Paroxysmal tachycardia is a form of tachycardia which begins and ends in an acute (or paroxysmal) manner.

[1][2][3] 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.

[citation needed] It has an increased risk of developing in WPW syndrome and LGL syndrome.

This article about a medical condition affecting the circulatory system is a stub.