in Levine scores were found at the 1 and 6 month assessments...
October 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/29034989/neurological-presentations-revealing-acquired-copper-deficiency-diagnosis-features-etiologies-and-evolution-in-seven-patients
#18
Aurélia Poujois, Nouzha Djebrani-Oussedik, Fabienne Ory-Magne, France Woimant
BACKGROUND: acquired copper deficiency (ACD) is a rare condition usually diagnosed from haematological changes. AIMS: characterize the diagnosis features and the evolution of patients with ACD revealed by neurological symptoms. METHODS: clinical, biological and MRI data were prospectively analysed at diagnosis and during follow-up under copper supplementation. RESULTS: seven patients were studied over a 5-year period...
October 16, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/29034645/peripheral-neuropathy-in-multiple-sclerosis-an-electrophysiologic-study-in-iranian-patients
#19
Mohammad Reza Emad, Leila Zeinali, Alireza Nikseresht, Mahshid Naseri, Hajar Karimian
Multiple sclerosis (MS) is the most common cause of disability after trauma in young adults in Northern Hemisphere; it imposes a major burden on the affected young people. A significant association between MS and demyelinating peripheral neuropathy which might be due to common pathogenesis for the central and peripheral nerves demyelination has been reported in several studies. We aimed to assess if there is any peripheral nervous system involvement in a sample of Iranian MS population. Extensive nerve conduction studies (NCS) were conducted in 20 MS patients according to McDonald criteria, and 20 age and gender matched healthy appearing controls...
August 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29032220/electodiagnostic-and-advanced-neuro-imaging-characterization-for-successful-treatment-of-a-spinal-extradural-arachnoid-cyst
#20
Tomoko Tanaka, Raja S Boddepalli, Douglas C Miller, Zongxian Cao, Vivek Sindhwani, Joan R Coates, Raghav Govindarajan, N Scott Litofsky
BACKGROUND: Spinal extradural arachnoid cysts (SEAC) are relatively uncommon. However, several large cysts have presented with spinal cord compression requiring surgical intervention. CASE DESCRIPTION: We report a patient with progressively enlarging SEAC causing worsening right S1 radiculopathy and gastrocnemius muscle atrophy. Electromyography (EMG) and nerve conduction studies (NCS) revealed an S1 motor radiculopathy. Serial magnetic resonance imaging (MRI) findings confirmed enlargement of the small cyst originating from the sacral thecal sac on the right while two smaller cyst on the left remained stable...
October 11, 2017: World Neurosurgery
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