Cystinuria
Cystinuria (Stone Disease) Kidney Specialists in Arizona
Cystinuria Kidney Specialists in Arizona
Cystinuria is a rare, inherited kidney disorder that causes high levels of the amino acid cystine to accumulate in the urine. When cystine levels become too high, crystals can form and develop into hard kidney stones. Unlike many other types of kidney stones, cystine stones often develop at a younger age and can recur throughout a person’s life.
At Southwest Kidney Institute, our board-certified nephrologists provide personalized care for patients with cystinuria. Through specialized treatment, preventive strategies, and ongoing monitoring, our goal is to help patients reduce kidney stone formation and protect their long-term kidney health.
Understanding Cystinuria and Its Symptoms
Normally, the kidneys filter substances from the blood and reabsorb essential nutrients, including amino acids. In patients with cystinuria, a genetic change prevents the kidneys from properly reabsorbing cystine, allowing excessive amounts to pass into the urine.
Because cystine does not dissolve easily in urine, it can form crystals that develop into kidney stones. These stones may grow large, recur frequently, and cause significant discomfort.
Common symptoms of cystinuria include:
- Sharp pain in the back, side, or lower abdomen
- Blood in the urine
- Nausea or vomiting
- Pain or discomfort during urination
- Frequent urinary tract infections
- Recurrent kidney stones, sometimes beginning in childhood or adolescence
Symptoms vary depending on the size and location of the stones. Early diagnosis and consistent management are important for reducing complications and preserving kidney function.
What Are My Treatment Options for Cystine Stones?
Preventing new kidney stones is a primary focus of cystinuria treatment. Since cystinuria is a lifelong genetic condition, patients often require ongoing medical management and lifestyle adjustments.
At Southwest Kidney Institute, our nephrologists develop individualized treatment plans based on each patient’s medical history, stone formation, and kidney health.
Treatment strategies may include increasing fluid intake to dilute cystine in the urine, dietary modifications, medications that make urine less acidic, and specialized medications that help reduce cystine stone formation. Regular urine testing and kidney monitoring may also be recommended.
Frequently Asked Questions About Cystinuria
Is cystinuria a hereditary condition?
Yes. Cystinuria is an inherited genetic disorder typically passed down when a person receives an altered gene from both parents. Individuals with a family history of cystine kidney stones may benefit from discussing testing with a kidney specialist.
How is cystinuria diagnosed?
Cystinuria may be diagnosed through urine testing that measures cystine levels, analysis of previously passed kidney stones, and a review of personal and family medical history. Imaging tests may also help identify existing stones. Genetic testing may be considered in certain cases.
Can cystinuria be cured?
Currently, there is no cure for cystinuria because it is a genetic condition. However, appropriate treatment and preventive care can help reduce the frequency of kidney stone formation and lower the risk of kidney complications.
How can I prevent cystine kidney stones?
Prevention often involves drinking enough fluids to maintain dilute urine, limiting sodium intake, and following prescribed medications. Your nephrologist can recommend specific fluid goals and dietary adjustments based on your individual needs.
Why is ongoing kidney care important for cystinuria?
Repeated kidney stones can cause urinary blockages, infections, and kidney damage. Regular appointments with a nephrologist allow for monitoring of kidney function, evaluation of treatment effectiveness, and adjustments to help prevent future stones.
Begin Personalized Cystinuria Management at Southwest Kidney Institute
If you experience recurring kidney stones, particularly at a young age, or have a family history of cystinuria, a professional kidney evaluation can help identify the underlying cause.
At Southwest Kidney Institute, our nephrologists provide comprehensive care for patients with cystinuria throughout Arizona. We focus on long-term kidney stone prevention, individualized treatment, and ongoing support to help patients manage this lifelong condition.
Schedule an appointment with a Southwest Kidney Institute nephrologist in Arizona to learn more about cystinuria diagnosis and treatment options.