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Respiratory involvement in inherited primary muscle conditions
  1. N Shahrizaila1,
  2. W J M Kinnear2,
  3. A J Wills1
  1. 1Department of Neurology, Queen’s Medical Centre, Nottingham, UK
  2. 2Department of Respiratory Medicine, Queen’s Medical Centre
  1. Correspondence to:
 A Wills
 Department of Neurology, Queen’s Medical Centre, Nottingham NG7 2UH, UK; adewills61{at}


Patients with inherited muscle disorders can develop respiratory muscle weakness leading to ventilatory failure. Predicting the extent of respiratory involvement in the different types of inherited muscle disorders is important, as it allows clinicians to impart prognostic information and offers an opportunity for early interventional management strategies. The approach to respiratory assessment in patients with muscle disorders, the current knowledge of respiratory impairment in different muscle disorders and advice on the management of respiratory complications are summarised.

  • AMD, acid maltase deficiency
  • DM1, myotonic dystrophy
  • DM2, proximal myotonic myopathy
  • DMD, dystrophinopathy
  • EDMD, Emery–Dreifuss muscular dystrophy
  • EDS, excessive daytime sleepiness
  • FRC, functional residual capacity
  • FSH, facioscapulohumeral dystrophy
  • FVC, forced vital capacity
  • LGMD, limb-girdle muscular dystrophy
  • MDC, congenital muscular dystrophy
  • MIP, maximal inspiratory mouth pressure
  • NIV, non-invasive invasive ventilation
  • PaCO2, arterial carbon dioxide tension
  • SNIP, sniff nasal inspiratory pressure
  • SpO2, single oxygen saturation
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  • Competing interests: None declared.

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