scholarly journals Peer Review #2 of "A retrospective study comparing super-mini percutaneous nephrolithotomy and flexible ureteroscopy for the treatment of 20–30 mm renal stones in obese patients (v0.1)"

2020 ◽  
Keyword(s):  
Retrospective Study ◽  
Peer Review ◽  
Percutaneous Nephrolithotomy ◽  
Renal Stones ◽  
Flexible Ureteroscopy ◽  
Obese Patients

scholarly journals A retrospective study comparing super-mini percutaneous nephrolithotomy and flexible ureteroscopy for the treatment of 20–30 mm renal stones in obese patients

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8532
Author(s):  
Chen Xu ◽  
Rijin Song ◽  
Pei Lu ◽  
Minjun Jiang ◽  
Guohua Zeng ◽  
...  
Keyword(s):  
Percutaneous Nephrolithotomy ◽  
Demographic Data ◽  
Operation Time ◽  
Renal Stones ◽  
Flexible Ureteroscopy ◽  
Complication Rates ◽  
Obese Patients ◽  
Lower Complication ◽  
Lower Complication Rate ◽  
Stone Characteristics

Objective This study aimed to compare the efficacy and safety of Super-mini percutaneous nephrolithotomy (SMP) and flexible ureteroscopy (F-URS) in the treatment of 20–30 mm renal stones in obese patients. Methods We conducted a retrospective analysis of outcomes of patients who underwent SMP and F-URS to treat 20–30 mm renal stones from August 2017 to September 2018. Patients with BMI >30 kg/m2 were enrolled into this study. Forty-eight patients underwent SMP, while 104 patients underwent F-URS by the same surgeon. The patients’ demographic data, stone characteristics, perioperative parameters and outcomes, complications, stone-free rate (SFR) and overall costs were retrospectively assessed. Results No significant differences were found between the two groups in terms of age, gender, BMI, operation side, stone size, number, locations, stone compositions and CT value. The mean operation time was significantly shorter in the SMP group (p < 0.001), while the F-URS group had significantly shorter postoperative stays (p < 0.001) and lower complication rates (p < 0.001). Both groups had similar SFR at a 3-month follow-up (p = 0.190), while the SMP group achieved significant higher SFR 3 days after the operation (p < 0.001). The SMP group had a significantly lower overall cost and fewer stage-2 procedures than the F-URS group. Conclusion SMP and F-URS are equally effective in obese patients with 20–30 mm renal stones. However, F-URS offers the advantage of a lower complication rate, while SMP performed better in terms of operation time, tubeless rate, stage-2 procedures and overall costs.

scholarly journals Providing Several Skills to Treat Complex Infectious Stones of Solitary Kidney in a Patient Failed to Undergo Percutaneous Nephrolithotomy: A Case Report

2021 ◽  
Vol 8 ◽  
Author(s):  
Dechao Feng ◽  
Wuran Wei
Keyword(s):  
Cost Effectiveness ◽  
Percutaneous Nephrolithotomy ◽  
Renal Stones ◽  
Solitary Kidney ◽  
Laser Lithotripsy ◽  
High Frequency Oscillation ◽  
Flexible Ureteroscopy ◽  
Renal Deterioration ◽  
Holmium Laser Lithotripsy ◽  
Staghorn Stones

Conservative treatment is closely associated with renal deterioration for patients with renal staghorn stones. It is well-recognized that percutaneous nephrolithotomy (PCNL) is recommended as the first-line treatment of renal stones larger than 2 cm due to its higher stone clearance and cost-effectiveness when compared with other treatment alternatives, such as shockwave lithotripsy and flexible ureteroscopy (FURS). Besides, our findings indicated that miniaturized PCNL could be served as an alternative to PCNL with a higher stone-free rate and a lower hemorrhage risk. Despite the higher cost-effectiveness of PCNL, the management of staghorn stones are still controversial in some special situations, such as a solitary kidney. Herein, we present a case with complex infectious stones of a right-sided solitary kidney, complaining of persistent pain in the right waist. The rarity of this case is that it is difficult to encounter these cotton-like staghorn stones which are clinically resistant to holmium laser lithotripsy, and the particularity is that the patient with solitary kidney failed to undergo PCNL. We found that the combination of intermittently high-frequency oscillation and flexible ureteroscopy forceps might contribute to treat the complex infectious stones in a patient with solitary kidney. Our surgical experience might be beneficial to such patients undergoing flexible ureteroscopy in clinical practice.

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