Multi-colour FISH on preoperative renal tumour biopsies to confirm the diagnosis of uncertain renal masses.

Purpose: In some cases with uncertain renal tumour lesions, it would be helpful to perform biopsies for the preoperative differential diagnosis. In our study, we evaluated the benefit of multi-colour interphase fluorescence in situ hybridization (M-FISH) on fine-needle core biopsies in uncertain renal masses.

Methods: We prospectively performed three ultrasound-guided percutaneous biopsies in 25 patients with indeterminate renal masses preoperatively.

Secondary signs of non-enhanced CT prior to laser ureterolithotripsy: is treatment outcome predictable?

Purpose: To correlate the presence of secondary signs of non-enhanced computed tomography (NECT) in renal units harboring ureteral calculi with intraoperative findings and treatment outcome after holmium:yttrium-aluminum-garnet laser (Ho:YAG) ureterolithotripsy.

Subjects And Methods: Two-hundred patients were prospectively included after ureteral calculi were detected on NECT. All patients underwent Ho:YAG ureterolithotripsy at the Medical University of Vienna.

Impact of stone size, location, composition, impaction, and hydronephrosis on the efficacy of holmium:YAG-laser ureterolithotripsy.

Objectives: The impact and outcome of holmium:YAG-laser (Ho:YAG) ureterolithotripsy in treating proximal and distal ureteral stones was investigated.

Methods: A total of 543 patients harbouring proximal (n=194) or distal (n=349) ureteral stones underwent semirigid Ho:YAG ureterolithotripsy. The degree of hydronephrosis; stone size, location, impaction, and composition; and complication and stone-free rates were recorded.

Rapid extracorporeal shock wave lithotripsy for proximal ureteral calculi in colic versus noncolic patients.

Objectives: In delayed extracorporeal shock wave lithotripsy (ESWL) treatment, increasing stone impaction is associated with delayed stone clearance. Whether colic patients treated by rapid ESWL have the same time to stone clearance as noncolic patients, which supports the thesis that stones in both groups are nonimpacted, has not been investigated yet, and was the objective of this study.

Methods: A total of 82 patients were prospectively enrolled and treated with piezoelectric ESWL for a solitary proximal ureteral stone.

Extracorporeal shock wave lithotripsy in the treatment of proximal ureteral stones: Does the presence and degree of hydronephrosis affect success?

Objectives: We investigated the relation between the presence and degree of stone induced hydronephrosis and the outcome of extracorporeal shock wave lithotripsy (SWL) in patients with solitary proximal ureteral stones.

Methods: 130 patients with or without hydronephrosis were treated with SWL. The degree of hydronephrosis was defined by renal ultrasound.