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The kidney in pediatric liver transplantation: an updated perspective

Robyn Greenfield Matloff1, Ronen Arnon, Jeffrey M Saland

  • 1Division of Pediatric Nephrology and Hypertension, Mount Sinai Medical Center, New York, NY 10029, USA.

Pediatric Transplantation
|November 8, 2012
PubMed

Insights

Chronic kidney disease (CKD) affects 25-38% of pediatric liver transplant recipients within 5-10 years. Early detection and management of proteinuria, hypertension, and minimizing nephrotoxic medication are key to slowing CKD progression.

Area of Science:

  • Nephrology
  • Pediatric Gastroenterology
  • Transplantation Medicine

Background:

  • Chronic kidney disease (CKD) is a significant complication impacting long-term outcomes in pediatric liver transplant recipients.
  • The prevalence and impact of CKD in this population are often underestimated, despite improvements in overall survival.
  • Renal dysfunction poses a threat to the success of liver transplantation in children.

Purpose of the Study:

  • To review the current literature on the prevalence, causes, and management strategies for renal dysfunction in pediatric liver transplant recipients.
  • To highlight the under-recognition of CKD in this vulnerable patient group.
  • To provide evidence-based recommendations for delaying or preventing CKD progression.

Main Methods:

  • Systematic review of existing literature on CKD in pediatric liver transplant recipients.
  • Analysis of studies reporting prevalence, etiological factors, and management approaches.
  • Evaluation of diagnostic tools for renal function and hypertension monitoring.

Main Results:

  • Long-term studies indicate a CKD prevalence of 25-38% by 5-10 years post-transplant.
  • Serum creatinine alone is an unreliable marker for assessing renal function in these patients.
  • Persistent proteinuria, hypertension (diagnosed via ambulatory blood pressure monitoring), and nephrotoxic insults are major contributors to CKD.
  • Calcineurin inhibitor (CNI) toxicity is a primary cause of long-term CKD.
  • CNI minimization protocols show potential in slowing CKD progression without compromising graft function.

Conclusions:

  • CKD is a prevalent and serious complication following pediatric liver transplantation.
  • Comprehensive screening, including proteinuria and ambulatory blood pressure monitoring, is crucial for early detection.
  • Minimizing nephrotoxic exposures, particularly CNI toxicity, is essential for renal protection.
  • Further large-scale randomized controlled trials are needed to validate CNI minimization strategies and long-term outcomes.

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