Abstract：Objective To compare the clinical effect of mini-percutaneous nephrolithotomy (Mini-PCNL) and retrograde intrarenal surgery (RIRS)in the treatment of renal calculi with a diameter of 1to 2 cm. Methods The clinical data on 72 patients admitted to the Department of Urology at our hospital between March 2015 and April 2017 was collected and equally divided into the Mini-PCNL group and RIRS group according to the surgical approach. The stone clearance rate, repeated treatment rate, complications, duration of surgery, postoperative analgesia, hemoglobin decrease,costs and hospital stay were compared between the two groups. Results The stone clearance rate of the Mini-PCNL group(94.44%) was significantly higher than that of the RIRS group (75.00%)(P<0.05). The Mini- PCNL group compared favorably with the RIRS group in terms of the repeated treatment rate ,duration of surgery, postoperative analgesia, hemoglobin decrease and treatment cost (P<0.05).The dosage of analgesics and levels of hemoglobin 24h postoperatively decreased more significantly in the Mini- PCNL group than in the RIRS group, and the difference was statistically significant (P<0.05).The hospital stay and rate of complications in the Mini-PCNL group were longer or higher than those of the RIRS group, but the difference was not statistically significant. Conclusions Mini-PCNL has a good clinical effect and requires short duration of surgery and low treatment costs when used to treat renal calculi with a diameter of 1 to 2 cm, which should be made more accessible.
Bandi G, Best S L, Nakada S Y. Current practice patterns in the management of upper urinary tract calculi in the north central United States[J] . J Endourol, 2008,22(10): 631-636.
[3]
Jackman S V, Docimo S G, Cadeddu J A, et al. The‘Mini-perc'technique: a less invasive alternative to percutaneous nephrolithotomy[J]. World J Urol, 1998,16:371-374.
[4]
Lahme S, Zimmermanns V, Hochmuth A, et al. Minimally invasive PCNL (Mini-perc). alternative treatment modality or replacement of conventional PCNL[J]. Urologe A, 2008,47:563-568.
[5]
Mishra S, Sharma R, Garg C, et al. Prospective comparative study of Miniperc and standard PNL for treatment of 1 to 2 cm size renal stone[J]. BJU Int, 2011,108: 896-899.
Chung B I, Aron M, Hegarty N J, et al. Ureteroscopic versus percutaneous treatment for medium-size (1- 2cm) renal calculi[J]. J Endourol, 2008,22: 343-346.
[9]
Ferroud V, Lapouge O, Dousseau A, et al. Flexible ureteroscopy and Mini percutaneous nephrolithotomy in the treatment of renal lithiasis ≤2 cm[J]. Prog Urol, 2011, 21: 79-84.
Egilmez T,Goren M. Predicting surgical outcome of percutaneous nephrolithotomy:validation of the guy,s stone score and nephrolithometricnomogram interms of success and complications [J].JCAM,2015,6(3):281-286.
2020, Vol. 31 
