Continuous and stable recording of the His bundle electrogram during open heart operations

Area of Science:

• Cardiology
• Cardiac Electrophysiology
• Surgical Innovation

Background:

• Supraventricular tachyarrhythmias pose a significant challenge during cardiac surgery.
• Accurate electrophysiological mapping is crucial for effective ablation of arrhythmias.
• The His bundle electrogram (HBE) provides vital information about the atrioventricular conduction system.

Purpose of the Study:

• To introduce a novel method for continuous His bundle electrogram recording.
• To assess the utility of this technique during open heart surgical procedures.
• To evaluate its effectiveness in ablating supraventricular tachyarrhythmias.

Main Methods:

• Development of a technique for stabilized His bundle electrogram recording.
• Application of the method from the aortic root during open heart surgery.
• Continuous monitoring throughout surgical procedures.

Main Results:

• The described method allowed for continuous recording of the stabilized His bundle electrogram.
• The technique proved useful in all surgical procedures where it was applied.
• Successful ablation of supraventricular tachyarrhythmias in the region of the atrioventricular conduction system was facilitated.

Conclusions:

• Continuous His bundle electrogram recording from the aortic root is feasible and effective.
• This technique offers a valuable tool for managing supraventricular tachyarrhythmias during cardiac surgery.
• The method simplifies electrophysiological assessment and ablation in the vicinity of the atrioventricular conduction system.