Minimal Invasive Percutaneous Nephrolithotomy for Impacted Upper Ureteral Calculi.

Objective:To investigate the effect of the minimal invasive percutaneous nephrolithotomy(mPCNL) in the treatment of impacted upper ureteral calculi.Methods:A total of 102 patients diagnosedas impacted upper ureteral calculi were received mPCNL under B-type ultrasound or X-ray guidance.2patients for pyuria were established the renal access keeping tube and anti-inflammatory treatment for secondary operation.Vital signs,ultrasonic inspection and kindey ureter bladder(KUB)were done postoperation and follow-up.Results:100 patients of mPCNL were successful by pneumatic power or holmium laser.Operating time was 55-75 min.Gravel time was 15-35 min.There was no abdominal organs damage,no pyelonephritis perforation,no ureter damage and without hemorrhage intraoperative and postoperative complications.The clearance rate of stone was 91.1 %(93/102)after mPCNL in 2 days by KUB,Whereas 100 %(102/102) in 1 month.9 patients were performed ESWL postoperation for residual stones.Conclusion:mPCNL is regarded as a minimally invasive,faster recovery and high clearance rate for impacted upper ureteral calculi,which is worthy of clinical application.