Ventricular septal pacing: Optimum method to position the lead

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Right ventricular (RV) apical pacing is associated with adverse hemodynamic effects.
• Adverse outcomes correlate with the cumulative percentage of ventricular pacing.
• Current algorithms to minimize pacing require intact atrioventricular (AV) conduction.

Purpose of the Study:

• To address the need for alternative ventricular pacing sites in patients with high pacing burden.
• To investigate the ventricular septum as a primary alternative pacing site.
• To evaluate the adequacy of current methods for confirming septal lead placement.

Main Methods:

• Review of existing literature on RV pacing and septal pacing techniques.
• Analysis of fluoroscopic and electrocardiographic (ECG) criteria for lead positioning.
• Discussion of limitations of conventional methods for septal lead confirmation.

Main Results:

• RV apical pacing can lead to negative hemodynamic consequences.
• Ventricular septal pacing, particularly in the outflow tract or mid-septum, is a viable alternative.
• Conventional fluoroscopic and ECG assessments for septal lead placement are often insufficient.

Conclusions:

• A systematic approach is required for optimal septal ventricular lead positioning.
• Improved methods are needed to accurately confirm lead placement in the ventricular septum.
• Optimizing lead placement can mitigate adverse hemodynamic effects of ventricular pacing.