Cardiovascular Diagnosis Using µ-Cor - an Interventional Pilot Trial

Inclusion Criteria: * Men or women 20-90 years old. * New York Heart Association (NYHA) class III-IV heart failure * Followed by the Congestive Heart Failure (CHF) clinic in Nazareth * Left ventricular ejection fraction \<35% * Requiring treatment with \>40mg/day of furosemide\* orally or with repeated bolus or intravenous infusion of furosemide\* (\*or equivalent bumetanide or torasemide). Exclusion Criteria: * Pregnancy * Subjects who have received a heart transplant. * Subjects who are unable or unwilling to follow the study requirements. * Patients with allergies or skin sensitivities to electrode hydrogel and/or acrylic based adhesive. * Patients with skin breakdown in areas on the chest where device and electrode placement is required