Comparison of ultrasound-assisted and pure fluoroscopy-guided extracorporeal shockwave lithotripsy for renal stones
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RESEARCH ARTICLE
Open Access
Comparison of ultrasound‑assisted and pure fluoroscopy‑guided extracorporeal shockwave lithotripsy for renal stones Tsung‑Hsin Chang1*, Wun‑Rong Lin1,2, Wei‑Kung Tsai1,2, Pai‑Kai Chiang1,2, Marcelo Chen1,2,3, Jen‑Shu Tseng1* and Allen W. Chiu1,4
Abstract Background: In this study, we aimed to compare the efficacy and clinical outcomes of shock wave lithotripsy (SWL) for patients with renal stones using pure fluoroscopy (FS) or ultrasound-assisted (USa) localization with two lithotripters. Methods: We retrospectively identified 425 patients with renal calculi who underwent SWL with either a LiteMed LM-9200 ELMA lithotripter (209 cases), which combined ultrasound and fluoroscopic stone targeting or a Medispec EM-1000 lithotripter machine (216 cases), which used fluoroscopy for stone localization and tracking. The patient demographic data, stone-free rates, stone disintegration rates, retreatment rates and complication rates were analyzed. Results: The USa group had a significantly higher overall stone-free rate (43.6 vs. 28.2%, p
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