Minimally Invasive Percutaneous Nephrolithotomy with Ultrasound Guidance for Treatment of Upper Urinary Calculi

Objective:To evaluate the clinical effect and explore the value of treatment of upperurinary calculi with minimally invasive percutaneous nephrolithotomy under the guidance by B-ultrasound. Methods:The clinicaldata of 128 cases with upper urinary lithiasis who underwent MPCNL were analyzed retrospectively. Results:90 cases presented stone free after the first MPCNL,19 after the second one,and 1 resorted to open surgery.The other 20 cases still had residual stones 2 months after operation,and after ESWL they were stone free.Mean operating time was 120min,meanamount of bleeding 80mL,mean hospital stay 8 days.The stone-free rate was 85.2%.There were no secondary postoperative bleeding,urine leakage,ureter or renal pelvis perforation,pneumothorax,abdominal organ damage and other complications. Conclusions:Less trauma,high success rate,safe and less complications are the merits of MPCNL with ultrasound guidance.It is an ideal method in the treatment of calculus in upper urinary and wort-hwhile to be widely used in clinical.