Ultrasound-guided minimally invasive percutaneous nephrolithotomy in flank position for management of complex renal calculi.

Objectives: To evaluate the safety and efficacy of performing ultrasound-guided minimally invasive percutaneous nephrolithotomy (MPCNL) in the flank position for the management of complex renal calculi. Percutaneous nephrolithotomy is usually performed with the patient in the prone position under fluoroscopic guidance; however, this position, and guidance method have some limitations.

Methods: From January 2007 to December 2009, 93 patients (101 kidneys) with complex renal calculi underwent ultrasound-guided MPCNL in the flank position.

[Effects of irrigating fluid absorption in percutaneous nephrolithotripsy].

Objective: To determine the hemodynamic status, fluid-electrolyte changes and complications associated with irrigation time in percutaneous nephrolithotripsy.

Methods: A total of 68 renal calculi patients (31 males and 37 females) were recruited. The lateral recumbent percutaneous nephrolithotripsy was operated with Ho laser under ultrasonic guidance.

[Optimization of extracting method and inhibitory action of recombinant human endostatin in bladder cancer].

Objective: To explore the optimal method for protein expression in rhES (recombinant human endostatin) and study the anti-tumor activities of rhES in solid tumor and established cell line.

Methods: Different IPTG concentrations, the timing of adding IPTG into the culture medium and the different time of expression were employed to explore the optimized conditions of protein expression. Activity examination: (1) animal experiment: nude mice bearing subcutaneous cancer in treated group and controlled group were observed.

[Treatment of ureteral obstruction by holmium: YAG laser endoureterotomy: a report of 18 cases].

Objective: To investigate the clinical value and safety of holmium: YAG laser endoureterotomy in the treatment of ureteral obstruction.

Methods: Holmium: YAG laser endoureterotomy, with the laser optic fiber 550 microm in diameter and the output power of 3.5 Watt, via ureteroscopy, was performed on 18 patients ureteral obstruction, 8 males and 10 females, aged 52.