Mitochondrial myopathies

Evidence-based neurology checklist on mitochondrial myopathies: Causes of mitochondrial myopathy Mitochondrial encephalomyopathy lactic acidosis and stroke-like episodes (MELAS) Myoclonic Epilepsy with Ragged Red Fibers (MERRF) Kearns Sayre syndrome (KSS) Chronic progressive external…

Causes of mitochondrial myopathy

  • Mitochondrial encephalomyopathy lactic acidosis and stroke-like episodes (MELAS)
  • Myoclonic Epilepsy with Ragged Red Fibers (MERRF)
  • Kearns Sayre syndrome (KSS)
  • Chronic progressive external ophthalmoplegia (CPEO)
  • Leigh syndrome
  • Long-term Zidovudine therapy

Clinical features

Associated features

Differential diagnosis

Blood tests

Muscle biopsy

Treatments

Drugs to avoid

References

  1. Ahmed ST, Craven L, Russell OM, Turnbull DM, Vincent AE. Diagnosis and treatment of mitochondrial myopathies. Neurotherapeutics 2018; 15:943-953.
  2. van Adel BA, Tarnopolsky MA. Metabolic myopathies: update 2009. J Clin Neuromuscul Dis 2009; 10:97-121.
  3. Dalakas MC, Illa I, Pezeshkpour GH, Laukaitis JP, Cohen B, Griffin JL. Mitochondrial myopathy caused by long-term zidovudine therapy. N Engl J Med 1990; 322:1098-1105.
  4. Olimpio C, Tiet MY, Horvath R. Primary mitochondrial myopathies in childhood. Neuromuscul Disord 2021; 31:978-987. 
  5. Schoser BG, Pongratz D. Extraocular mitochondrial myopathies and their differential diagnosis. Strabismus 2006; 14:107-113.
  6. And 3 more. Subscribe to see the full list

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