Mechanisms of Syncope and of Sudden Death Due to Ventricular Tachyarrhythmias

  • G. Breithardt
  • M. Borggrefe
  • A. Podczeck
  • A. Martinez-Rubio


Syncope (defined as a sudden and transient loss or impairment of consciousness due to changes in cerebral function produced by circulatory, metabolic, or neuropsychological mechanisms) and sudden cardiac death are two alarming events that may have similar underlying mechanisms such as short- or long-lasting episodes of bradycardia or tachycardia. In addition, syncope may be due to innocent disturbances of circulatory regulation (such as orthostatic dysregulation, hypervagotonia, etc.) that may lead to transient reduction in cerebral blood flow and, thus, to loss of consciousness. The various causes of syncope as well as of the underlying cardiac disorders in which syncope is common are listed in Tables 1 and 2.


Ventricular Tachycardia Ventricular Arrhythmia Sudden Cardiac Death Ventricular Fibrillation Previous Myocardial Infarction 
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© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • G. Breithardt
  • M. Borggrefe
  • A. Podczeck
  • A. Martinez-Rubio

There are no affiliations available

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