Comparison of Cyberwand dual probe lithotriptor and Swiss lithoclast master in ultrasonically guided percutaneous nephrolithotomy for renal staghorn calculi

Abstract

To evaluate and compare the efficiency and safety of Cyberwand dual probe lithotriptor and Swiss lithoclast master in percutaneous nephrolithotomy for renal staghorn calculi. A total of 138 patients with renal staghorn calculi were divided randomly into a Cyberwand dual probe lithotripter group (Group A, n=71) and a Swiss lithoclast master group(Group B, n=67). The data for operative time, blood loss volume, one-stage calculus clearance rate, hospitalization time, cost of hospitalization and complication in the two groups were collected and compared. The renal access was established successfully and the one-stage percutaneous nephrolithotomy (PCNL) was performed in the 2 groups. There was no significant difference in the size of stones, the age of patients and the complications between the 2 groups before the operations. Intraoperative gravel time in the Group A was significantly shorter than that in the Group B (77.14±21.39 vs 84.25±20.62, P=0.049). There was no significant difference in the one-staged stone clearance rate, blood loss volume in the operation between the 2 groups. The one-staged stone clearance rate in the 2 groups were 67.6% (48/71) and 70.1% (47/67) respectively, with no significant difference (P=0.854). Two lithotrities were safe and efficient for renal staghorn calculi. But comparing with Swiss lithoclast master, Cyberwand dual probe lithotriptor is more efficient and convenient.