Category: Clinical Stones: Outcomes

MP13-8 - Does success rate decrease in the presence of renal anomalies in the treatment of shockwave lithotripsy with second or third generation lithotripter

Fri, Sep 21
2:00 PM - 4:00 PM

Introduction & Objective :

To compare the success rates of second and third generation lithotripter in patient with renal anomalies for urolithiasis.

Methods : A total of 1664 patients who underwent SWL with Lithostar and 840 patients who underwent SWL with Lithoskop in our department were retrospectively analyzed. Patients were divided as patients with renal anomaly and patients without renal anomaly. Success was determined as stone free and failure was determined as residual stone. The data were retrospectively analyzed to determine change in success rates in patients with renal anomalies.

Results : Renal anomaly was present in 28 of 1664 (1.6%) patients for patients who underwent second generation lithotripter and 24 of 840 (2.8%) patients for third generation lithotripter. The total success rates of both lithotripters were determined as 82% and 69%, respectively (p<0.001). Success rates were decreased to 64.2% and 58.3% (p<0.001), for both lithotripters, respectively in patients with renal anomalies. The decrease rates were 21.7% for second generation lithotripter and 15.5% for third generation lithotripter. The decrease in success rate was more significant in second generation lithotripter (p<0.001).

Conclusions : ESWL is feasible and effective for treatment of urolithiasis in patients with renal anomalies. However, presence of renal anomaly is an important factor leading to a decrease in success rate. This decrease rate was found to be significantly higher in second generation lithotripter.

Cetin Demirdag

Cerrahpasa School of Medicine, Department of Urology
Istanbul, Istanbul, Turkey

Emre Bülbül

University of Istanbul-Cerrahpasa
İSTANBUL, Istanbul, Turkey

Sinharip Citgez,M.D Department of Urology University of İstanbul-Cerrahpaşa,Cerrahpaşa Medical Faculty, İstanbul/Turkey

Fatih Simsekoglu

Istanbul, Istanbul, Turkey