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13 Possible Causes for Electromyogram Abnormal, Mild Cognitive Impairment, Percussion Myotonia

  • Myotonic Dystrophy

    Percussion myotonia or myotonia of grasp or both is usually present if looked for.[pediatrics.aappublications.org] Specifically, the regional distribution and neuropsychologic correlates of NFTs and amyloid plaques in cognitively normal elderly subjects and in persons with mild cognitive[doi.org] In addition to muscle problems, issues with respiratory function, heart abnormalities, cataracts, cognitive impairment and personality abnormalities are often seen.[web.archive.org]

  • Muscular Dystrophy

    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] cognitive impairment BMD X-linked recessive (Xp21) Prevalence 1/30 000 Teenage years Similar distribution of muscle wasting as in DMD, but more benign course 50%–70% eventually[doi.org] […] typically elicited by percussion of the thenar eminence with a tendon hammer—‘percussion myotonia’.[doi.org]

  • Generalized Myotonia of Thomsen

    On examination he showed percussion myotonia. There was no grip myotonia or eyelid myotonia. Nerve conduction studies were normal.[jnnp.bmj.com] Spasticity, dystonia, tremor and migraine were variably present; cognitive impairment was severe in early childhood cases, but was absent in adults.[jnnp.bmj.com] Electromyogram – Looks for muscle damage. Electrocardiogram – Checks for abnormalities in the heartbeat.[drugs.com]

  • Limb-Girdle Muscular Dystrophy

    Patients with myotonic dystrophy type 1 may present subtle myotonia and it may be necessary to search for tenar muscle percussion myotonia 15.[doi.org] cognitive impairment LGMD2B DYSF / Dysferlin Young adulthood Very high Slow Asymmetric weakness; preference for biceps with spared deltoid; Absent or reduced dysferlin staining[now.aapmr.org] RESULTS We studied a Turkish patient with a relatively mild form of muscular dystrophy accompanied by cognitive impairment (see Case 2 in Dinçer et al. 14 ).[ncbi.nlm.nih.gov]

  • Myotonic Syndrome

    […] used to test for percussion myotonia.[now.aapmr.org] The nature of the electrical abnormality was documented on the electromyogram.[remarkablemedicine.com] Myokymia, muscle hypertrophy and percussion "myotonia" in chronic recurrent polyneuropathy. Neurology. 1978 Nov. 28(11):1130-4. [Medline].[emedicine.medscape.com]

  • 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] There may be mild cognitive impairment. Alarm bells may sound. Is it ALS? MS? Prostate cancer? Parkinson’s disease? APBD is a leukodystrophy, a disorder of white matter.[blogs.plos.org] Nerve conduction velocity and electromyogram reveal an axonal lumbosacral polyradiculoneuropathy.[ncbi.nlm.nih.gov]

  • 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] However, the electromyogram (EMG) test results will show abnormalities. A muscle biopsy is done to confirm the diagnosis.[primehealthchannel.com] DMD patients have also cognitive impairment and behavioral abnormalities. Dystrophin is present in cortical neurons and Purkinje cells.[neuropathology-web.org]

  • Congenital Merosin-Positive Muscular Dystrophy

    The demonstration of grip or percussion myotonia and facial weakness in the mother establishes the diagnosis of myotonic dystrophy.[mrineonatalbrain.com] Cognitive impairment ranging from intellectual disability to mild cognitive delay, structural brain and/or eye abnormalities, and seizures are found almost exclusively in[ncbi.nlm.nih.gov] Creatinine phosphokinase (CPK) level was 2451 U/L and electromyogram was suggestive of a myopathic disorder. Brain imaging revealed no abnormality.[neurologyindia.com]

  • 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] Mild to moderate cognitive decline is a late feature in this disease and the disorder is caused by rinucleotide expansions which is similar to EA2 ataxia, areflexia and ophthalmoplegia[quizlet.com] The electromyogram is abnormal, with myopathic features.[intranet.tdmu.edu.ua]

  • Centronuclear Myopathy Type 4

    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] In rare cases, the mutation can also lead to a condition associated with elements of centronuclear myopathy, polyneuropathy, and mild cognitive impairment.[socialstyrelsen.se] Electroencephalographic abnormalities have been noted in several patients with the early-onset form of the disease before clinically apparent seizure activity begins.[anesthesiology.pubs.asahq.org]

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