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Muscle & Nerve

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https://www.readbyqxmd.com/read/28214343/high-resolution-ultrasound-visualization-of-the-deep-branch-of-the-ulnar-nerve
#1
Georg Riegler, Doris Lieba-Samal, Peter C Brugger, Christopher Pivec, Hannes Platzgummer, Martin Vierhapper, Gabriela Muschitz, Suren Jengojan, Gerd Bodner
INTRODUCTION: The value of imaging the deep branch of the ulnar nerve (DBUN) over its entire course has not been clarified. Therefore, this study aimed to evaluate the feasibility of visualizing the DBUN from its origin to the most distal point. METHODS: We performed high-resolution ultrasound (HRUS) with high-frequency probes (18-22MhZ), HRUS-guided ink-marking, and consecutive dissection in 8 fresh cadaver hands. In both hands of 10 healthy volunteers (n=20), the cross-sectional area (CSA) was measured at 2 different locations (R1+R2)...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214342/marked-clinical-and-jitter-improvement-after-eculizumab-in-refractory-myasthenia
#2
Vern C Juel, Donald B Sanders, Lisa D Hobson-Webb, Janice M Massey, Jeffrey T Guptill, Fanny O'Brien, Jing Jing Wang, James F Howard
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214339/turner-syndrome-and-duchenne-muscular-dystrophy
#3
Sumit Verma, Parul Goyal, Charlotte Beam, Durga Shah
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214338/sciatic-neuropathy-due-to-popliteal-fossa-nerve-block
#4
Adam Aubuchon, W David Arnold, Anna Bracewell, J Chad Hoyle
INTRODUCTION: Sciatic neuropathy following popliteal nerve block (PNB) for regional anesthesia is considered uncommon but has been increasingly recognized in the literature. We identified a case of sciatic neuropathy that occurred after bunionectomy during which a PNB had been performed. METHODS: To understand the frequency of PNB-related sciatic neuropathy we performed a retrospective review of sciatic neuropathies at our center over a five year period. RESULTS: Forty-five cases of sciatic neuropathy were reviewed...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214333/early-and-continued-manual-stimulation-is-required-for-long-term-recovery-after-facial-nerve-injury
#5
Maria Grosheva, Svenja Rink, Ramona Jansen, Habib Bendella, Stoyan P Pavlov, Levent Sarikcioglu, Doychin N Angelov, Sarah A Dunlop
INTRODUCTION: We showed previously that manual stimulation (MS) of vibrissal muscles for 2 months after facial nerve injury (FFA) in rats improves whisking and reduces motor endplate poly-innervation. Here, we asked whether discontinuing or delaying MS after FFA would also lead to similar results. METHODS: Rats were subjected to FFA and received MS for: i) 4 months ("early & continued"), ii) the first but not the last 2 months ("discontinued"), or iii) the last 2 months ("delayed")...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214328/abnormal-spontaneous-activity-on-needle-electromyography-in-myasthenia-gravis
#6
Deepa Kannaditharayil, Fabreena Napier, Volkan Granit, Phyllis Bieri, Steven Herskovitz
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214297/advancing-neuromuscular-ultrasound-through-research-finding-common-sound
#7
Lisa Hobson-Webb, Michael S Cartwright
INTRODUCTION: Neuromuscular ultrasound (NMUS) is an accepted, but underutilized, diagnostic tool in the evaluation of neuromuscular disorders. The lack of uniform high-quality standards in published research and in clinical practice has been a limitation to its growth. METHODS: This article aims to address the shortcomings of NMUS research and establish basic standards to guide further work in the field. RESULTS: A review of the basic types of NMUS research papers is presented, along with the elements that each should include...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214295/blood-flow-restriction-increases-metabolic-stress-but-decreases-muscle-activation-during-high-load-resistance-exercise
#8
Emerson L Teixeira, Renato Barroso, Carla Silva-Batista, Gilberto C Laurentino, Jeremy P Loenneke, Hamilton Roschel, Carlos Ugrinowitsch, Valmor Tricoli
