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  • Title: [Clinical results of extracorporeal shock wave lithotripsy for upper urinary tract stone using Siemens Lithostar2].
    Author: Matsuda J, Bessho H, Kamizuru M, Terada T.
    Journal: Hinyokika Kiyo; 1997 Jul; 43(7):467-70. PubMed ID: 9282290.
    Abstract:
    Between May 1994 and March 1996, a total of 427 cases of upper urinary tract stones were treated by extracorporeal shock wave lithotripsy (ESWL) using a Siemens Lithostar2. Of 427 patients, 167 had renal stones and 260 had ureteral calculi. A double J stent was inserted preoperatively for patients with stones > or = 20 mm in diameter. The success rate after 3 months, defined as complete disappearance of stone or partial disintegration with residual stones < or = 4 mm in diameter, was 82.4% and 88.1% for the renal and ureteral calculi, respectively. Additional treatments were required in 9 cases (transurethral ureterolithotripsy in 5, percutaneous nephrostomy in 2, nephrolithotripsy and ureterolithotomy in 1 each). There were no serious side effects requiring surgical treatment or blood transfusion, although perirenal hematoma developed in 5 patients, who were treated conservatively. It is concluded that ESWL using Simens Lithostar 2 is safe and useful for treating upper urinary tract stones.
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