What is torsades de pointes?

What is torsades de pointes?

• A. A slow ventricular rhythm
• B. A form of very rapid ventricular rhythm
• C. A regular pattern of ventricular beats
• D. A type of atrial fibrillation

Answer: (B)

Torsades de pointes is characterized by a distinctive form of polymorphic ventricular tachycardia that occurs in the context of a prolonged QT interval. It is often associated with a rapid and irregular rhythm, which can exceed 200 beats per minute. The term "torsades de pointes" translates to "twisting of the points," referring to the characteristic shifting of the peak of the QRS complexes on the EKG, creating a twisting appearance. This rapid ventricular rhythm can lead to hemodynamic instability and may progress to more severe arrhythmias or cardiac arrest if not addressed promptly.

In contrast, a slow ventricular rhythm, a regular pattern of ventricular beats, or a type of atrial fibrillation describe other conditions that differ significantly in both their clinical presentation and EKG characteristics.