The results of Impulse Dynamics’ FIX-HF-5 pivotal trial conducted in the US  will be published in the American Heart Journal. The paper, “A Randomized Controlled Trial Evaluating the Safety and Efficacy of Cardiac Contractility Modulation in Advanced Heart Failure” presents the results of a study performed in 428 patients with NYHA Class III or IV symptoms who received either an Optimizer III system implant or medications.