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Chronic peritoneal dialysis (CPD) is the first treatment modality for most infants with end-stage renal failure; this group of patients shows peculiar clinical and technical problems. We present the data from a National Registry on 22 children starting CPD under one year of age, representing 11.6% of the total population of the Registry (189 patients). Mean weight at start of CPD was 6.1 +/- 1.8 kg and duration of dialysis was 22.1 +/- 15.5 months. During the follow-up period, 9 patients were transplanted, 1 was shifted to hemodialysis, and 4 died. Patient survival was 89.1% and 82.2% at 1 and 2 years (97.9% and 96.5% in the group of 167 older children); technique survival results were 89.1% at 1 year and 77.1% at 2 years (vs 92.5% and 85.7%, respectively). The incidence of peritonitis was 1 episode every 15.6 CPD-months (1:16.1 in the older children). Catheter-related complications occurred more frequently in infants (1:11.8 vs 1:17 episode:CPD-months), even if this difference was not statistically significant. Statural growth was on average -0.29 +/- 0.66 SD/year with a significant improvement between the first (-0.50 +/- 0.79) and the second (+0.23 +/- 0.77) year of CPD. Our data confirm that infants represent a higher risk group and that they can be treated satisfactorily with CPD while awaiting renal transplantation.

During the period 1986-1990, 119 patients were enrolled in the Italian Registry of Pediatric CPD. CAPD was largely predominant in the first 3 years, while CCPD accounted for 48% of dialysis months in the period 1989-1990. The connect-disconnect system was a Y set for all patients during the whole observation period. The incidence of peritonitis decreased from 1 episode: 10.9 patient-months in 1986 to 1:19.8 in 1988, and then passed to 1:16.2 in 1990. A comparison of the incidence of peritonitis between CAPD and CCPD, referring to the 1989-1990 period, showed no significant difference. The percentage of positive peritoneal fluid cultures changed from 48% in 1986 to 73% in 1990. Gram-positive bacteria, primarily Staphylococcus aureus and Staphylococcus epidermidis, accounted for most of the isolated organisms. Candida albicans was cultured in 3 cases both in 1986 and 1987. Exit site infection was the predominant (82%) complication, followed by leakage and catheter cuff extrusion. The hospitalization rate for peritonitis resulted persistently high (61% of episodes) and the mean duration was 12.7 days. Of the 8 patients who were switched to hemodialysis, 4 had recurrent peritonitis and 1 Candida albicans peritonitis.