Premature Ventricular Complex (PVC) ablation is performed in certain indications. Generally acutely abolition of PVC at the time of ablation accepted as successful ablation. However in some patients this effect occurs lately. In this study investigators sought late effect of ablation

On tissue level ablation lesion deepens and enlarges by time following the procedure. Based on this, investigators aimed to seek patients who has no acute success but late success. This phenomenon occurs in some patients. Investigators investigate the characteristics of those patients on both procedural and clinical aspects. Investigators enroll patients applied during prespecified dates

Inclusion Criteria:

Patients who had both of the criteria below

• Presence of premature ventricular complex requiring ablation
• Successfully abolition of premature ventricular complex hours after the procedure

Exclusion Criteria:

Patients who had either of below mentioned criteria

• Abolition of premature ventricular complex during the procedure
• Unsuccessful procedure

Individuals having premature complexes and matching ablation indications are included and selection will be based on above mentioned criteria