Clinical Analysis of B ultrasound-guided minimally invasive percutaneous nephrolithotomy for upper urinary tract stones

Objective To investigate the clinical effect of minimally invasive percutaneous renal lithotripsy (MPCNL) treatment of urinary tract stones. Methods From September 2006 to June 2009, 92 cases of patients with upper urinary tract calculi were performed ultrasound minimally invasive percutaneous nephrolithotomy down lithotomy. After operation,double-J ureteral were placed inside the tube and all patients were followed up for 1 ~ 3 months. Results 92 patients in the treatment of MPCNL were taken stones at one time and stone clearance rate was 84.5%; the operative time was (82.2 ± 10.8) min; the blood loss was (102 ± 18.6) ml; intraoperative blood transfusion in 2 cases (2.2%), surgery complicated with bleeding in 1 case (1.1%),After blood transfusion, cured in the treatment of open surgery; hospital stay (5.8 ± 1.2) d; urine turned clear and the time (2.7 ± 1.0) d; postoperative infection in 6 cases (6.5%).There were different degrees of residual stones in 14 cases(15.28%), of which 9 cases (9.8%) underwent secondary stone taking, 2 cases (2.2%) had to undergo the third time, 3 cases (3.3%) underwent extracorporeal shock wave lithotripsy. Conclusion Ultrasound-guided treatment of urinary tract stones down MPCNL with trauma is efficient and safe, rapid postoperative recovery and fewer complications, it’s worthy to be popularized.