Impact of acute renal failure on the relationship between N-terminal pro-B-type natriuretic peptide and hemodynamic parameters.

Background: We studied the influence of acute renal failure (ARF) on the relationship between N-terminal pro-B-type natriuretic peptide (NT-proBNP) and hemodynamic parameters.

Methods: The echocardiographic parameters and NT-proBNP levels were compared between 26 mechanically ventilated patients with ARF requiring continuous hemodiafiltration and 44 control patients.

Results: The relationships between NT-proBNP and left ventricular ejection fraction (p = 0.

Cystatin C as a marker of residual renal function during continuous hemodiafiltration.

Background: The level of residual renal function (RRF) has an important impact on follow-up in critically ill patients with renal failure. There is currently no clear marker of RRF.

Methods: Cystatin C (cysC) concentrations were measured before and during the first 48 h of CVVHDF in 33 mechanically ventilated patients suffering from renal failure.

Relationship between natriuretic peptides and residual diuresis during continuous hemodiafiltration.

Background: The reasons for the decrease or increase of urine output following the start of continuous venovenous hemodiafiltration (CVVHDF) have not yet been explained sufficiently. The renoprotective properties of natriuretic peptides were described.

Methods: The levels of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) were measured in 23 mechanically ventilated patients before and during the first 48 h of CVVHDF.