AF Septal Pacing (Clinical Investigation Plan)

The evidence of treating AF by pacing is limited, although these algorithms are of interest, since they appear to be safe and usually add little additional cost.

Using a computer model, a new dual-stage septal pacing has been developed.The proposed septal pacing algorithm could suppress AF reentries in a more robust way than classical single site rapid pacing. The feasibility of pacing both atria simultaneously from a single lead placed in the interatrial septum has been previously demonstrated clinically. The septal pacing concept has also been successfully tested in a computer model of AF and in a pig model . Experimental studies are now needed to determine whether similar termination mechanisms and efficacies can be observed in humans.

The purpose of this non-randomized, non-controlled, acute, single-arm research study is to evaluate the feasibility to obtain a stable position of a ring of stimulation electrodes on the interatrial septum

Inclusion criteria

• Patient referred to the center to undergo ablation of the pulmonary vein using radiofrequency (initial AF ablation, or redo procedure).
• In case of paroxysmal AF the right atrium should be dilated as indicated by > 29 ml mm2 or the left atrium should be dilated as indicated by > 34 ml mm2.
• Patient is willing and able to cooperate with the study procedure.
• Patient is willing to provide the Informed Consent for their participation in the study.

Exclusion criteria

• Patients under 18 years or over 80 years old.
• Women who are currently pregnant or have a positive pregnancy test.
• Patients with an implantable cardiac device.
• Patients who already underwent an AF septal ablation procedure.