This registry includes patients who have undergone implantation of the cardiac contractility modulation device due to the presence of heart failure with reduced left ventricular systolic function and symptomatic despite optimal therapy, as indicated in the guidelines of the ESC of 2016 and the Expert Consensus Document of the ESC Heart Failure group published in May 2019 for to assess the benefits after the CCM device.
Observational and perspective study with acute and chronic endpoint.