Kidney Stones in Children: Causes, Consequences, and Concerns

Area of Science:

• Pediatric Nephrology
• Medical Genetics

Background:

• Pediatric kidney stone (nephrolithiasis) prevalence has increased significantly over the past two decades.
• Environmental factors like obesity, high-fructose drinks, high sodium intake, low water consumption, and antibiotic use contribute to this rise.
• Advancements in next-generation sequencing (NGS) facilitate the detection of monogenic causes of nephrolithiasis.

Purpose of the Study:

• To review the rising prevalence, causes, diagnostic approaches, and management strategies for pediatric nephrolithiasis.
• To highlight the importance of genetic and metabolic evaluations in diagnosing monogenic forms of kidney stones in children.
• To emphasize the need for a multidisciplinary approach in managing pediatric kidney stones.

Main Methods:

• Comprehensive review of current literature on pediatric nephrolithiasis.
• Discussion of diagnostic tools including history, physical examination, imaging (renal ultrasound), metabolic evaluation, and genetic testing.
• Analysis of identified monogenic causes such as primary hyperoxaluria, hypercalciuria, hyperuricosuria, cystinuria, and APRT deficiency.

Main Results:

• Identified key environmental contributors to pediatric kidney stones.
• Detailed various monogenic causes identified through genetic testing.
• Highlighted the high recurrence risk and potential severe morbidities in children with kidney stones.

Conclusions:

• Accurate diagnosis, including genetic and metabolic work-up, is crucial for effective management of pediatric nephrolithiasis.
• A multidisciplinary team approach involving pediatricians, nephrologists, urologists, and dietitians is essential.
• Prioritizing prevention alongside timely and precise diagnosis is vital for optimal outcomes in pediatric kidney stone patients.