Abstract
Calcular fragments (residuals) left behind after initial therapy of stone may grow with time, especially in patients with metabolically active stone disease [1]. Each fragment can become a nidus for a new stone [1] which grows in size by as much as 25% over two years [2]. Many so-called recurrences, especially those seen soon after extracorporeal shock wave lithotripsy (ESWL), may be due to growth of residuals which had not been detected on post-treatment X-rays. Observed ‘recurrent stone’ formation is three times more common when a residual stone is present and the higher rate of recurrence seen in patients with multiple stones (16% vs. 5% in simple stones) may result from the more frequent residuals left in such patients. Residuals encourage recurrent urinary tract infection (UTI), when they occur in patients with pretreatment UTI and consequently new stone formation.
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Talati, J. (1997). The residual calcular fragment: A risk factor for recurrent stone disease. In: Talati, J., Sutton, R.A.L., Moazam, F., Ahmed, M. (eds) The Management of Lithiasis. Developments in Nephrology, vol 38. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5396-6_41
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DOI: https://doi.org/10.1007/978-94-011-5396-6_41
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