Studies have shown that more than 30% of the overall acute decompensated heart failure (ADHF) patients develop renal dysfunction.

Several studies have tried to find a correlation between hemodynamic Parameters (blood pressure , heart rate, central venous pressure CVP) and worsening of renal function in acute decompensated heart failure patients.

Results showed that there were no correlation between baseline hemodynamics or change in hemodynamics and worsening of renal function.

Another study showed that intra-abdominal pressure (IAP) measuring was a better corollary to renal failure status then measuring cardiovascular hemodynamics using pulmonary artery catheterization in ADHF patients.. An increased IAP was associated with worse renal function and that level of IAP far below abdominal compartment syndrome may adversely affect renal function in patients with ADHF.

Inclusion Criteria:

• Any ICU(intensive care unit) or CCU(critical care unit) patient older than 18 y.
• Patient diagnosed on admission with pulmonary edema/CHF (fluid in the lungs) - independently from the baseline renal function.
• No subject will be accepted to take part in the study unless they are able to sign or if Health care proxy signs a consent

Exclusion Criteria:

• Pregnant women
• Cognitively impaired patients
• Age<18 yrs old
• Patients diagnosed on admission with ARDS.
• Patients admitted with a diagnosis of sepsis ( WBC> 12000, CXR findings consistent with pneumonia, positive blood cultures on admission, UTI)

The studied group will consist of patients admitted to the ICU (intensive care unit) or CCU(coronary care ubnit) with evidence of ADHF. We aim in our study to find out if there is a linear relationship between worsening of renal function , IAP ,hemodynamic (CVP) and blood chemical measurements