Introduction
Conservative, medical and surgical treatments are among the treatment
methods for stones in the urinary system, which bear importance in
urology practice. The primary goal in the treatment of kidney stones is
to provide a maximally stone-free rate (SFR) with minimal morbidity. The
treatment of kidney stones has changed significantly in the last 30
years. Treatment options now include percutaneous nephrolithotomy (PNL),
extracorporeal shock wave lithotripsy (SWL) and retrograde intrarenal
surgery (RIRS), which are less invasive than open
surgery.1
In recent years, the use of RIRS in the treatment of upper urinary tract
stones is on the rise all over the world. One of the most important
reasons for the frequent use of this method is the lower complication
rate of the method compared with that of PNL and its higher rate of
achieving a SFR compared with that of SWL. RIRS continues to be
increasingly used as there is an increase in the number of its
indications and as surgeons are gradually gaining more experience in
performing it.2
Complications associated with RIRS include urinary infection, bleeding,
subcapsular hematoma, ureteral injury, avulsion and ureteral stricture.
Infective complications are the most common among these and can even
become fatal in some cases.3 It has been reported that
stone scoring systems that predict the SFR after PNL can also predict
postoperative complications.4 However, to the best of
our knowledge, there is no study in literature evaluating the
relationship between the RIRS scoring systems and infective
complications after RIRS.
This study aimed to evaluate the relationship between infective
complications and success rate of RIRS and the Resorlu-Unsal Stone Score
(RUSS)5, Modified Seoul National University renal
stone complexity score (modified S-ReCS)6 and R.I.R.S
score.7