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Investigations

Authoring team

Pertinent investigations in myotonic dystrophy show:

  • slightly raised CPK enzyme levels
  • conduction abnormalities on ECG
  • characteristic myopathic EMG, with so-called dive bomber noise
  • cataracts may be seen by slit lamp examination
  • if urinary glucose is positive, it is followed by glucose tolerance test to confirm diabetes

Other features:

  • vital capacity may be impaired
  • disordered oesophageal motility may be observed radiologically
  • reduced levels of IgG

Click here for an example ECG and further information

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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