Long-Term Follow-up Results of Children with Urolithiasis Followed in Our Clinic

Title and Objective: Urolithiasis is a prevalent condition frequently observed in childhood within the Turkish population. The aim of this study was to evaluate the metabolic, radiological, and clinical features of pediatric patients with urolithiasis. Materials and Methods: Records of 158 children referred to the Pediatric Nephrology Department of Celal Bayar University between 2010 and 2020 with suspected urolithiasis and microlithiasis were retrospectively reviewed. The complaints and ages of the cases during hospital admission, their medical histories, and the location of the stones were determined. All patients underwent complete urine analysis, spot urine electrolytes, urine culture, serum electrolytes, kidney function tests, uric acid, albumin measurements, and urinary ultrasonography. 24-hour urine electrolytes were studied in patients capable of urine collection. Stone analysis using X-ray diffraction was performed on patients from whom stones were obtained. Results: Out of the individuals, 88 (55.7%) were male, and 70 (44.3%) were female, resulting in a male-to-female ratio of 1.25:1. The average age at the time of diagnosis was determined to be 89.82 ± 57.35 months. A family history of urolithiasis was reported in 108 (68.3%) patients, and 46 individuals (29%) were born from consanguineous marriages. At the time of diagnosis, 32 patients (20%) had a urinary tract infection. Stones were predominantly situated in the upper urinary system in 129 patients (81.6%), with 123 (77.8%) having unilateral stones and 35 (22.2%) having bilateral stones. Calcium oxalate stones were the most commonly observed (80%) in patients who underwent stone analysis. Hypercalciuria emerged as the most frequently identified urinary metabolic risk factor. At the end of the follow-up period, 14 patients experienced a recurrence, while 67 patients remained free of stones. Conclusion: Urolithiasis continues to be a significant concern among children in our nation. Due to the higher recurrence rate and more frequent underlying metabolic disorders in children with stone diseases compared to adults, metabolic assessment and stone analysis are recommended procedures, emphasizing the need for lifelong monitoring in these cases.