There are three main mechanisms of TPSV: Nodal Reentry Tachycardia (NRT), Atrioventricular Reentry Tachycardia (AVRT) and Atrial Tachycardia. Each of these mechanisms is distinct and occurs due to different conditions or factors, such as abnormalities in the heart's electrical system, previous heart disease, stress, among others.
Nodal Reentry Tachycardia (NRT) is one of the most common forms of TPSV, and occurs when the electrical wave is redirected back to the atrioventricular node through an additional pathway from the AV node itself.
Atrioventricular Reentry Tachycardia (AVRT) is a less common form of TPSV and is caused by an abnormality in the heart's electrical system (presence of additional electrical communication between the atria and ventricles, called the accessory pathway), which leads to reentry. of electrical impulses between the atria and ventricles.
Atrial Tachycardia is the simplest form of TPSV, and occurs when there is abnormal electrical activity in the atrium, leading to accelerated heartbeats.
In all cases, it is important that a doctor is consulted to determine the type of TPSV and the best treatment for the patient, as in many cases, radiofrequency ablation can be an effective and safe option to permanently treat TPSV. .