<unk>  is a form of tachycardia which begins and ends in an acute (or<unk>  manner. It is also known as "Bouveret-Hoffmann syndrome".
Paroxysmal tachycardia
Tachycardia
Junctional tachycardia
Automatic tachycardia
Inappropriate sinus tachycardia
Ventricular escape beat
Sinus arrhythmia
Sinoatrial arrest