Clinical experience of treating secondary stones around the stranded Double-J ureteral catheter stent: a report of 12 cases

Objective To explore the clinical experience of treating secondary stones around the stranded Double-J ureteral catheter stent. Methods A retrospective analysis of clinical data which were 12 cases of secondary stones around the stranded Double-J ureteral catheter stent from January 2010 to January 2016, so as to sum up the experiences of treatment and prevention measures. Results In all 12 cases, the stranded Double-J ureteral catheter stents were removed successfully, and the secondary calculi were successfully shattered. After 3 days of the surgery, abdominal plain film or urinary color ultrasonic observed that the diameters of all residual stones were less than 2 mm.Because of kidney empyema, 1 patient underwent the second phase PCNL surgery to remove residual calculi and Double-J tubes.After 1 month, the residual stones were completely discharged.The success rate of drawing tube and the stone clearance rate were both 100%.The average operation time was 35~128(64.0±4.3)min.After the operation, no complications occurred. Conclusions Combination of rigid ureteroscope , fexible ureteroscope lithotripsy and percutaneous nephrolithotomy for the secondary stones around the tranded Double-J ureteral catheter stent, which has advantages of little injury, high rate of the drawing tube and stone clearance. Key words: Ureteral Calculi; Ureteroscopes; Nephrostomy, Percutaneous