Electromyography of the anal sphincter: which muscle to examine?

abstract：INTRODUCTION:Merkel cell carcinoma is a rare cutaneous, aggressive tumor. Although it shares many neuroendocrine features with small cell lung carcinoma, it has only occasionally been reported with paraneoplastic neurological syndromes. METHODS:A healthy 67-year-old man developed acute ataxia, vertigo, and nausea. Sub...

journal_title：Muscle & nerve

authors： Pavolucci L,Giannini G,Giannoccaro MP,Foschini MP,Lang B,Avoni P,Tinuper P,Vincent A,Liguori R

更新日期：2017-11-01 00:00:00

abstract：:Neurotrophic factors are growth factors or cytokines that are inducible polypeptides and permit intercellular communication. An explosion of information about neurotrophic factors is setting the stage for significant advances in neural disease therapy in the next century. The effects of these trophic factors are overl...

journal_title：Muscle & nerve

authors： Mitsumoto H,Tsuzaka K

更新日期：1999-08-01 00:00:00

abstract：:On magnetic resonance (MR) imaging of the brachial plexus increased signal intensity and swelling of the brachial plexus has been found in chronic inflammatory demyelinating polyneuropathy (CIDP). Whether these proximal abnormalities are also present in the distal polyneuropathy associated with monoclonal gammopathy i...

journal_title：Muscle & nerve

authors： Eurelings M,Notermans NC,Franssen H,Van Es HW,Ramos LM,Wokke JH,van den Berg LH

更新日期：2001-10-01 00:00:00

abstract：INTRODUCTION:Chediak-Higashi syndrome (CHS) is a very rare autosomal recessive disorder (gene CHS1/LYST) characterized by partial albinism, recurrent infections, and easy bruising. Survivors develop a constellation of slowly progressive neurological manifestations. METHODS:We describe clinical, laboratory, electrophys...

journal_title：Muscle & nerve

authors： Faber IV,Prota JRM,Martinez ARM,Nucci A,Lopes-Cendes I,Júnior MCF

更新日期：2017-05-01 00:00:00

abstract：INTRODUCTION:Conduction block (CB) has been included in the Rajabally criteria for axonal Guillain-Barré syndrome (GBS). Because the nerve roots may be affected early in GBS, detection of proximal CB by the triple stimulation technique (TST) can be useful. METHODS:We describe TST findings in 2 patients who presented w...

journal_title：Muscle & nerve

authors： Taieb G,Grapperon AM,Duclos Y,Franques J,Labauge P,Renard D,Yuki N,Attarian S

更新日期：2015-12-01 00:00:00

abstract：INTRODUCTION:The neuropathy in patients with neurofibromatosis type 2 (NF2) is difficult to quantify and follow up. In this study we compared 3 methods that may help assess motor axon pathology in NF2 patients. METHODS:Nerve conduction studies in median nerves were supplemented by deriving motor unit number estimates ...

journal_title：Muscle & nerve

authors： Farschtschi S,Gelderblom M,Buschbaum S,Bostock H,Grafe P,Mautner VF

更新日期：2017-03-01 00:00:00

abstract：:The electrical and mechanical properties of paralyzed human thenar muscles were measured in response to supramaximal stimulation of the median nerve in individuals with chronic cervical spinal cord injury. These data were compared to those recorded from control muscles. Spontaneous motor unit activity was common in pa...

journal_title：Muscle & nerve

authors： Thomas CK

更新日期：1997-07-01 00:00:00

abstract：:Electromyographic (EMG) recordings may serve an important role in predicting torque during repetitive activation of paralyzed muscle. We compared the initial M-wave to the subsequent M-waves of the same train under fatigued and recovered conditions in the paralyzed human soleus muscle. Sixteen individuals with chronic...

journal_title：Muscle & nerve

authors： Chang YJ,Shields RK

更新日期：2002-11-01 00:00:00

abstract：:The Moberg Pick-Up Test is a standardized test for assessing hand dexterity. Although reduction of sensation in the hand occurs with aging, the effect of age on a subject's performance of the Moberg Pick-Up Test has not been examined. The primary goal of this study was to examine the impact of aging and, secondarily, ...

journal_title：Muscle & nerve

authors： Amirjani N,Ashworth NL,Gordon T,Edwards DC,Chan KM

更新日期：2007-06-01 00:00:00

abstract：:In median nerve lesions of the hand, electrophysiologic evaluation of the second lumbrical muscle can help to differentiate between lesions of the common digital nerves and the proper digital nerves, as illustrated by this case report. Median nerve conduction studies to the second lumbrical muscle can be performed by ...

journal_title：Muscle & nerve

authors： Busis NA,Logigian EL,Shahani BT

更新日期：1986-03-01 00:00:00

abstract：:The F-wave was used to estimate motor nerve conduction velocity (MNCV) along the proximal segment of the fastest axons of the deep peroneal nerve (anterior-horn cells to knee) in 13 patients with amyotrophic lateral sclerosis (ALS) and in 21 age- and sex-matched control subjects. Measurements were based on the shortes...

