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Updated: Jan 2, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
Optimizer Smart in the treatment of moderate-to-severe chronic heart failure
Courtney M Campbell1, Rami Kahwash1, William T Abraham1
1Department of Internal Medicine, Division of Cardiovascular Medicine, The Ohio State University Wexner Medical Center, 200 Davis Heart & Lung Institute, 473 W 12th Ave, Columbus, OH 43210, USA.
Abstract:
Cardiac contractility modulation, also referred to as CCM™, by the Optimizer Smart device is an innovative intracardiac device-based therapy that has been recently US FDA-approved for the treatment of patients with chronic heart failure, left ventricular ejection fraction (LVEF) between 25 and 45%, QRS <130 ms who remain symptomatic despite optimal medical therapy. Clinical trials demonstrate that CCM therapy is safe and effective in reducing heart failure hospitalization and improving heart failure symptoms, quality of life and functional performance. This novel device-based therapeutic offers benefits to patients who do not otherwise qualify for cardiac resynchronization therapy. CCM expands the indication beyond the traditional LVEF cutoff of 35% to a newer group including patients who fall in midrange LVEF group, up to 45%.
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