Related Experiment Videos
[Hereditary diseases causing kidney calculi]
P Cochat1, M Jouvenet, H Pellet
1Unité de néphrologie pédiatrique, Hôpital Edouard-Herriot, Lyon.
Insights
Hereditary kidney stone diseases, including idiopathic hypercalciuria and cystinuria, require prompt physician awareness. Early diagnosis and specific management are crucial for long-term renal health and therapeutic compliance.
Area of Science:
- Nephrology
- Medical Genetics
Context:
- Hereditary kidney stone diseases (urolithiasis/nephrocalcinosis) are rare but significant conditions.
- These conditions affect both pediatric (10-40% of lithiases) and adult (less than 15%) populations.
- Specific management is essential due to the underlying genetic basis.
Purpose:
- To highlight the importance of recognizing hereditary causes of kidney stones.
- To outline common hereditary stone-forming disorders.
- To emphasize diagnostic and management strategies.
Summary:
- Frequent hereditary disorders include idiopathic hypercalciuria, distal tubular acidosis, cystinuria, and hyperoxaluria.
- Stone formation results from increased urinary concentrations of calcium, oxalate, phosphate, cystine, or xanthine.
- Infrared spectrophotometry is key for stone composition analysis; biochemical tests are alternatives.
- Management involves high fluid intake, potential alkalinization, and specific therapeutic procedures.
Impact:
- Early identification and tailored treatment improve long-term renal prognosis.
- Physician awareness of these rare conditions is critical for timely intervention.
- Patient adherence to therapy significantly influences outcomes in hereditary stone disease.
Abstract:
Urolithiasis and/or nephrocalcinosis due to hereditary diseases are a rare event which must be kept in mind of physicians who take care of children (10 to 40% of all causes of lithiases) as well as of adults (less than 15% of all causes of lithiases) since a specific management is usually required. The most frequent inborn disorders are idiopathic hypercalciuria, distal tubular acidosis, cystinuria and hyperoxaluria. Stone formation is always secondary to an increased urine concentration of promotors, i.e. calcium, oxalate, phosphate, cystine, xanthine. One of the most informative diagnosis investigation is infrared spectrophotometry which can identify stone composition. When such a technique is not available, biochemical investigations should be adapted to both personal and family history. In addition to high fluid intake (2 to 3 L/m2/24 h) sometimes associated with alcalinisation, the management of hereditary stone disease requires specific procedure. In all cases, the long-term renal prognosis is related to both primary disease and therapeutic compliance.