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. 2022 Oct 15;13(10):5205–5218. doi: 10.19102/icrm.2022.13102

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Copyright: © 2022 Innovations in Cardiac Rhythm Management

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2: — Chest radiograph of a cardiac contractility modulation (CCM) implant. Displayed are (A) a 3-lead CCM system only, (B) a 2-lead CCM system only, and (C) a 2-lead CCM system with a dual-chamber implantable cardioverter-defibrillator. Of note, the designation of the septal CCM leads as “LS” and “RV” is not determined by location, but rather the differential timing of sensing on each lead at implant. Abbreviations: CCM, cardiac contractility modulation; ICD, implantable cardioverter-defibrillator; IPG, implanted pulse generator; LS, local sense; RA, right atrial; RAI, right atrial ICD; RV, right ventricular; RVI, right ventricular implantable cardioverter-defibrillator.