[Clinical experiences of renal and upper ureter stone by extracorporeal shock wave lithotripsy (ESWL). II: 3-month follow-up of cases treated with ESWL].

Fifty three out of 60 cases treated with Extracorporeal Shock Wave Lithotripsy (ESWL), were followed up for 3 months. Forty four of the patients had renal stones (2 had bilateral renal stones, 3 had staghorn calculi, 2 had incomplete staghorn calculi, 10 had multiple renal stones), 2 had the unilateral renal and ureteral stones and 16 had ureteral stone. The stone had been discharged completely within 3 months in 47 cases (86.8%), and residual stones were noticed in 6 cases (11%), two of which had stone discharge after retreatment with ESWL. The other cases are being followed up without further treatment, because the residual sandy stones are thought to be able to be discharged spontaneously.