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  • Title: Effect of iodinated contrast agents on residual renal function in PD patients.
    Author: Moranne O, Willoteaux S, Pagniez D, Dequiedt P, Boulanger E.
    Journal: Nephrol Dial Transplant; 2006 Apr; 21(4):1040-5. PubMed ID: 16352623.
    Abstract:
    BACKGROUND: Residual renal function (RRF) is an important predictor of outcome in peritoneal dialysis (PD) patients. Although increasing emphasis has been placed on preserving RRF, the nephrotoxicity associated with contrast medium administration in PD patients remains a controversial issue. In the present prospective study, we evaluated the evolution of RRF 2 weeks after iodinated contrast medium administration (ICMA) in a group of stable PD patients, and compared it with that in a non-treated control group of stable PD subjects. METHODS: The study was conducted from January 2003 to October 2004. RRF was quantified by the average of 24 h urinary urea and creatinine clearance and peritoneal creatinine clearance (PcrCl) were analyzed, the levels of which were analysed prior to and 2 weeks following ICMA in 36 PD patients and also assessed at the same time points in a group of 36 PD non-ICMA control subjects, matched according to RRF characteristics. Two weeks following ICMA, the values for RRF, daily urine volume and PcrCl were assessed against those at baseline, and the evolution of RRF was compared between the two groups. In the ICMA group, this study was performed with adequate pre-hydration and a minimum dose of contrast medium. RESULTS: Compared with baseline values, RRF, daily urine volume and PcrCl were not found to be significantly different 2 weeks after ICMA (7.0+/-4.3 vs 7.2+/-4.3 ml/min/1.73 m(2), P = 0.12; 1324+/-696 vs 1360+/-755 ml/day, P = 0.5; and 41.1+/-9 vs 40.6+/-9 l/week/1.73 m(2), P = 0.6, respectively). Following ICMA, variations in RRF and daily urine volume were found to be comparable with those of the control group (0.1+/-0.5 vs 0.1+/-0.5 ml/min/1.73 m(2), P = 0.9; 36+/-440 vs 40+/-493 ml/day, P = 0.8, respectively). CONCLUSION: In this study, 2 weeks following ICMA, no accelerated decline in RRF was determined in stable PD patients with adequate pre-hydration, i.e. subjects treated under optimal circumstances compared with the control group.
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