Cardiac Rhythm Management
Articles Articles 2019 December 2019 - Volume 10 Issue 12


DOI: 10.19102/icrm.2019.101208


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Dr. Mansour reports the reception of research grants from Abbott Laboratories, Biosense Webster, Johnson & Johnson, Boston Scientific, Medtronic, Pfizer, Boehringer Ingelheim, and SentreHeart. He is also a consultant for Abbott Laboratories, Biosense Webster, Johnson & Johnson, Boston Scientific, Janssen, Medtronic, Phillips, Novartis, and SentreHeart and reports an equity relationship with EPS Solutions. All aforementioned relationships are in the area of atrial fibrillation; Dr. Mansour additionally reports an equity relationship in the area of ventricular fibrillation with NewPace Ltd.


Dear Readers,

The management of patients undergoing the extraction of cardiac implantable electronic devices (CIEDs) can demonstrate varying degrees of difficulty depending on these individuals’ unique anatomical and disease characteristics. Among patients who are dependent on pacing, a temporary solution as a bridge to reimplantation of the permanent device is necessary and, often, an externalized permanent device is used. However, this strategy can be associated with prolonged hospitalization and may be uncomfortable for the patient. Related to this topic, Gonzales et al. offer an interesting article in this issue of The Journal of Innovations in Cardiac Rhythm Management titled “Comparison of Leadless Pacing and Temporary Externalized Pacing Following Cardiac Implanted Device Extraction.”1 Here, they compare the outcomes of using leadless pacing and externalized devices, respectively, in the immediate postextraction period. While the study is retrospective and included a small number of patients, it is nonetheless important because the proposed strategy may facilitate improved care of patients after device extraction.

Leadless pacing was introduced a few years ago and its use has been expanding. It provides many advantages over conventional pacing, including the avoidance of long-term complications associated with intravascular leads. Moreover, because leadless devices contain less hardware, they may be less likely than conventional pacemakers to lead to infection. At this time, leadless pacing can only be performed in the right ventricle. However, studies are ongoing to test its use in left ventricular pacing2 and also in combination with subcutaneous defibrillation.3 Once commercially available, these technologies are expected to provoke a rapid expansion of leadless pacing, potentially leading it to replace conventional pacing and defibrillation entirely. As described in the article mentioned above, postextraction patients will particularly benefit from such future technologies.

I hope that you enjoy reading this issue of The Journal of Innovations in Cardiac Rhythm Management. I also would like to wish you happy holidays and a prosperous and healthy 2020!



Moussa Mansour, MD, FHRS, FACC

Editor in Chief

The Journal of Innovations in Cardiac Rhythm Management

Director, Atrial Fibrillation Program

Jeremy Ruskin and Dan Starks Endowed Chair in Cardiology

Massachusetts General Hospital

Boston, MA 02114


  1. Gonzales H, Richardson TD, Montgomery JA, Crossley GH, Ellis CR. Comparison of leadless pacing and temporary externalized pacing following cardiac implanted device extraction. J Innov Cardiac Rhythm Manage. 2019;10(12):3930–3936. [CrossRef]
  2. De Maria E, Ziacchi M, Diemberger I, Biffi M. Leadless left ventricular endocardial pacing: a real alternative or a luxury for a few?. Cardiovasc Diagn Ther. 2018;8(4):530–533. [CrossRef] [PubMed]
  3. Mondésert B, Dubuc M, Khairy P, Guerra PG, Gosselin G, Thibault B. Combination of a leadless pacemaker and subcutaneous defibrillator: First in-human report. HeartRhythm Case Rep. 2015;1(6):469–471. [CrossRef] [PubMed]