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Related Experiment Videos

Prolonged QT interval in Rett syndrome.

C J Ellaway1, G Sholler, H Leonard

  • 1Western Sydney Genetics Program, The Royal Alexandra Hospital for Children, PO Box 3515 Parramatta, Westmead, Sydney, NSW 2124, Australia.

Archives of Disease in Childhood
|April 20, 1999
PubMed
Summary

Rett syndrome patients show significantly prolonged QT intervals, indicating a higher risk of cardiac issues. This finding highlights the importance of cardiac monitoring in managing this neurodevelopmental disorder.

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Area of Science:

  • Neuroscience
  • Cardiology
  • Genetics

Background:

  • Rett syndrome is a severe neurodevelopmental disorder with unknown causes.
  • Previous studies suggest a potential link between Rett syndrome and prolonged QT intervals.

Purpose of the Study:

  • To investigate the prevalence of QT prolongation and cardiac tachyarrhythmias in Rett syndrome patients.
  • To compare cardiac measurements in Rett syndrome patients with healthy controls.

Main Methods:

  • Prospective study involving 34 girls with Rett syndrome.
  • Electrocardiography and 24-hour Holter monitoring were utilized.
  • Comparison with a control group of healthy individuals.

Main Results:

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  • Nine out of 34 Rett syndrome patients exhibited prolonged corrected QT values.
  • Patients with Rett syndrome had significantly longer corrected QT values than controls.
  • Clinical severity did not predict QT interval prolongation.

    • Conclusions:

    • Prolonged QT intervals are a significant finding in Rett syndrome.
    • Prolonged QT syndrome, a potentially lethal condition, should be considered in all girls with Rett syndrome.
    • Regular cardiac monitoring is recommended for patients with Rett syndrome.