The Prognosis of Idiopathic Premature Ventricular Beats in Children with Structurally Normal Hearts

The objective of this study is to evaluate the prognosis of idiopathic premature ventricular beats (PVBs) in children. We retrospectively evaluated 73 children ( .05 for all parameters). The CR rate of PVBs was different among patients with infrequent, moderate, and frequent PVBs (62.8%, 36.4%, and 31.6%, respectively). Premature ventricular beats disappeared more often during follow-up in patients with infrequent PVBs (P = .045). However, the absolute decrease and disappearance rates of PVBs were similar across all groups (72.1%, 81.8%, and 89.5%, respectively; P = .319). The resolution rates of PVBs were not statistically different between the patient group who received pharmacological treatment and the group who followed up without treatment (P = .070). No myocardial dysfunction was observed in any patient during follow-up. No cases experienced major cardiac events. Idiopathic PVBs usually regress in childhood regardless of frequency and complexity or receiving antiarrhythmic medication. The risk of ventricular dysfunction is low during childhood; however, they require careful evaluation and follow-up.