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Published on: September 1, 2015
CKD and Its Risk Factors among Patients with Cystinuria
Caroline Prot-Bertoye1, Saïd Lebbah1, Michel Daudon1
1Due to the number of contributing authors,the affiliations are provided in the Supplemental Material.
Cystinuria frequently leads to chronic kidney disease (CKD) and high blood pressure (BP) in patients. Routine screening for these conditions is crucial for managing cystinuria complications.
Area of Science:
- Nephrology
- Urology
- Genetics
Background:
- Cystinuria is an autosomal recessive disorder impacting renal cystine reabsorption.
- It is a significant cause of kidney stones in both adults and children.
Purpose of the Study:
- To investigate the epidemiologic and clinical features of cystinuria.
- To identify comorbidities, specifically chronic kidney disease (CKD) and high blood pressure (BP), in cystinuric patients.
Main Methods:
- A retrospective study involving 442 cystinuric patients across 47 French centers.
- Data collected from April 2010 to January 2012.
Main Results:
- The median age of symptom onset was 16.7 years, with a median diagnostic delay of 1.3 years.
- Among patients aged 16 years or older, 28.6% had high BP, and varying degrees of reduced estimated glomerular filtration rate (eGFR) were observed.
- CKD was associated with age, hypertension, and severe renal parenchymal damage; hypertension was linked to age, male sex, and reduced eGFR.
Conclusions:
- Chronic kidney disease (CKD) and high blood pressure (BP) are common in cystinuria patients.
- Regular screening for CKD and high BP is recommended for individuals with cystinuria.
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