journal_title：Muscle & nerve

authors： Argyropoulos CJ,Panayiotopoulos CP,Scarpalezos S

更新日期：1978-11-01 00:00:00

abstract：:Although the molecular defect causing Becker muscular dystrophy (BMD) has been identified, the biochemical mechanisms that lead to muscle necrosis remain unclear. Exercise-related muscle metabolism in 9 mildly affected BMD patients was assessed by muscle 31-phosphorus magnetic resonance spectroscopy ((31)P MRS) during...

journal_title：Muscle & nerve

authors： Tosetti M,Linsalata S,Battini R,Volpi L,Cini C,Presciutti O,Muntoni F,Cioni G,Siciliano G

更新日期：2011-11-01 00:00:00

abstract：INTRODUCTION:Documentation of peripheral nerve demyelination is an important part of the chronic inflammatory demyelinating polyneuropathy (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. Electrodiagnost...

journal_title：Muscle & nerve

authors： Allen JA,Ney J,Lewis RA

更新日期：2018-04-01 00:00:00

abstract：:Many patients with the limb-girdle variant of congenital myasthenic syndrome (CMS) possess mutations in the human Dok-7 gene (DOK7). We identified six unrelated CMS patients with DOK7 mutations. Two patients, one mildly and the other moderately affected, were homozygous for the previously described 1263insC mutation. ...

journal_title：Muscle & nerve

authors： Anderson JA,Ng JJ,Bowe C,McDonald C,Richman DP,Wollmann RL,Maselli RA

更新日期：2008-04-01 00:00:00

abstract：INTRODUCTION:A randomized trial demonstrated benefit from thymectomy in nonthymomatous acetylcholine receptor (AChR)-antibody positive myasthenia gravis (MG). Uncontrolled observational and histologic studies suggest thymectomy may not be efficacious in anti-muscle-specific kinase (MuSK)-MG. METHODS:The therapeutic im...

journal_title：Muscle & nerve

authors： Clifford KM,Hobson-Webb LD,Benatar M,Burns TM,Barnett C,Silvestri NJ,Howard JF Jr,Visser A,Crum BA,Nowak R,Beekman R,Kumar A,Ruzhansky K,Chen IA,Pulley MT,Laboy SM,Fellman MA,Howard DB,Kolb NA,Greene SM,Pasnoor M

更新日期：2019-04-01 00:00:00

abstract：:The goal of this study was to examine the effects of altered thyroid state and denervation (Den) on skeletal myosin heavy chain (MHC) expression in the plantaris and soleus muscles. Rats were subjected to unilateral denervation (Den) and randomly assigned to one of three groups: (1) euthyroid; (2) hyperthyroid; (3) an...

journal_title：Muscle & nerve

authors： Haddad F,Arnold C,Zeng M,Baldwin K

更新日期：1997-12-01 00:00:00

abstract：:Because of their central role in muscle development and maintenance, MEF2 family members represent excellent candidate effectors of the muscle pathology in myotonic dystrophy (DM). We investigated the expression and alternative splicing of all four MEF2 genes in muscle from neuromuscular disorder (NMD) patients, inclu...

journal_title：Muscle & nerve

authors： Bachinski LL,Sirito M,Böhme M,Baggerly KA,Udd B,Krahe R

更新日期：2010-12-01 00:00:00

abstract：:Body components were measured noninvasively in patients with neuromuscular disease by using dual-energy X-ray absorptiometry (DXA), capable of separately analyzing fat, bone, and muscle content. In all patients with muscle atrophy of myogenic or neurogenic origin, muscle mass was markedly reduced. Although all three c...

journal_title：Muscle & nerve

authors： Kanda F,Fujii Y,Takahashi K,Fujita T

更新日期：1994-04-01 00:00:00

abstract：INTRODUCTION:Polyneuropathy signs (Neuropathy Impairment Score, NIS), neurophysiologic tests (m+7Ionis ), disability, and health scores were assessed in baseline evaluations of 100 patients entered into an oligonucleotide familial amyloidotic polyneuropathy (FAP) trial. METHODS:We assessed: (1) Proficiency of grading ...

journal_title：Muscle & nerve

authors： Dyck PJ,Kincaid JC,Dyck PJB,Chaudhry V,Goyal NA,Alves C,Salhi H,Wiesman JF,Labeyrie C,Robinson-Papp J,Cardoso M,Laura M,Ruzhansky K,Cortese A,Brannagan TH 3rd,Khoury J,Khella S,Waddington-Cruz M,Ferreira J,Wang AK,

