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Sleep disorders associated with primary mitochondrial diseases.

Ryan J Ramezani1, Peter W Stacpoole2

  • 1Department of Medicine, University of Florida, College of Medicine, Gainesville, FL.

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|October 18, 2014
PubMed
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Primary mitochondrial diseases, caused by DNA mutations, can lead to sleep disturbances like central sleep apnea. Recognizing these sleep issues is crucial for patient evaluation and treatment.

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Area of Science:

  • Neurology
  • Genetics
  • Sleep Medicine

Background:

  • Primary mitochondrial diseases stem from mutations in nuclear or mitochondrial DNA.
  • These conditions can cause neurological and neuromuscular complications affecting sleep.
  • Sleep disturbances are potentially underreported in patients with mitochondrial disorders.

Purpose of the Study:

  • To investigate the association between primary mitochondrial diseases and sleep pathology.
  • To review literature reporting abnormal sleep in patients with mitochondrial disorders.

Main Methods:

  • Literature review of publications from February 1976 to January 2014.
  • Searched Web of Science and PubMed databases.
  • Identified 54 patients with primary mitochondrial disorders evaluated for sleep disturbances.

Main Results:

  • Both nuclear and mitochondrial DNA mutations were linked to abnormal sleep patterns.
  • Central sleep apnea was the most common polysomnography finding.
  • Reduced ventilatory drive to hypoxia/hyperapnea occurred in 24 patients.

Conclusions:

  • Sleep pathology is a likely complication of primary mitochondrial diseases, often presenting as central sleep apnea.
  • Cellular energy failure is the probable mechanism, causing neurological and neuromuscular changes.
  • Increased awareness among sleep specialists and clinicians is vital for diagnosis and management.