4.2 Study limitations
Our study findings should be interpreted in light of our study limitations, the first of which is its execution as a study involving a fairly small number of patients. Second, the recorded bipolar voltages might have been affected by various factors, such as catheter orientation, contact force, electrode area, and interelectrode spacing. We note, however, that the best performing currently available mapping catheter was used. Third, gaps might have been caused by various other factors, such as the catheter contact angle, circulating blood flow, and trabecula in the LA. All of these factors need to be considered to ensure lesion durability.