Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience

Abstract Background Nephropathic Cystinosis is a rare autosomal recessive lysosomal storage disorder. In addition to kidney dysfunction, this disorder can also affect other organs, such as the eyes, thyroid, muscles, and central nervous system. Methods The current cross-sectional study included 56 p...

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Main Authors: Rasha Helmy, Fatma M. Atia, Neveen A. Soliman
Format: Article
Language:English
Published: BMC 2025-04-01
Series:Italian Journal of Pediatrics
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Online Access:https://doi.org/10.1186/s13052-025-01943-7
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author Rasha Helmy
Fatma M. Atia
Neveen A. Soliman
author_facet Rasha Helmy
Fatma M. Atia
Neveen A. Soliman
author_sort Rasha Helmy
collection DOAJ
description Abstract Background Nephropathic Cystinosis is a rare autosomal recessive lysosomal storage disorder. In addition to kidney dysfunction, this disorder can also affect other organs, such as the eyes, thyroid, muscles, and central nervous system. Methods The current cross-sectional study included 56 patients with nephropathic cystinosis to evaluate the clinical outcome in nephropathic cystinosis patients cohort with regarding kidney function and the need for kidney replacement therapy. Clinical and laboratory data were collected. Results Among the 56 patients in our study, 32 (57.1%) were male. Furthermore, 52 (92%) of these patients were offspring of consanguineous marriage. Patients’ mean age was 116.96 ± 54.1 months, and the mean onset of nephropathic cystinosis suggestive symptoms was 7.63 ± 3.2 months. In addition, the mean age of confirmed diagnosis was 45.38 ± 35.3 months, and the mean age of end-stage kidney disease (ESKD) was 104 ± 25.7 months. Eighteen patients (32.1%)underwent hemodialysis, whereas 12 patients (21.4%) underwent kidney transplantation. When comparing siblings within the same family, we observed a significant difference in the age at diagnosis. The median age for the first sibling was 60 months, while it was 24 months for the second sibling (p-value = 0.031). Additionally, there were significant differences in weight, chronic kidney disease (CKD) stage, and outcome. Conclusion Improvement in the awareness and the accessibility to diagnosis over years, early sibling screening, and kidney transplantation have a significant impact on the survival of both patients and kidney in children with nephropathic cystinosis.
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spelling doaj-art-3ea6e931ecc04dc1ae595bedd39793972025-08-20T02:10:54ZengBMCItalian Journal of Pediatrics1824-72882025-04-015111810.1186/s13052-025-01943-7Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experienceRasha Helmy0Fatma M. Atia1Neveen A. Soliman2Faculty of Medicine, Center of Pediatric Nephrology and Transplantation, Cairo UniversityFaculty of Medicine, Center of Pediatric Nephrology and Transplantation, Cairo UniversityFaculty of Medicine, Center of Pediatric Nephrology and Transplantation, Cairo UniversityAbstract Background Nephropathic Cystinosis is a rare autosomal recessive lysosomal storage disorder. In addition to kidney dysfunction, this disorder can also affect other organs, such as the eyes, thyroid, muscles, and central nervous system. Methods The current cross-sectional study included 56 patients with nephropathic cystinosis to evaluate the clinical outcome in nephropathic cystinosis patients cohort with regarding kidney function and the need for kidney replacement therapy. Clinical and laboratory data were collected. Results Among the 56 patients in our study, 32 (57.1%) were male. Furthermore, 52 (92%) of these patients were offspring of consanguineous marriage. Patients’ mean age was 116.96 ± 54.1 months, and the mean onset of nephropathic cystinosis suggestive symptoms was 7.63 ± 3.2 months. In addition, the mean age of confirmed diagnosis was 45.38 ± 35.3 months, and the mean age of end-stage kidney disease (ESKD) was 104 ± 25.7 months. Eighteen patients (32.1%)underwent hemodialysis, whereas 12 patients (21.4%) underwent kidney transplantation. When comparing siblings within the same family, we observed a significant difference in the age at diagnosis. The median age for the first sibling was 60 months, while it was 24 months for the second sibling (p-value = 0.031). Additionally, there were significant differences in weight, chronic kidney disease (CKD) stage, and outcome. Conclusion Improvement in the awareness and the accessibility to diagnosis over years, early sibling screening, and kidney transplantation have a significant impact on the survival of both patients and kidney in children with nephropathic cystinosis.https://doi.org/10.1186/s13052-025-01943-7CystinosisChildrenOutcomeCKDKidney transplantation
spellingShingle Rasha Helmy
Fatma M. Atia
Neveen A. Soliman
Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
Italian Journal of Pediatrics
Cystinosis
Children
Outcome
CKD
Kidney transplantation
title Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
title_full Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
title_fullStr Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
title_full_unstemmed Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
title_short Native kidney and graft survival in a cohort of Egyptian children with nephropathic cystinosis: national referral center experience
title_sort native kidney and graft survival in a cohort of egyptian children with nephropathic cystinosis national referral center experience
topic Cystinosis
Children
Outcome
CKD
Kidney transplantation
url https://doi.org/10.1186/s13052-025-01943-7
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