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P-13.20 Outcomes of renal transplantation in children with cystinosis

Esra Baskin, Turkey

Baskent University Hospital


Outcomes of renal transplantation in children with cystinosis

Esra Baskin1, Kaan Gulleroglu1, Aysun Caltik Yilmaz1, Aydincan Akdur2, Gokhan Moray2, Mehmet A. Haberal2.

1Pediatric Nephrology, Baskent University, Ankara, Turkey; 2Transplantation, Baskent University, Ankara, Turkey

Introduction: Cystinosis is a rare lysosomal storage disease due to mutations in the CTNS gene. Although systemic disease manifestations continue, renal disease recurrence is not expected after transplant. We evaluate outcomes of renal transplant in children with cystinosis.
Method: We retrospectively evaluated the data files from 165 pediatric renal transplant patients. Patients with cystinosis and patients with other etiologies of chronic renal failure were divided into 2 groups. Demographics of the patients, graft functions, infections, acute rejection episodes and graft loss were recorded.
Results: One hundred sixty five children (M/F: 92/73) with kidney transplant were enrolled to the study, 8 of them had cystinosis. Although patients with cystinosis were youngest at the time of diagnosis when compared other patients (0.69±0.42 years vs. 7.76±5.20 years, p=0.00), mean ages at the time of the transplantation were similar (12.28±4.57 years vs. 12.95±4.75 years, p=0.69). Mean follow-up time after transplantation was 6.36±4.45 years. Acute rejection episode rate was 2 times higher in patients with other etiologies (12.55% vs. 24.87%).GFR values at 3rd (73.90±43.62 ml/min vs. 76.61±30.08 ml/min, p=0.84) and 5th year of follow-up (62.37±41.42 ml/min vs. 62.82±32.82 ml/min, p=0.98) of two groups was similar. 8 patients (4.84%) were lost their graft during 5 years follow-up. 1 of these patients was in cystinosis group.
Conclusion: Renal transplant has similar outcomes, with lowest acute rejection episode rate in children with cystinosis when compared with other patients with different etiology of chronic renal failure.


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