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Related Experiment Videos

Sinus node arrest secondary to HSV encephalitis.

Belinda K Smith1, Mark J Cook, David L Prior

  • 1Department of Cardiology, St Vincent's Hospital, Melbourne, Fitzroy, 3065, Victoria, Australia. bdakic@hotmail.com

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|March 21, 2007
PubMed
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Herpes simplex virus (HSV) encephalitis can cause recurrent syncope due to sinus node arrest, mimicking cardiac issues. Early diagnosis and management of HSV encephalitis can resolve arrhythmias, often avoiding permanent pacemakers.

Area of Science:

  • Neurology
  • Cardiology
  • Infectious Diseases

Background:

  • Herpes simplex virus (HSV) encephalitis is a severe neurological condition.
  • Cardiac arrhythmias, including sinus node arrest, can be a rare manifestation.
  • Syncope may initially suggest a primary cardiac etiology.

Observation:

  • A patient presented with recurrent syncope attributed to sinus node arrest.
  • Initial investigations pointed towards a cardiac cause for the syncope.
  • Advanced imaging (CT, MRI) and HSV polymerase chain reaction confirmed encephalitis.

Findings:

  • HSV encephalitis was diagnosed in a patient presenting with syncope and sinus node arrest.
  • Cardiac arrhythmias in HSV encephalitis have an unclear mechanism.

Related Experiment Videos

  • Cardiac monitoring is recommended for suspected cases of HSV encephalitis.

    • Implications:

    • This case underscores the importance of considering infectious etiologies like HSV encephalitis for unexplained syncope and sinus node dysfunction.
    • Prompt diagnosis and treatment of HSV encephalitis can lead to resolution of cardiac arrhythmias.
    • Permanent pacemaker implantation is often unnecessary with appropriate management of HSV encephalitis.