Paroxysmal tachycardia is a form of tachycardia

Tachycardia

Tachycardia comes from the Greek words tachys and kardia . Tachycardia typically refers to a heart rate that exceeds the normal range for a resting heart rate...

 which begins and ends in an acute

Acute

Acute may refer to:* Acute accent* Acute angle* Acute * Acute * Acute toxicity...

 (or paroxysmal) manner.

It is also known as "Bouveret-Hoffmann syndrome".

Classification

It can be divided by the origin:

• supraventricular tachycardia
  Supraventricular tachycardia
  Supraventricular tachycardia is a general term that refers to any rapid heart rhythm originating above the ventricular tissue. Supraventricular tachycardias can be contrasted to the potentially more dangerous ventricular tachycardias - rapid rhythms that originate within the ventricular...
  
  
• ventricular tachycardia
  Ventricular tachycardia
  Ventricular tachycardia is a tachycardia, or fast heart rhythm, that originates in one of the ventricles of the heart...
  
  

Cause

The cause of this condition is not accurately known, though it is probably of nervous origin and can be aggravated by physical wear and tear. The symptoms are sometimes very alarming but it is not considered in itself dangerous.

It has an increased risk of developing in WPW syndrome and LGL Syndrome.