Children with intestinal failure maintain their renal function on long-term parenteral nutrition

Anat Guz Mark, Shelly Levi, Miriam Davidovits, Luba Marderfeld, Raanan Shamir

Research output: Contribution to journalArticlepeer-review


Background: Long-term parenteral nutrition (PN) has been associated with renal compli-cations, including hypercalciuria, nephrocalcinosis, proteinuria and reduced glomerular filtration rate (GFR). Pediatric data are scarce and mostly short-term. Our study aimed to evaluate renal complications in children with intestinal failure (IF) receiving long-term PN. Methods: A cross-sectional study was performed in a tertiary pediatric IF clinic of patients receiving home-PN treatment for more than 1 year. Data regarding medical background, anthropometrics, laboratory investigations and abdominal sonography were retrieved. Results: Complete data were available for 15 children (67% males), with a median age of 6 (range 1.5–15) years and a median (IQR) PN duration of 4 (1.5– 6) years. Low-grade proteinuria was identified in 61% and microalbuminuria in 30% of the cohort. Hypercalciuria and hyperoxaluria were present in 50% and 46%, respectively. One patient had nephrocalcinosis. The estimated GFR was normal in all but one patient who had pre-existing kidney disease. Conclusions: Pediatric IF patients can present with preserved kidney function after years of PN treatment. Despite the high prevalence of hypercalciuria, nephrocalcinosis was not common. Base line and long-term monitoring of various aspects of renal function would be essential to char-acterize the effects of prolonged PN on kidney functions in pediatric patients.

Original languageEnglish
Article number3647
Issue number10
StatePublished - Oct 2021


  • Calciuria
  • Complications
  • Follow up
  • Kidney
  • Proteinuria
  • Total parenteral nutrition


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