OUTCOME OF EXTRACORPOREAL SHOCK WAVE LITHOTRIPSY IN STONE CLEARANCE WITH AND WITHOUT DJS

We prospectively see the outcome of extracorporeal shock wave lithotripsy in patients with renal and proximal ureteral calculi upto2 cm and 1cm respectively in size with and without djs insitue who were treated at our lithotripsy center.Patients were placed before lithotripsy treatment were subjected to higher levels of total power 3000 shocks (shocks times voltage), yet the rate free of stones did not differ from those treated without a stent. In addition, the patients with internal ureteral stents experienced a significantly higher incidence of lower urinary tract symptoms. Urinary urgency (43 versus 25 per cent) and hematuria (40 versus 23 per cent), Suprapubic discomfort than nonstented patients, respectively. The results suggest that use of an indwelling ureteral stent may not contribute to a higher rate free of stones
for the treatment of small to medium sized renal calculi and in fact it may decrease the auxiliary treatment like PCN and DJS at the cost of significant of LUTS. Of course in selected cases (solitary kidney, large stone burden and aid in stone localization) ureteral stenting has a useful adjunctive role in extracorporeal shock wave lithotripsy.
Key words: ESWL, DJS, Hydronephrosis, Stainstrass