To evaluate the efficacy of RIRS in patients with
lower pole renal stones of <2.5cm.
This Descriptive Case Series was conducted at
Urology Department, Galway University Hospital,
Galway, Republic of Ireland from 1st January 2018 to
31st December 2018. Total 75 patients with lower pole
renal calculi of <2.5 cm in size were included. RIRS was
done after completion of all investigations. All patients
were given prophylactic antibiotics. Stone free rate 4
month post-operatively was assessed. The stone free
rate at the end of 4th month was the endpoint of this
study. The collected information was analysed by using
SPSS 23. Frequencies and percentages were calculated
for qualitative data like efficacy and gender. Mean and
SD were calculated for quantitative data like age.
Stratification was used for gender, age and stone size to
investigate modifiers effects. In post stratification Chi-
Square test was used at p value < 0.05 (significant).
Total 75 patients with renal calculi were enrolled.
Among these patients, 45(60%) were males, while
30(40%) were females. Age range in this study was from
18 to 65 years with mean age of 42.11±13.55 years.
Mean size of the stone was 1.22±0.15. Most of the
patients 52(69.33%) had the size of stone <1.25 cm,
while 23(30.67%) patients had the size of stone >1.25
cm. Overall success rate with RIRS was 88.0% in
patients with lower pole renal calculi.
The technique (RIRS) are safe and effective for
stones, with best success rate, low morbidity and proper
duration of operation.
Keywords : Retrograde Intra Renal Surgery (RIRS), Lower Pole Renal Calculi.