EGM Analysis in Idiopathic Outflow Tract Ventricular Arrhythmia

Usefulness of Unipolar and Bipolar Electrograms in Predicting Successful Ablation Site During Idiopathic Outflow Tract Ventricular Arrhythmia Ablation

Investigate the value of unipolar and bipolar electrograms (EGM) for predicting the successful ablation site for idiopathic outflow tract ventricular arrhythmia (OTVA).

The proposed study aims to evaluate the predictive value of using reversed polarity in adjacent bipolar EGMs (bi-RP method) and unipolar EGM with QS morphology (uni-QS method) for identifying successful ablation site, and evaluate the feasibility of enhancing uni-QS method's performance by using its morphology characteristics such as descending slope and symmetry.

Inclusion Criteria:

• Patients scheduled to undergo ablation for idiopathic OTVA
• Have the ability to provide informed consent for study participation.

Exclusion Criteria:

• Be currently participating in any other investigational study
• Be less than 18 years of age
• Be pregnant
• Has any other conditions that are not suitable for catheter ablation (including but are not limited to active whole-body infection or sepsis, coagulation or hemorrhage disorder history)