Relationship between Natriuretic Peptides and Residual Diuresis during Continuous Hemodiafiltration

23 mechanically ventilated patients undergoing continuous venovenous hemodiafiltration (CVVHDF) and a control group of 10 patients exposed to abdominal surgery.

Measurement of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) levels before and during the first 48 hours of CVVHDF.

Patients with increasing diuresis (≥1.5 ml/kg/h after 48 h, n=12) versus patients with low or decreasing diuresis (n=11); cardiac versus non-cardiac patients; CVVHDF patients versus abdominal surgery controls.

Relationship between ANP/BNP levels and daily diuresis (Vu) during the first 48 hours of CVVHDF.surrogate