Routine transplant Doppler ultrasonography following pediatric kidney transplant

Area of Science:

• Pediatric Nephrology
• Transplant Surgery
• Diagnostic Imaging

Background:

• Routine post-transplant renal duplex ultrasounds (DU) are part of some pediatric renal transplant protocols.
• The clinical utility and cost-effectiveness of these routine DUs have not been systematically evaluated.

Purpose of the Study:

• To evaluate the utility and cost-effectiveness of routine postoperative renal DU in pediatric renal transplant recipients.
• To determine if routine DU findings influenced patient management and graft outcomes.

Main Methods:

• Retrospective review of 113 pediatric renal transplant recipients.
• Analysis of indications for DU (routine vs. non-routine), timing, results, and impact on patient management.
• Cost analysis of routine DU examinations.

Main Results:

• Eighty routine DUs were evaluated; 37.5% showed abnormalities, mostly minor.
• Only one intervention (increased bladder catheterization) was based on a routine DU finding.
• Routine DUs leading to follow-up studies did not result in any interventions.
• The incremental cost per DU exceeded $1080, with a cost-effectiveness ratio over $86,400 for documented management changes.

Conclusions:

• Routine post-transplant renal DU is not a cost-effective screening tool in pediatric renal allograft recipients.
• The low yield of significant findings and high cost suggest alternative strategies should be considered.