Cardiac resynchronization therapy is used to treat dyssynchronous heart failure. Lead-related complications and anatomical constraints can limit pacing lead placement, but leadless systems are now becoming available. These new systems overcome lead-related issues, offering a new option for patients with complex disease (such as congenital heart disease) by eliminating intravascular hardware.
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References
Glikson, M. et al. 2021 ESC guidelines on cardiac pacing and cardiac resynchronization therapy. Eur. Heart J. 42, 3427–3520 (2021).
Singh, J. P. et al. Leadless ultrasound-based cardiac resynchronization system in heart failure. JAMA Cardiol. 9, 871–879 (2024).
Reddy, V. Y. et al. First-in-human study of a leadless pacemaker system for left bundle branch area pacing. Heart Rhythm https://doi.org/10.1016/j.hrthm.2025.04.030 (2025).
Carabelli, A. et al. European experience with a first totally leadless cardiac resynchronization therapy pacemaker system. Europace 23, 740–747 (2021).
Sidhu, B. S. et al. Completely leadless cardiac resynchronization defibrillator system. JACC Clin. Electrophysiol. 6, 588–589 (2020).
Wijesuriya, N. et al. Potential applications of ultrasound-based leadless endocardial pacing in adult congenital heart disease. Heart Rhythm 22, 546–553 (2025).
Rösner, A., McElhinney, D. B., Diab, S. G., Friedberg, M. K. & Lui, G. K. Classic-pattern dyssynchrony is associated with outcome in patients with Fontan circulation. J. Am. Soc. Echocardiogr. 35, 513–522 (2022).
Chubb, H. et al. Multicenter study of survival benefit of cardiac resynchronization therapy in pediatric and congenital heart disease. JACC Clin. Electrophysiol. 10, 539–550 (2024).
Hayle, P., Altayeb, F., Hale, A., Rao, A. & Ashrafi, R. Case report demonstrating novel approaches for leadless pacemaker implantation in the single ventricle heart. Eur. Heart J. Case Rep. 9, ytaf146 (2025).
Strocchi, M. et al. Computational modelling enabling in silico trials for cardiac physiologic pacing. J. Cardiovasc. Transl. Res. 17, 685–694 (2024).
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S.N. has received research support form EBR Systems. C.A.R. has received research funding and speaker fees from Abbott, EBR Systems and Siemens. The other authors declare no competing interests.
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Niederer, S., Chubb, H., Bilchick, K.C. et al. Leadless and extravascular cardiac resynchronization therapy: the future for CRT?. Nat Rev Cardiol 22, 529–531 (2025). https://doi.org/10.1038/s41569-025-01178-3
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DOI: https://doi.org/10.1038/s41569-025-01178-3