INTRODUCTION: We investigated differences in metabolic stress (lactate) and muscle activation (electromyography) when high load exercise is compared to a condition where blood flow restriction (BFR) is applied during the exercise or during the rest interval. METHODS: Twelve participants performed high load resistance exercise with BFR during the intervals (BFR-I), during the set (BFR-S) and without BFR (HL). Each condition consisted of 3 sets of 8 repetitions with knee-extension at 70% of one-repetition-maximum...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214293/ultra-high-frequency-ultrasound-of-fascicles-in-the-median-nerve-at-the-wrist
#9
Michael S Cartwright, Vanessa Baute, James B Caress, Francis O Walker
INTRODUCTION: An ultra high-frequency (70 MHz) ultrasound device has recently been approved for human use. This study was conducted to determine if this device facilitates counting of fascicles within the median nerve at the wrist. METHODS: Twenty healthy volunteers underwent imaging of the median nerve at the wrist bilaterally. The number of fascicles in each nerve was counted by two independent raters. RESULTS: The mean fascicle number was 22...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214292/prescription-profile-of-pyridostigmine-use-in-a-population-of-patients-with-myasthenia-gravis
#10
Jorge Enrique Machado-Alba, Luis Felipe Calvo-Torres, Andrés Gaviria-Mendoza, César Augusto Mejía-Vélez
INTRODUCTION: We determined the pyridostigmine prescription pattern in a population of patients with myasthenia gravis. METHODS: A descriptive cross-sectional study was done using a prescription database of 3.5 million individuals from which patients diagnosed with myasthenia gravis (MG) and for whom pyridostigmine was prescribed. RESULTS: A total of 306 outpatients with MG were found, and 258 were receiving pyridostigmine, mean age, 53.0±18...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214289/bone-health-in-facioscapulohumeral-muscular-dystrophy-a-cross-sectional-study
#11
Hema Chagarlamudi, Alastair Corbett, Marion Stoll, Genila Bibat, Carla Grosmann, Carly Matichak Stock, Nikia Stinson, Jay Shapiro, Kathryn Wagner
INTRODUCTION: We provide a comprehensive overview of bone health in facioscapulohumeral muscular dystrophy (FSHD). METHODS: Ninety-four adult individuals with FSHD1 from two sites were included in this cross-sectional study. Clinical characteristics and determinants of bone health were examined. Relationships between bone mineral density (BMD), strength and function were explored. RESULTS: Nearly a third of subjects were deficient in vitamin D3...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28213938/article-submission-the-scope-of-muscle-nerve
#12
EDITORIAL
Zachary Simmons
No abstract text is available yet for this article.
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28192854/ingestion-of-trp-channel-agonists-attenuates-exercise-induced-muscle-cramps
#13
Daniel H Craighead, Sean W Shank, Jinger S Gottschall, Dennis H Passe, Bob Murray, Lacy M Alexander, W Larry Kenney
: Exercise associated muscle cramping (EAMC) is a poorly understood problem that is neuromuscular in origin. Ingestion of transient receptor potential (TRP) channel agonists has been efficacious in attenuating electrically-induced muscle cramps. PURPOSE: To examine the effect of TRP agonist ingestion on voluntarily-induced EAMC and motor function. METHODS: Study 1: 39 subjects completed 2 trials after ingesting TRP agonist-containing active treatment (A), or vehicle (V) control...
February 13, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28187529/physical-function-and-muscle-strength-in-sporadic-inclusion-body-myositis
#14
Anders N Jørgensen, Per Aagaard, Jakob L Nielsen, Mette Christiansen, Lars G Hvid, Ulrik Frandsen, Louise P Diederichsen
INTRODUCTION: Self-reported physical function, functional capacity, and isolated muscle function were investigated in sporadic inclusion body myositis (sIBM) patients. METHODS: SF-36 health survey and 2-min Walk test (2MWT), Timed Up & Go test (TUG), and 30-sec Chair Stand performance were evaluated. Additionally, patients were tested for knee extensor muscle strength (KinCom) and leg extension power (Nottingham Power Rig). RESULTS: TUG performance was the strongest predictor of self-reported physical function (r(2) =0...
