Presentation
Presentations range anywhere from acute, painful, and necrotic myopathies, as can occur in statin myopathy, to more insidious presentations such as steroid myopathy. [ncbi.nlm.nih.gov]
Increased intracranial pressure is not a constant finding, but may be present. Hyperparathyroidism: Myopathy is a prominent finding. Both symmetric weakness of the proximal limbs and atrophy are present. [emedicine.medscape.com]
Fiber degeneration and necrosis are present. Serum muscle enzymes are characteristically elevated. By the end of the second week, a 15% to 50% eosinophilia is present. Serologic tests become positive by the end of the third week. 2. [78stepshealth.us]
Musculoskeletal
- Muscular Atrophy
The muscular dystrophies The muscular dystrophies are a group of hereditary disorders characterized by progressive muscular atrophy and weakness. In most varieties the muscles of the limb girdles—the pelvic and shoulder muscles—are involved. [britannica.com]
Duchenne in 1855 first described a progressive muscular atrophy of childhood and was termed “hypertrophic paraplegia of infancy”. [slideplayer.com]
Spinal muscular atrophy. Congenital hypomyelinating neuropathies. It may be difficult to distinguish myopathy from peripheral neuropathy. [patient.info]
Severe types with the expressed atrophy of muscles it is necessary to distinguish from muscular dystrophies, paraneoplastic myopathy, proximal spinal muscular atrophy and diabetic proximal amyotrophy (atrophy proximal muscles); when we mention bulbar [scirp.org]
[…] dystrophy: Duchenne muscular dystrophy, Becker muscular dystrophy Limb girdle muscular dystrophy LGMDs Fascioscapulohumeral muscular dystrophy FSH a.k.a. [learningneurology.com]
Workup
This innovative one-page format provides the definition, differential diagnosis, workup and diagnosis, and treatment options for nearly 170 diseases and disorders. [books.google.com]
[…] incidence 40-60 years Hyperthyroid myopathy - Peak incidence 20-60 years Hypothyroid myopathy - Incidence increases after 40 years Cushing myopathy - Peak incidence 20-40 years CLINICAL Section 3 of 10 Author Information Introduction Clinical Differentials Workup [forums.prohealth.com]
A neurologic examination that shows deficits in a single nerve or radicular distribution indicates a possible mononeuritis, entrapment neuropathy, or radiculopathy, and calls for a different workup than that required for a limb paresis in a patient with [aafp.org]
Biopsy
- Muscle Biopsy showing Fiber Atrophy
Muscle biopsy shows fibers atrophy usually not associated with degeneration. Surgical approach is considered the way to treat primary hyperparathyroidism leading to a regression of the myopathic disorder. [ncbi.nlm.nih.gov]
Treatment
200 9 Ankylosing Spondylitis C Treatment and Assessment 209 10 Reactive and Enteropathic Arthritis 217 11 Osteoarthritis A Clinical Features 224 11 Osteoarthritis B Pathology and Pathogenesis 229 11 Osteoarthritis C Treatment 235 12 Gout A Clinical Features [books.google.com]
Cores often disappear after treatment with levo-thyroxine. [ncbi.nlm.nih.gov]
Scientists are working to develop treatments and therapies for these diseases. See Research. For stories of families living with endocrine myopathies, see our stories on Strongly, the MDA Blog, or see endocrine myopathies stories on The Mighty. [mda.org]
Treatment of hypothyroidism is thyroid hormone replacement. With proper therapy, serum CK levels return to normal over several months. B. Thyrotoxic myopathy. [78stepshealth.us]
Prognosis
Prognosis Prognosis is also very dependent of aetiology. E.g. congenital myopathies are chronic and progress over years, whereas other myopathies are more acute and can quickly lead to respiratory failure and other complications. [teesneuro.org]
Scapular winging Fasciculations Rhabdomyolysis : With thyroid storm Bulbar syndrome: Dysphagia Tendon reflexes : Brisk Lab High T 3 or T 4 CK: Normal or low EMG: Myopathic; ± Fasciculations or fibrillations Muscle pathology: Normal or type 2 atrophy Prognosis [neuromuscular.wustl.edu]
Prognosis This depends on the specific diagnosis. The primary disorders are incurable conditions with varied prognosis. Secondary myopathy may be corrected by treating the underlying cause. [patient.info]
Prognosis Prognosis is quite good. In two to four months after euthryoid state is achieved, muscle weakness improves. But it may take up to a year for muscle bulk to return. Respiratory failure is very rare. [encyclopedia.com]
