What is the second lesion produced by the Simplicity device known as?

The second lesion produced by the Simplicity device is characterized as a bipolar lesion between the medial and proximal electrodes. This designation is significant because it reflects the nature of the energy delivery and its impact on the tissue being targeted.

In the context of radiofrequency ablation, the term "bipolar" indicates that the energy is conducted between two electrodes, facilitating localized heating and thermal damage to the surrounding tissue. The key distinction here is that this method allows for a more controlled and effective lesion formation compared to monopolar techniques, which typically involve a single source of current.

The specific anatomy of the electrodes—medial and proximal—further influences the type of lesion that is produced. Targeting this specific area with the bipolar configuration enables the intervention to achieve its therapeutic goals, particularly in procedures aimed at treating conditions like hypertension or arrhythmias. Thus, the correct identification of this lesion type is crucial for understanding the procedural outcomes and the underlying mechanisms at play.