更新日期：2017-11-01 00:00:00

abstract：INTRODUCTION:Magnetic resonance imaging (MRI) is an excellent imaging modality for soft tissues. Magnetization transfer (MT) imaging is an MRI technique that is sensitive to the bound protons of macromolecules and therefore can aid in the assessment of nerve damage. METHODS:Measurements of the MT ratio (MTR), which pr...

journal_title：Muscle & nerve

authors： Gambarota G,Krueger G,Theumann N,Mekle R

更新日期：2012-01-01 00:00:00

abstract：:This longitudinal study of 194 patients with sporadic ALS demonstrated that it is possible for physicians to predict the approximate survival time for an individual ALS patient given: (1) the age of the patient, (2) the duration of his weakness and (3) an estimate of his clinical disability (ALS Score). This informati...

journal_title：Muscle & nerve

authors： Jablecki CK,Berry C,Leach J

更新日期：1989-10-01 00:00:00

abstract：:Case reports and open-label studies suggest that coenzyme Q(10) (CoQ(10)) treatment may have beneficial effects in mitochondrial disease patients; however, controlled trials are warranted to clinically prove its effectiveness. Thirty patients with mitochondrial cytopathy received 1200 mg/day CoQ(10) for 60 days in a r...

journal_title：Muscle & nerve

authors： Glover EI,Martin J,Maher A,Thornhill RE,Moran GR,Tarnopolsky MA

更新日期：2010-11-01 00:00:00

abstract：:Intramuscular injection of botulinum toxin A is used to treat focal dystonias. Because immunoresistance has been documented in some patients, other molecular forms of the toxin have been evaluated clinically. The present investigation compared the time course and extent of neuromuscular blockade and recovery of botuli...

journal_title：Muscle & nerve

authors： Billante CR,Zealear DL,Billante M,Reyes JH,Sant'Anna G,Rodriguez R,Stone RE Jr

更新日期：2002-09-01 00:00:00

abstract：:Changes in contractile rate of force development (RFD), measured within a short time interval from contraction initiation, were measured after a period of strength training that led to increases in muscle fascicle length but no measurable change in neuromuscular activity. The relationship between training-induced shif...

journal_title：Muscle & nerve

authors： Blazevich AJ,Cannavan D,Horne S,Coleman DR,Aagaard P

更新日期：2009-04-01 00:00:00

abstract：:Immunologic syndromes are associated with hepatitis B viral (HBV) infection. However, mononeuropathy multiplex (MM), a syndrome in which immune factors may play a role, is rare in acute HBV infection. Few cases of MM associated with HBV infection have been reported. We report a case of acute HBV infection in which MM ...

journal_title：Muscle & nerve

authors： Cohen JA,Wilborn SL,Rector WG Jr,Golitz LE

更新日期：1990-03-01 00:00:00

abstract：:The purpose of this study was to establish normal values of muscle thickness, ratio of muscle thickness to subcutaneous fat thickness, and muscle echo intensity in children between 11 weeks and 16 years of age. Transverse scans of four muscles were made by standardized real-time ultrasound examination. The scans were ...

journal_title：Muscle & nerve

authors： Scholten RR,Pillen S,Verrips A,Zwarts MJ

更新日期：2003-06-01 00:00:00

abstract：:Large muscle genes are often sequenced using complementary DNA (cDNA) made from muscle messenger RNA (mRNA) to reduce the cost and workload associated with sequencing from genomic DNA. Two potential barriers are the availability of a frozen muscle biopsy, and difficulties in detecting nonsense mutations due to nonsens...

journal_title：Muscle & nerve

authors： Waddell LB,Monnier N,Cooper ST,North KN,Clarke NF

更新日期：2011-08-01 00:00:00

abstract：:Influenza vaccination has been associated with adverse events including Guillain-Barré syndrome. Because the safety of influenza vaccination in patients with myasthenia gravis (MG) has not been established, some clinicians discourage vaccination for these patients. We explored whether the administration of influenza v...

journal_title：Muscle & nerve

authors： Zinman L,Thoma J,Kwong JC,Kopp A,Stukel TA,Juurlink DN

更新日期：2009-12-01 00:00:00

abstract：:Action potentials of rabbit masseter motor units (n = 42) were registered at different jaw angles to examine whether the shape of the action potential is related to length of muscle fibers in motor units and depends on the intramuscular location of the motor unit. Twitches were elicited by stimulating motoneurons in t...

journal_title：Muscle & nerve

authors： Turkawski SJ,van Eijden TM

更新日期：2001-11-01 00:00:00

abstract：INTRODUCTION:Transitioning from adolescence to adulthood can be problematic for individuals with rare disabilities such as muscular dystrophy (MD). METHODS:We identified a cohort of 220 individuals with MD and 440 matched comparison individuals and measured emergency room (ER) and inpatient (IP) encounters for the yea...

journal_title：Muscle & nerve

authors： Mann JR,Royer JA,Mcdermott S,Hardin JW,Ozturk O,Street N

更新日期：2015-11-01 00:00:00