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Twelve-lead electrocardiogram with cardiac contractility modulation (CCM) in the OVO mode. The implantable pulse generator recognizes the seventh beat as a premature ventricular contraction under the upper rate limit of 110 bpm (red arrow), inhibiting CCM therapy. The post-inhibition response is programmed to “0” indicated by CCM being delivered with the next atrial paced and conducted beat (black arrow).
