Question:  Cardiac contractility modulation a treatment for patients with moderate to severe left ventricular systolic heart failure and is delivered by a medical device which uses electrical impulses, delivered by electrodes contracting the heart muscles, to regulate what?
Sentence (from "Cardiac contractility modulation"): The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity by modulating (adjusting) the myocardial contractility.
Relevant evidence: No