Comparison between His-bundle pacing guided by Ensite NavX system and conventional fluoroscopy

Area of Science:

• Cardiology
• Medical Devices
• Electrophysiology

Background:

• Conventional fluoroscopy guidance for His-bundle pacing (HBP) is associated with high fluoroscopy exposure.
• Minimizing radiation dose is crucial for patient safety during cardiac procedures.

Purpose of the Study:

• To evaluate the feasibility of using the Ensite NavX system for His-bundle pacing.
• To compare pacing parameters and fluoroscopy doses between the Ensite NavX system and conventional fluoroscopy guidance.

Main Methods:

• A prospective study enrolled 30 patients undergoing HBP, with 15 patients in the Ensite NavX group and 15 in the conventional fluoroscopy group.
• Procedure time, fluoroscopy doses (FD), and pacing parameters were recorded at implant and 3-month follow-up.

Main Results:

• Successful HBP was achieved in 93.3% of patients using the Ensite NavX system.
• The Ensite NavX group had significantly lower total FD (1.4 ± 0.5 mGy) and His lead FD (0.4 ± 0.3 mGy) compared to the conventional group (16.1 ± 2.2 mGy and 12.5 ± 2.2 mGy, respectively).
• No significant differences in pacing parameters were observed between the groups at implant and follow-up.

Conclusions:

• His-bundle pacing guided by the Ensite NavX system is an efficient procedure.
• The Ensite NavX system offers a significant reduction in fluoroscopy exposure compared to conventional fluoroscopy.