Abstract:Objective: To compare the effect of super-mini percutaneous nephrolithotomy(SMP)versus retrograde intrarenal surgery(RIRS)for lower pole renal calculi of less than 2cm. Methods: From January 2018 to October 2021, the clinical data of 73 patients with lower pole renal calculi less than 2cm treated with SMP and RIRS were collected. According to the surgical procedures,the patients were divided into SMP group (n=34) and RIRS group (n=39). The general and perioperative data were compared and analyzed. Results: The total hospitalization cost (20955 yuan) in SMP group was significantly less than that in RIRS group (27117 yuan) with the difference being statistically significant (P<0.05). The hemoglobin difference in SMP group [(10.5±8.0)g/L] was significantly greater than that in RIRS group [(6.7±7.1)g/L] (P<0.05).The stone-free rate at the 4th week end in SMP group (94%) was higher than that in RIRS group (72%), with the difference being statistically significant (P<0.05). Conclusion: SMP and RIRS are safe and effective in the treatment of lower pole renal calculi, and SMP has higher stone-free rate, less treatment cost and greater hemoglobin reduction after operation.
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