February 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28187528/ultrastructural-changes-in-human-masseter-muscles-after-botulinum-neurotoxin-a-injection
#15
Fushun Ma, Zhaohui Zhai, Shunwen Zhu, Shengjian Tang
INTRODUCTION: Botulinum neurotoxin A (BoNTA) has long been used as a therapeutic agent and has been widely accepted as a cosmetic agent in recent years. It can inhibit function and induce structural changes in skeletal muscle. METHODS: Specimens of fresh dissected human masseter muscle were used to observe the ultrastructural changes that occurred at 6 and 12 months following BoNTA injection. RESULTS: The findings observed were muscle fiber distortion, sarcomere shortening, mitochondrial vacuolar degeneration, glycogen accumulation, and H and M band disruption in the triad of tubules...
February 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28187527/detection-of-fasciculations-in-amyotrophic-lateral-sclerosis-the-optimal-ultrasound-scan-time
#16
Yu-Ichi Noto, Kazumoto Shibuya, Nortina Shahrizaila, William Huynh, José M Matamala, Thanuja Dharmadasa, Matthew C Kiernan
INTRODUCTION: The aim of this study was to elucidate the optimal scan time to detect fasciculations using ultrasound in the diagnosis of amyotrophic lateral sclerosis (ALS). METHODS: The intervals between fasciculations were recorded from tongue, abdominal, and limb muscles in ALS patients, incorporating assessment of the cumulative probability of 2 fasciculations occurring. RESULTS: From prospective studies of 228 muscles from 19 ALS patients, fasciculations were detectable in 68% of patients...
February 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28187523/hyperckemia-and-myalgia-are-a-common-presentation-of-anoctamin-5-ano5-related-myopathy-in-french-patients
#17
Constantinos Papadopoulos, Pascal Laforêt, Juliette Nectoux, Tanya Stojkovic, Karim Wahbi, Robert-Yves Carlier, Pierre G Carlier, Sarah Leonard-Louis, France Leturcq, Norma Romero, Bruno Eymard, Anthony Behin
Introduction Patients with ANO5 mutations may present not only limb-girdle muscular dystrophy type 2L or adult-onset Miyoshi-type myopathy but also with asymptomatic hyperCKemia, exercise intolerance, or rhabdomyolysis. Materials/Methods Data from 38 in France with ANO5 mutations with and without muscle weakness on first examination were compared. Results Twenty patients presented without muscle weakness. Median age at symptom onset or discovery of hyperCKemia was 23 years. Creatine kinase (CK) levels ranged from 200 to 40,000 U/L...
February 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28187499/botulinum-toxin-type-a-btx-a-in-the-treatment-of-facial-myotonia-in-schwartz-jampel-syndrome
#18
Igor Dórea Bandeira, João Gabriel Jagersbacher, Thiago Lima Barretto, Camilo Vieira Santos, Rita Lucena
No abstract text is available yet for this article.
February 10, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28181274/hereditary-myopathies-with-early-respiratory-insufficiency-in-adults
#19
Elie Naddaf, Margherita Milone
INTRODUCTION: Hereditary myopathies with early respiratory insufficiency as a predominant feature of the clinical phenotype are uncommon and underestimated in adults. METHODS: We reviewed the clinical and laboratory data of patients with hereditary myopathies that demonstrated early respiratory insufficiency prior to the need for ambulatory assistance. Only patients with disease-causing mutations or a specific histopathological diagnosis were included. Patients with cardiomyopathy were excluded...
February 9, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28181271/extrapolated-reference-values-e-ref-theory-algorithm-and-results-in-patients-control-subjects
#20
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
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