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12 Possible Causes for Myogenic Changes (EMG), Percussion Myotonia

Did you mean: Myogenic Changes (EMG, Percussion Myotonia

  • Oculo-Pharyngo-Distal Myopathy

    myotonia: delayed relaxation following percussion of the thenar eminence Grip myotonia: delayed relaxation of firm handshake Reflexes depressed Gait: high steppage (foot[evidencereviewed.com] Electromyography (EMG) revealed myogenic changes in nine out of 11 patients, neurogenic changes in one, and normal findings in one patient.[journals.plos.org] It always follows muscle activation (action myotonia), usually voluntary, but may be elicited by mechanical stimulation (percussion myotonia) of the muscle.[clinicalgate.com]

  • Distal Myopathy Type 3

    "Action" or grip myotonia may be seen. However, percussion myotonia is rare. There may be an associated neuropathy.[neuroweb.us] Muscle hypertrophy may be seen Grip and percussion myotonia can be seen Tx : Mexiletene.[sites.google.com] changes, with certain neurogenic features on EMG; and (e) rimmed vacuoles without obvious dystrophy on histopathology.[neuroweb.us]

  • Polyglucosan Body Myopathy Type 2

    "Action" or grip myotonia may be seen. However, percussion myotonia is rare. There may be an associated neuropathy.[neuroweb.us] Muscle hypertrophy may be seen Grip and percussion myotonia can be seen Tx : Mexiletene.[sites.google.com] changes, with certain neurogenic features on EMG; and (e) rimmed vacuoles without obvious dystrophy on histopathology.[neuroweb.us]

  • Batten-Turner Congenital Myopathy

    Myotonia (prolonged muscle contraction) occurs spontaneously or is elicited by voluntary activity or by mild stimulation, such as tapping on a muscle (percussion myotonia)[neuropathology-web.org] Both patients showed myogenic changes with abundant fibrillation, and needle EMG revealed positive sharp waves.[jstage.jst.go.jp]

  • Myopathy

    Myotonia can be elicited by percussion, occurs by impaired relaxation of muscle due to repetitive depolarization of the muscle.[doi.org] Serum CK and sodium level are elevated with myogenic changes on the EMG study. Muscle weakness improves while the hypernatremia is getting corrected.[doi.org] Look for other associated signs including myotonia, paramyotonia, and muscle hypertrophy to exclude other non-systemic causes of muscle weakness.[doi.org]

  • Proximal Myopathy with Extrapyramidal Signs

    "Action" or grip myotonia may be seen. However, percussion myotonia is rare. There may be an associated neuropathy.[neuroweb.us] Percussion of an affected muscle produces percussion myotonia, a dimpling of the skin, and sustained contraction.[intranet.tdmu.edu.ua] changes, with certain neurogenic features on EMG; and (e) rimmed vacuoles without obvious dystrophy on histopathology.[neuroweb.us]

  • Steroid Myopathy

    Myotonia can be elicited by percussion, occurs by impaired relaxation of muscle due to repetitive depolarization of the muscle.[frontiersin.org] Serum CK and sodium level are elevated with myogenic changes on the EMG study. Muscle weakness improves while the hypernatremia is getting corrected.[frontiersin.org] Look for other associated signs including myotonia, paramyotonia, and muscle hypertrophy to exclude other non-systemic causes of muscle weakness.[frontiersin.org]

  • Alcoholic Myopathy

    "Action" or grip myotonia may be seen. However, percussion myotonia is rare. There may be an associated neuropathy.[neuroweb.us] Serum CK and sodium level are elevated with myogenic changes on the EMG study. Muscle weakness improves while the hypernatremia is getting corrected.[frontiersin.org] Myotonia may precede the weakness by years and can be easily elicited (clinically and on EMG) in the hands and tongue after forceful contraction ( action myotonia ) or percussion[neuroweb.us]

  • Myopathy, Endocrine

    Myotonia is an inability to relax a muscle normally after contraction.[78stepshealth.us] Serum CK and sodium level are elevated with myogenic changes on the EMG study. Muscle weakness improves while the hypernatremia is getting corrected.[frontiersin.org] Hypertrophic muscles may exhibit myotonia-like contractions that are electrically silent on EMG. 1. Laboratory studies. Serum CK is often markedly elevated.[78stepshealth.us]

  • X-Linked Scapuloperoneal Myopathy

    Myotonia (prolonged muscle contraction) occurs spontaneously or is elicited by voluntary activity or by mild stimulation, such as tapping on a muscle (percussion myotonia)[neuropathology-web.org] (EMG): myogenic changes Muscle biopsy Genetic study (Immunoblot homogenate allow diffenrentiation between Duchenne & Becker) Asymptomatic female Foetus diagnsis possible ([slideplayer.com] […] extensor muscles (percussion myotonia) Results from several different abnormalities of muscle membrane and is treated with membrane-stabilizing drugs (quinine, procainamide[quizlet.com]

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