Application of patented sheath to minimally invasive percutaneous nephrolithotomy for patients with upper urinary tract calculi associated with ipsilateral simple cyst
Abstract: Objective To evaluate the efficacy and safety of invasive percutaneous nephrolithotomy using patented sheath in treating upper urinary tract calculi associated with ipsilateral simple renal cyst. Methods We retrospectively analyzed 198 patients from May 2012 to August 2009 who underwent percutaneous nephrolithotomy using patented sheath under ultrasound guidance for upper urinary tract calculi with simple renal cyst. Then analyze the clinical data of patients, evaluate the therapeutic effect of the surgical procedure. Results The percutaneous renal access was successfully established in 36 patients and immediate lithotripsy was performed, single tract was used in 30 cases, double tract were used in 6 cases. The mean operating time was (68.5 ± 5.3) min, 3 cases patients had high fever after surgery, which were cured after symptomatic treatment, 2 cases of staghorn calculi underwent two-stage operation, 1 cases underwent hyper-selective angio embolization for bleeding control. Conclusion The treatment of upper urinary tract calculi with simple renal cyst by percutaneous nephrolithotomy using patented sheath appears to be safe and efficacious.