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  • Title: Atrial natriuretic peptide and cyclic 3'5'-guanosine monophosphate as indicators of fluid volume overload in children with chronic renal failure.
    Author: Lettgen B, Bald M, Valleé H, Bonzel KE, Rascher W.
    Journal: Pediatr Nephrol; 1992 Jan; 6(1):60-4. PubMed ID: 1311187.
    Abstract:
    Plasma atrial natriuretic peptide (ANP) and cyclic 3'5'-guanosine monophosphate (cGMP) were investigated as indicators of fluid volume overload in children and adolescents with chronic renal failure. Plasma ANP and cGMP were measured in both paediatric patients with chronic renal failure (n = 17, mean serum creatinine 371 +/- 242 mumol/l) and those with end-stage renal disease on haemodialysis (n = 18). cGMP was higher in children with chronic renal failure than in 45 healthy controls (1.0 +/- 0.4 vs 2.1 +/- 0.8 nmol/l, P less than 0.01), whereas plasma ANP was similar (26.9 +/- 9.7 vs 34.0 +/- 12.3 pmol/l). Both ANP and cGMP were markedly elevated in children with end-stage renal disease before haemodialysis and fell significantly during dialysis. During dialysis body weight decreased by 1.6 +/- 0.7 kg, corresponding to 4.5 +/- 2.1% of body weight. Plasma ANP correlated positively with plasma cGMP in haemodialysed patients (r = 0.43, P less than 0.05). Reduction in body weight and in mean arterial pressure correlated more closely with plasma ANP than with cGMP. Therefore, elevation of plasma ANP appears to indicate volume overload in children undergoing haemodialysis, but whether it can be used also in children with chronic renal failure requires further investigation.
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