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Renal growth after transplantation: infant kidney received by adolescent
Insights
A young renal transplant recipient experienced rapid kidney growth and function improvement. The transplanted kidney demonstrated significant hypertrophy and enhanced glomerular filtration rate within weeks post-surgery.
Area of Science:
- Nephrology
- Transplantation immunology
- Pediatric nephrology
Background:
- Renal transplantation is a vital treatment for end-stage renal disease.
- Understanding post-transplant allograft adaptation is crucial for patient outcomes.
- The capacity for compensatory renal growth in pediatric recipients requires further investigation.
Abstract:
Renal growth and function were studied in a sixteen year old recipient of a renal transplant from a 16 month old cadaveric donor. Within one month, as measured by sequential inulin and creatinine clearances, glomerular filtration rate was 40 ml/min, which was more than 6 times the estimated pretransplant clearance. Ultrasound of the transplanted kidney revealed longitudinal growth from 7 cm at transplant to 11.5 cm by 8 weeks post-transplant. Radionuclide renal scintiphotography confirmed rapid functional and dimensional growth. There was no evidence of rejection, obstruction, or other complications during the time the allograft rapidly increased in size. Thus this case demonstrates a remarkable capacity of the human kidney to hypertrophy rapidly.