Paroxysmal ventricular tachycardia in children

Paroxysmal ventricular tachycardia (PVT) in children refers to paroxysmal tachyarrhythmias that occur below the His bundle and its bifurcation. It is reported to account for about 6% of tachyarrhythmias Severe tachyarrhythmia can develop into ventricular fibrillation, which causes sudden cardiac death, and prone to hemodynamic changes due to ventricular tachycardia, often causing symptoms such as palpitation, chest tightness, dyspnea, darkening, syncope, and shock. Therefore, ventricular tachycardia is a pediatric emergency and requires urgent treatment. Features of paroxysmal ventricular tachycardia in children: ① QRS wave is wide and deformed, and T wave is mostly opposite to the main wave direction; ② atrioventricular separation; ③ ventricular capture or ventricular fusion wave; ④ ventricular tachycardia.