Cystinuria-a urologist's perspective

Nat Rev Urol. 2014 May;11(5):270-7. doi: 10.1038/nrurol.2014.51. Epub 2014 Mar 25.

Abstract

Cystinuria is a genetic disease that leads to frequent formation of stones. In patients with recurrent stone formation, particularly patients <30 years old or those who have siblings with stone disease, urologists should maintain a high index of suspicion of the diagnosis of cystinuria. Patients with cystinuria require frequent follow-up and a multidisciplinary approach to diagnosis, prevention and management. Patients have reported success in preventing stone episodes by maintaining dietary changes using a tailored review from a specialist dietician. For patients who do not respond to conservative lifestyle measures, medical therapy to alkalinize urine and thiol-binding drugs can help. A pre-emptive approach to the surgical management of cystine stones is recommended by treating smaller stones with minimally invasive techniques before they enlarge to a size that makes management difficult. However, a multimodal approach can be required for larger complex stones. Current cystinuria research is focused on methods of monitoring disease activity, novel drug therapies and genotype-phenotype studies. The future of research is collaboration at a national and international level, facilitated by groups such as the Rare Kidney Stone Consortium and the UK Registry of Rare Kidney Diseases.

Publication types

  • Review

MeSH terms

  • Combined Modality Therapy
  • Cystinuria* / diagnosis
  • Cystinuria* / genetics
  • Cystinuria* / therapy
  • Genetic Markers
  • Humans
  • Kidney Calculi / diagnosis
  • Kidney Calculi / genetics
  • Kidney Calculi / therapy
  • Secondary Prevention

Substances

  • Genetic Markers