Clinical Application Study of Super-Mini Percutaneous Nephrolithotomy in the Treatment of Kidney Stones

Objective:To observe the clinical efficacy and complication rates of different stone fragmentation techniques in the treatment of kidney stones.Methods:This study selected 100 patients with urinary stones treated at the Third Division General Hospital from 2021 to November 2023 as subjects.The control group(n=50)received conventional percutaneous nephrolithotomy(PCNL)for stone fragmentation,while the research group(n=50)received super-mini percutaneous nephrolithotomy(SMP)treatment.Surgical parameters,stone clearance rates,recurrence rates,and complication rates were compared between the two groups.Results:After treatment,the surgical parameters in the research group were significantly better than those in the control group.The research group had a higher stone clearance rate and lower rates of stone recurrence and complications(P<0.05).Conclusion:Compared with conventional PCNL,SMP shows better clinical outcomes for patients with kidney stones.It improves surgical parameters,increases stone clearance rates,and reduces both stone recurrence and complication rates,making it a valuable technique for clinical reference.

The clinical outcomes of laser with suction device in mini-percutaneous nephrolithotomy

Objective:To evaluate the safety,efficacy and feasibility of laser with suction device in mini-percutaneous nephrolithotomy(mini-PCNL).Methods:A retrospective study was conducted including 200 patients who underwent mini-PCNL for renal stones.All patients underwent PCNL using Electro-Medical Systems laser.In addition to the laser in 100 patients,a suction device was used(laser with suction[LWS]).In the other 100,suction device was not used(laser with no additional suction[LOS]).Mini-PCNL was performed using standard technique and Karl Storz minimally invasive PCNL-medium system was used.Primary end point was stone clearance.Results:Both the groups were comparable in terms of demographic data.Mean stone size was 15.24±5.90 mm and 16.16±5.53 mm in LWS and LOS,respectively.Mean Hounsfield unit of stone was 1285.64 and 1206.79 in LWS and LOS,respectively.Operative time was less in LWS group(56.89±19.65 min)as compared to LOS(62.01±28.81 min).At one-month follow-up,radiological complete clearance was 96%in LWS and 92%in LOS.On subgroup analysis of stones larger than 18 mm,the clearance rate was in favour of LWS(85.7%vs.100%)and also the need for nephrostomy placement was less in LWS group.Conclusions:LWS device is safe and efficacious when used with mini-PCNL.For stones greater than 18 mm,it has a better stone free rate as compared to using no suction.