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  • Title: Effect of 1-28 alpha-h atrial natriuretic peptide on acute renal failure in cadaveric renal transplantation.
    Author: Gianello P, Carlier M, Jamart J, Hulhoven R, Bernheim J, Bernard A, Ketelslegers JM, Squifflet JP.
    Journal: Clin Transplant; 1995 Dec; 9(6):481-9. PubMed ID: 8645892.
    Abstract:
    The efficacy and safety of (1-28) alpha-human ANP in preventing acute tubular necrosis (ATN) in cadaveric renal transplantation was tested by comparing ANP infusion with a maximal hydration (MH) regimen which we previously reported as effective in lowering the incidence of ATN (1, 2). Since the production of endogenous ANP increases with volume overloading (3), we hypothesized that increased endogenous ANP production may contribute to the beneficial effects of MH in renal transplant recipients. We thus conducted an open randomized study comparing the effect on early renal allograft function of MH (control group) versus moderate hydration plus ANP infusion (ANP group). Forty patients were blindly paired in two groups of 20 according to the duration of cold ischemia time (mean +/- 2 h). The demographic characteristics of donors and recipients were similar. Using a Swan-Ganz catheter, hemodynamic parameters were monitored for 4 h after transplantation. The group receiving ANP and moderate hydration was perfused to a mean pulmonary arterial pressure (PAP) of < or = 20 mmHg. The PAP in patients receiving MH was driven to > or = 25 mmHg. In the ANP group, a bolus of 100 micrograms of ANP was infused into the graft's renal artery at the time of unclamping, followed by 24 h of continuous intravenous infusion at 0.03 microgram/kg/min. Thereafter, the patients received ANP at a rate of 0.01 microgram/kg/min until the serum creatinine reached < 2 mg/dl. As a consequence of the hydration regimen, the PAP at unclamping was lower in the ANP group than in the control group; 20 +/- 3 and 26 +/- 4 mmHg, respectively (p < 0.05). The ANP plasma levels were significantly higher during the first 3 d in the ANP group (p < 0.001). The median recovery rate of renal function was similar in both groups. No patients in the ANP group experienced ATN while 4 patients (20%) in the control group did (p = 0.125). The need for hemodialysis was markedly reduced in the ANP group compared to the control group (1 ANP-treated patient required dialysis once whereas 5 patients from the control group underwent dialysis a total of 26 times; p = 0.068). ANP administration was well-tolerated and no hypotensive episodes were reported. This preliminary study suggests that ANP infusion is at least as effective as maximal hydration in preventing ATN and represents an efficient alternative for transplantation centers which do not use maximal hydration as a standard regimen in managing kidney allograft recipients.
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