Correlating Noninvasive Cardiovascular Measures to Left Ventricular End Diastolic Pressure in Heart Failure

Inclusion Criteria: * Adult patients ≥ 18 years old * Signs and symptoms of congestive heart failure including two of the following: * Peripheral edema (e.g. abdominal distension, hepatomegaly, lower extremity edema) in the setting of elevated jugular venous pressure as assessed by the clinical examination, or by right heart catheterization. * Pulmonary edema or pleural effusion as seen on chest X-ray * Elevated N-terminal pro-brain natriuretic peptide (NT-Pro BNP) 2x the upper limit of normal. * Willing and able to comply with the study protocol * Willing and able to give valid Informed Consent Exclusion Criteria: * Pregnant patients * Presence of Left Ventricular Assist Device (LVAD) or heart transplant * Complex congenital heart disorder or prosthetic valve on right side * Known mitral stenosis * Unstable medical condition or impairment other than condition associated with HF * Unstable hypertension * Too unstable in the judgment of the investigator to be included in the study * Active lung infection or acute pulmonary decompensation * Elevated white blood cell count and signs of infection are evident * Does not have the cognitive ability to understand and sign the Informed Consent * Does not have the cognitive capacity to perform handgrip test * Is not able to perform a handgrip stress test * Is not able to wear any of the devices * Patient's life expectancy is less than 3 months