V01-08: Micro-ureterosocopy as a strategy for management of pelvic ureteral stones in children

Video

INTRODUCTION

During the last years there has been an effort in miniaturizing the endoscopic devices. The video presents an alternative for the management of distal ureteral stone, using a ureteral access of 4.85Fr and 27cm of length, previously described as micro-ureteroscopy.

METHODS

This procedure was performed through a 3-part all-seeing needle, consisting of micro-optics 0.9mm in diameter with a 120-degree angle of view, an irrigation channel and an integrated light.

RESULTS

Seven year-old boy, with history of preterm birth (29 weeks) was referred to our consultation complaining of left back pain and an elevation of serum creatinine. The renal ultrasound revealed a left ureterohydronephrosis, caused by a 10mm stone located 13mm from the ureterovesical junction. The patient underwent a micro-ureteroscopy with laser lithotripsy. The stone was fragmented with an average energy of 0.5J with 12Hz of frequency. The total energy spent was 12514J. At the end of the procedure, a double J stent was placed. The procedure lasted 45 minutes and was uneventful. The patient was discharged 24h after the procedure without complaints and remained stone free.

CONCLUSION

Micro-ureteroscopy is a safe and effective technique in distal ureteral lithiasis treatment in children. The small dimensions of the equipment increase the safety of the procedure making this a good option for the treatment of ureteral stones in children.

Funding: none