Comparative Study of Flexible Ureteroscope,Super-mini Percutaneous Nephrolithotomy,and Minimally Invasive Percutaneous Nephrolithotomy in the Treatment of Lower Calyceal Calculi
Objective To compare the therapeutic effects of flexible ureteroscope(FURS),super-mini percutaneous nephrolithotomy(SMP),and microstomy percutaneous nephrolithotomy(MPCNL)in the treatment of 2-3 cm lower calyceal calculi.Methods Clinical data of 209 patients with 2-3 cm lower calyceal calculi in our hospital from January 2017 to September 2022 were retrospectively analyzed.Among them,65 patients were treated with Olympus electronic FURS(FURS group),62 patients were treated with SMP for stone removal(SMP group),and 82 patients were treated with MPCNL(MPCNL group).The one-session stone-free rate(SFR),operation time,hemoglobin decrease at postoperation immediately,rate of postoperative delayed bleeding,postoperative hospital stay,postoperative fever,and hospitalization cost were compared between the three groups.Results There were significant differences in operation time,postoperative hospital stay,hospitalization costs and one-session SFR among the three groups(P<0.05).The one-session SFR in the MPCNL group(89.0%,73/82)was significantly higher than that in the FURS group(72.3%,47/65;P =0.009).The operation time in the MPCNL group was(38.8±7.6)min,significantly shorter than that in the FURS group[(52.3±7.2)min,P =0.000]and the SMP group[(47.5±7.8)min,P =0.001].The hemoglobin decrease at postoperation immediately in the FURS group was(1.5±0.5)g/L,significantly lower than that in the SMP group[(5.0±1.6)g/L,P = 0.000]and MPCNL group[(6.3±1.8)g/L,P =0.000].The postoperative hospital stay in the FURS group was(2.2±0.5)d,significantly shorter than that in the SMP group[(3.5±0.8)d,P =0.000]and the MPCNL group[(5.3±1.4)d,P =0.000].The hospitalization cost of the FURS group was(22 543.4±1600.4)yuan,significantly lower than that of the SMP group[(26 837.7±2003.9)yuan,P =0.000]and the MPCNL group[(26 784.4±2086.9)yuan,P =0.000],but there was no significant difference between the SMP group and the MPCNL group(P =0.869).There was no significant difference in the incidence of postoperative fever among the three groups(χ2 = 0.462,P = 0.784).Conclusions FURS,SMP,and MPCNL are all effective methods for the treatment of 2-3 cm lower calyceal calculi.FURS has the least intraoperative bleeding,the shortest hospital stay,the lowest hospitalization cost,the lowest one-session stone-free rate,and the longest operation time.MPCNL has the shortest operation time,the highest one-session SFR,the most intraoperative bleeding,and the longest hospital stay.
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