Although VT is usually a regular or at least fairly irregular rhythm, it may be irregular as shown here. At times, sustained VT manifests either a “warm up” or “cool down” period prior to establishment of a near regular rhythm.

Is V tach a regular rhythm?

Key points about VT

Ventricular tachycardia (VT) is a fast, abnormal heart rhythm. This may last for only a few seconds or for a longer period of time. VT that lasts for only a few seconds may not need to be treated. Longer episodes of VT may be dangerous and require treatment and prevention.

Is polymorphic v tach regular or irregular?

Polymorphic VT is characterized by irregular WCT and AV dissociation. This type of VT can be induced in an electrophysiology laboratory during programmed ventricular stimulation or rapid ventricular pacing.