What is one type of lead used in conduction system pacing (CSP)?

In the context of conduction system pacing (CSP), one of the commonly utilized leads is indeed a lumenless lead. This type of lead is designed specifically for accessing and pacing the conduction system, such as the His bundle or left bundle branch, without an inner lumen. The absence of a lumen can allow for a smaller profile, making it easier to navigate through the heart's anatomy while providing effective electrical stimulation directly to the conduction pathways.

Lumenless leads are particularly beneficial in CSP because they help minimize complications associated with lead placement and can enhance the precision of pacing, enabling clinicians to achieve more optimal pacing thresholds and better patient outcomes. Such leads have gained traction in recent years due to advances in technology and understanding of cardiac conduction, making them a viable option for specialized pacing strategies.