Etiology
Myopathy is a common term for a muscle disease that is unrelated to any disorder of innervation or neuromuscular junction, with a wide range of possible etiologies. [news-medical.net]
The etiologies of hyperadrenalism include pituitary or ectopic overproduction of adrenocorticotropic hormone (ACTH), adrenal tumors, or exogenous corticosteroid administration. [emedicine.medscape.com]
Rhabdomyolysis may also be seen with infectious etiologies, alcohol, and toxic exposures. [clevelandclinicmeded.com]
Adrenal dysfunction The etiologies of hypoadrenalism are many, including infection, inflammatory disease, and tumor. Notably, adrenal failure may follow pituitary failure. [forums.prohealth.com]
Epidemiology
Pathology and Pathogenesis 319 15 Systemic Lupus Erythematosus C Treatment and Assessment 327 16 Antiphospholipid Syndrome 339 17 Systemic Sclerosis A Clinical Features 343 17 Systemic Sclerosis B Epidemiology Pathology and Pathogenesis 351 17 Systemic [books.google.com]
Friedman, CR, Neimann, J., Wegener, HC, and Tauxe, RV Epidemiology of Campylobacter jejuni infections in the United States and other industrialized nations. [books.google.es]
Sensory-Motor neuropathy SPG 22 Ataxia May increase risk of: Statin myopathy External links eMedicine Hyperthyroidism Epidemiology Female > Male Onset: Average 5th decade Myopathy (80%) Onset Slowly progressive; More common with increasing age Acute onset [neuromuscular.wustl.edu]
Epidemiology These are all relatively uncommon diseases: Duchenne muscular dystrophy is easily the most common childhood-onset muscular dystrophy and affects 1 in 3,300 boys. [ 6 ] The prevalence of Duchenne muscular dystrophy is 63 cases per million. [patient.info]
Polymyalgia rheumatica (PMR) and temporal arteritis (TA): Although research is just beginning, Imrich and colleagues note that age-related changes in the neuroendocrine system could represent a pathogenic factor for PMR and/or TA in genetically disposed. [5] Epidemiology [emedicine.medscape.com]
Pathophysiology
This article discusses the clinical features, pathophysiology, and management of toxic and endocrine myopathies. [ncbi.nlm.nih.gov]
Muscle and Neuromuscular Junction Disorders p. 1815-1828 December 2016, Vol.22, No.6 doi: 10.1212/CON.0000000000000407 REVIEW ARTICLES Article Related Links Abstract Purpose of Review: This article discusses the clinical features, pathophysiology, and [journals.lww.com]
Get a quick and memorable overview of anatomy, pathophysiology, and clinical presentation from the precision and beauty of Netter and Netter-style plates that highlight key neuroanatomical and neurologic concepts. [books.google.com]
Steroid myopathy is the most common endocrine myopathy. [1] Pathophysiology Although abnormal endocrine states usually present with muscle weakness—most often proximal weakness—the exact pathophysiology remains incompletely understood. [emedicine.medscape.com]
Sarcopenia is their pathophysiological common denominator. Recent reports have shown that endocrine disorders, even when subclinical, may also be associated with tendinopathies. [touchendocrinology.com]
Prevention
Early detection and expeditious correction of metabolic disturbances in endocrinopathies such as Cushing syndrome, thyroid and parathyroid diseases, and acromegaly can minimize and prevent neurologic complications including myopathy. [ncbi.nlm.nih.gov]
Recent Findings: Early detection and expeditious correction of metabolic disturbances in endocrinopathies such as Cushing syndrome, thyroid and parathyroid diseases, and acromegaly can minimize and prevent neurologic complications including myopathy. [journals.lww.com]
Physical therapists can help in devising muscle strengthening exercises and in preventing muscle contractures. Protective eye glasses and eye patches are used to prevent corneal exposure and ulceration. [encyclopedia.com]
Prevention Genetic counselling is, in some of the most common myopathies such as Duchenne muscular dystrophy, the only intervention that can prevent disease. In general: Give genetic counselling early. [patient.info]
Preventive treatment for permanent contraction of a muscle ( contractures ) includes physical therapy and bracing. There are currently no drugs available to prevent or treat contractures. [consultantsinneurology.com]