The EasySense device is a non-invasive device designed to measure lung fluid in patients with Congestive Heart Failure (CHF). This study seeks to evaluate the efficacy of the EasySense system in measuring lung fluid volume.

Across the globe, Congestive Heart Failure (CHF) continues to be the leading cause of mortality and hospitalizations in the 21st century. Despite advancements, prognosis often remains poor and mortality high. Congestive Heart Failure diagnoses are often characterized by frequent hospitalizations and re-admissions, and early detection of pulmonary edema, a chief characteristic of worsening heart failure, may have positive implications in patients' quality of life and frequency of hospitalizations. The EasySense device is a non-invasive device designed to measure lung fluid in patients with CHF. Similar to ultrasound technology, the device uses radiofrequency waves to assess fluid status. The device is placed on the bare skin of the chest and held in place for approximately 60 seconds to obtain a reading.

This study seeks to evaluate the efficacy of the EasySense system in measuring lung fluid volume. Seventy-five patients are sought for enrollment. Patients will be enrolled during their hospital stay, and will be asked to maintain daily EasySense measurements, in addition to other measurements, for thirty days post-discharge.

Inclusion Criteria:

• Current hospitalization for acute decompensated heart failure requiring IV diuretics or vasoactive drugs
• NYHA class II-IV
• Willing and able to participate in index and follow-up measurements
• Able to speak, read, and write in English
• Knows how to use a smartphone
• Preference for patients who undergo a right heart catheterization or continuous pulmonary artery monitoring upon admission or during hospitalization

Exclusion Criteria:

• Current or planned treatments with any inotropic agents or mechanical support (LVAD, intra-aortic balloon pump, invasive mechanically assisted ventilation) at time of enrollment
• Requiring demand pacing
• Prior heart transplant
• End-stage renal disease on hemodialysis
• Physical deformities in the thorax area that may prevent proper application of EasySense device, as assessed by investigator
• Sign of local rib cage or thoracic lesion or any illness which may be aggravated or cause significant discomfort from application of EasySense device, as assessed by investigator
• Pregnancy or lactation

This study seeks to enroll patients over the age of 21, diagnosed with congestive heart failure, who are admitted to the hospital for acute decompensated heart failure.