Category: Clinical Stones: Outcomes

MP13-7 - Primary Ureteroscopy: Access Denied

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

Introduction & Objective :

Primary ureteroscopy is an attractive option for the surgical management of renal and ureteric stones due to its efficiency. However, access can sometimes be an issue requiring an interim ureteric stent insertion and a second attempt to treat the stones endoscopically. We aim to define our access failure rate for primary ureteroscopy in the treatment of renal and ureteric stones.


Methods :

A retrospective data collection was carried on patients who underwent primary ureteroscopy for stones from January 2017 to December 2017. The procedures were performed by 5 different surgeons based at a district general hospital in England. We defined the primary outcome as access to the stone/s in an unstented ureter.


Results :

95 patients underwent primary ureteroscopy during the period of interest. We have an access failure of 17% (n=16). The most common cause of access failure was failure to progress at the distal ureter (n=7).  Access failure rate was higher for renal stones (21%) compared to ureteroscopies for ureteric stones (13%).


Conclusions :

We have an acceptable access failure rate of 17% for primary ureteroscopy at our unit. This will help us in the consenting process for patients undergoing primary ureteroscopy, providing them with a unit specific access failure rate.

Jasper Bondad

Specialty registrar
Peterborough City Hospital
Peterborough, England, United Kingdom

Motunrayo Williams

Foundation doctor
Peterborough City Hospital
Peterborough, England, United Kingdom

Christopher Dawson

Consultant Urologist
Peterborough City Hospital
Peterborough, England, United Kingdom