percutaneous nephrolithotomy (pnl) is commonly used to treat patients with complex renal calculi. placing a nephrostomy tube is the last step after completing pnl. significant early postoperative discomfort after percutaneous procedure is usually secondary to nephrostomy tubes. the goal of this study is to evaluate the safety of tubeless pnl. a total of 45 patients with mean age of 46.6 years e...

cyproterone acetate (ca) has been loaded to liposome by solvent evaporation and thin film formation technique. the effects of some formulation variables such as temperature of organic solvent evaporation, rotary evaporator speed, volume of organic solvent, volume of balloon and temperature of hydrating buffer has been evaluated. the data showed that bigger balloon with higher surface area has b...

The aim of the present study was to investigate whether and by which mechanism; histamine can induce state-dependent retrieval of passive avoidance task. The pre-training or pre-test intracerebroventricular (i.c.v.) injection of histamine (20µg/mouse) impaired retrieval, when it was tested 24 h later. In the animals, which retrieval was impaired due to histamine pre-training administration, pre...

Embolization is a rare but serious complication of venous central catheters in pediatric oncology. The reported cases in the literature are due in common to catheter ruptures. The most common cause is constant compression of the costoclavicular arch, known as "pinch-off" syndrome. We report a seven-year-old boy in whom embolization occurred as a late complication. Difficulty in the dissection o...

A 42-year-old woman with a history of breast cancer and hepatic metastatic disease underwent insertion of an implantable venous access catheter into the right subclavian vein (Seldinger technique). After eight months of treatment it was decided to remove the catheter due to reported possible thrombosis and obstruction. The patient was totally asymptomatic. A preoperative chest X-ray was consist...

background ureteral stents are widely used in many urologic practices. however, stents can cause significant complications including migration, fragmentation, and encrustation and it may possibly be forgotten. successful management of a retained, encrusted stent requires combined endourological approaches. objectives to present our experience with the approaches for treating forgotten ureteral ...

the aim of the present study was to investigate whether and by which mechanism; histamine can induce state-dependent retrieval of passive avoidance task. the pre-training or pre-test intracerebroventricular (i.c.v.) injection of histamine (20µg/mouse) impaired retrieval, when it was tested 24 h later. in the animals, which retrieval was impaired due to histamine pre-training administration, pre...