Abstract
The aim: To study the violations of bone density indices in patients with kidney calculi. Materials and methods: 175 children with different types of kidney calculi were examined and treated in Ivano-Frankivsk Regional Children’s Consultative Polyclinics and Hospital, from 2016 to 2019 inclusively. Comprehensive metabolic panel involved by means of generally accepted biochemical methods. Sonography of the urinary tract was carried out. Voiding cystourethrography and excretory urography were performed. Bone mineral density was evaluated by means of ultrasonic densitometry. Statistical processing of the obtained data was carried out according to standard methods of variation statistics. Results: In patients with kidney calculi, oxaluria and oxalate-calcium nephropathy (60.0% and 30.0%, p <0.05) occurred most frequently. Signs of syndrome of undifferentiated connective tissue dysplasia - postural malformation (50.0%), thoracic kyphosis (25.0%), and stigmas of dysembryogenesis (25.0%) were noticed. In the majority of children with oxalate-calcium nephropathy, levels of the bone alkaline and acid phosphatase isoenzymes in a blood serum were significantly high, indicating severity of the resorption and disorders in development of the bone tissue. In these children, decreased fraction of ionized calcium, hypomagniemia and hypophosphatemia were observed. Conclusions: Children with oxalate-calcium nephropathy are in group of risk for osteopenic syndrome.
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