Cystinuria in children: diagnosis and treatment

Mehmet İlker Gökçe1, Murat Can Karaburun2

  • 1Department of Urology, Ankara University Faculty of Medicine, Altındağ, 06230, Ankara, Turkey. migokce@yahoo.com.

PubMed

Insights

Cystinuria causes hereditary kidney stones in children due to impaired cystine reabsorption. Treatment focuses on increasing urine solubility and volume, with surgical options for resistant stones.

Area of Science:

  • Pediatric Nephrology
  • Urology
  • Medical Genetics

Background:

  • Cystinuria is the leading hereditary cause of kidney stones in children.
  • It results from a genetic defect in amino acid reabsorption in the renal tubules.

Purpose of the Study:

  • To provide a comprehensive overview of cystinuria in the pediatric population.
  • To discuss the pathophysiology, clinical presentation, and management of pediatric cystinuria.

Main Methods:

  • Literature review of studies on pediatric cystinuria.
  • Narrative synthesis for data analysis.

Main Results:

  • Cystinuria causes cystine precipitation and kidney stone formation due to poor solubility.
  • Recurrent kidney stones, renal colic, nausea, and hematuria are common presentations.
  • Medical management involves increasing urine volume and pH; surgical options include ureteroscopy and percutaneous nephrolithotomy (PCNL).

Conclusions:

  • Cystinuria is a primary genetic factor for pediatric kidney stones.
  • Treatment aims to prevent stone formation, remove existing stones, and prevent chronic kidney disease.
  • Effective management requires a combination of medical and surgical strategies tailored to the individual child.
Abstract

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