Diagnosis and management of metabolic myopathies

Salman F Bhai*, John Vissing

*Corresponding author for this work


Metabolic myopathies are a set of rare inborn errors of metabolism leading to disruption in energy production. Relevant to skeletal muscle, glycogen storage disease and fatty acid oxidation defects can lead to exercise intolerance, rhabdomyolysis, and weakness in children and adults, distinct from the severe forms that involve multiple-organ systems. These nonspecific, dynamic symptoms along with conditions that mimic metabolic myopathies can make diagnosis challenging. Clinicians can shorten the time to diagnosis by recognizing the typical clinical phenotypes and performing next generation sequencing. With improved access and affordability of molecular testing, clinicians need to be well-versed in resolving variants of uncertain significance relevant to metabolic myopathies. Once identified, patients can improve quality of life, safely engage in exercise, and reduce episodes of rhabdomyolysis by modifying diet and lifestyle habits.

Original languageEnglish
JournalMuscle & Nerve
Issue number3
Pages (from-to)250-256
Number of pages7
Publication statusPublished - Sep 2023


  • Humans
  • Metabolism, Inborn Errors/diagnosis
  • Mitochondrial Myopathies/diagnosis
  • Muscle, Skeletal/metabolism
  • Muscular Diseases/diagnosis
  • Quality of Life
  • Rhabdomyolysis


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