ABSTRACT
Objective To explore the safety and efficacy of ultrasound-guided minimally invasive percutaneous nephrolithotomy(mini-PCNL) for the patients with complicated upper ureteral calculus.Methods The clinical data of 28 patients with complicated upper ureteral calculus was retrospectively analyzed,all of the patients had undergone ultrasound-guided mini-PCNL.The parameters included operative time,the stone-free rate,theretention time of nephrostomy tube,the average postoperative hospital stay and the complications.Results In all the 28 case,the 16F nephrostomy tract was established and the calculus were cleared successfully in one stage.The average operative time was 40 minutes,the average estimmate intraoperative blood loss was 60ml.The stone-free rate was 100％ according to the ultrasonography or KUB after the surgery.There were no complications such as bleeding,the damage to pleura or intestines.Conclusion As the preferred treatment of complicated upper ureteral calculus,ultrasound-guided miniPCNL is a safe and effective procedure.