alexa Comparison of endoscopic and radiological residual fragment rate following percutaneous nephrolithotripsy.


Medical & Surgical Urology

Author(s): Denstedt JD, Clayman RV, Picus DD

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Abstract The stone-free rate after extracorporeal shock wave lithotripsy (ESWL) is primarily determined by a plain abdominal radiograph alone. However, the accuracy of that assessment can be challenged by renal tomography and flexible nephroscopy. We report on 29 patients with large renal calculi treated with a combination of percutaneous nephrolithotripsy and ESWL. Stone-free rates were determined by plain abdominal radiograph, renal tomography and flexible nephroscopy. The plain abdominal radiograph and renal tomography overestimated stone-free rates by 35\% and 17\%, respectively, compared to flexible nephroscopy. To determine stone-free rates after ESWL renal tomography is superior to a plain abdominal radiograph alone. Also, among patients with large renal calculi the use of the flexible nephroscope markedly improves the stone-free rate.
This article was published in J Urol and referenced in Medical & Surgical Urology

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