Baroreflex activation therapy in patients with pre-existing implantable cardioverter-defibrillator: compatible, complementary therapies

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Abstract

Aims

The Neo™ System (CVRx) is an implantable device, CE certified for the treatment of resistant hypertension and investigationally used to treat systolic heart failure by electrical stimulation of the carotid baroreceptors. It is unknown whether interaction might exist between the Neo System and implantable cardioverter-defibrillators (ICDs).

Methods and results

Compatibility of the Neo device was tested in seven consecutive patients with pre-existing ICDs. Intra- and post-operative testing was completed with ICD and Neo settings programmed to provoke interaction. Intracardiac electrograms were printed to determine interaction with the ICD. Interaction testing during implantation and follow-up showed that there was no device–device interaction. No interaction was observed at maximum atrial and ventricular sensitivity settings and maximum Neo output settings.

Conclusion

Combined therapy with the Neo device and at least in this study reported that transvenous ICD systems can be performed safely.

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