Retrograde intrarenal surgery for lower pole stones utilizing stone displacement technique yields excellent results.

Objective: To evaluate the long-term stone-free rate (SFR) of retrograde intra-renal surgery (RIRS) in the treatment of lower pole renal calculi using only basket relocation and identify independent predictors of stone-free status.

Methods: All consecutive patients undergoing RIRS lower pole renal calculi at a single high-volume tertiary center were analyzed retrospectively. Lower pole stones were relocated to the upper pole, where laser lithotripsy was performed.

Post-operative pain following percutaneous nephrolithotripsy- clinical correlates.

Objectives: Management of postoperative pain following percutaneous nephrolithotripsy (PCNL) is a significant goal. We sought to identify risk factors and clinical correlates of postoperative pain in order to improve perioperative management and patient satisfaction.

Materials And Methods: A single-center, retrospective analysis, from a prospectively maintained database, of all consecutive patients who underwent PCNL for renal calculi between January 2011 and August 2018.

Interpreting the results of chemical stone analysis in the era of modern stone analysis techniques.

Introduction And Objective: Stone analysis should be performed in all first-time stone formers. The preferred analytical procedures are Fourier-transform infrared spectroscopy (FT-IR) or X-ray diffraction (XRD). However, due to limited resources, chemical analysis (CA) is still in use throughout the world.

Oncologic results of nephron sparing endoscopic approach for upper tract low grade transitional cell carcinoma in comparison to nephroureterectomy - a case control study.

Background: There is paucity of data as to the results of the endoscopic approach in comparison to the golden standard of nephro-ureterectomy in elective, low grade TCC, patients. Our purpose is to report our results of a nephron sparing approach compared to nephro-ureterectomy in those patients.

Methods: From a retrospective data base we identified 25 patients and 23 patients who underwent a nephron sparing ureterosocpic resection and nephro-reterectomy for low grade UT-TCC, respectively.

The impact of retrograde intrarenal surgery for asymptomatic renal stones in patients undergoing ureteroscopy for a symptomatic ureteral stone.

Background And Purpose: In the era of rigid ureteroscopy (URS) for ureteral stones, asymptomatic renal stones were often left in place. With the advent of flexible URS, however, the treatment of such renal stones became an attractive option. Data are scarce regarding the impact of retrograde intrarenal surgery (RIRS) performed at the time of URS for a symptomatic ureteral stone in comparison with ureteral stone removal alone.

Retrograde endoureterotomy for persistent ureterovesical anastomotic strictures in renal transplant kidneys after failed antegrade balloon dilation.

Objective: To evaluate the long-term outcomes and complications of retrograde endoureterotomy for persistent ureterovesical anastomotic strictures in renal transplant patients after percutaneous balloon dilation failure.

Methods: From January 2000 to May 2010, 26 (2.6%) of 1004 renal transplant patients developed ureterovesical anastomotic stricture after surgery.

Holmium laser endoureterotomy for benign ureteral stricture: a single center experience.

Purpose: We assessed the long-term outcome of laser endoureterotomy for benign ureteral stricture.

Materials And Methods: From a database of 69 patients who underwent retrograde laser endoureterotomy from October 2001 to June 2007 we identified 35 with a benign ureteral stricture. Clinical characteristics, operative results and functional outcomes were investigated.

Expanding use of ureteral access sheath for stones larger than access sheath's internal diameter.

The internal diameter of the ureteral access sheath limits the size of stones that can be removed during flexible ureteroscopy. We describe a technique that allows removal of larger stones, which are entrapped and removed en bloc with the access sheath. This new technique was shown to be efficient and safe.

Incidental testicular tumors in infertile men.

Objective: To characterize the population of infertile men with an incidental finding of testicular tumor diagnosed during infertility work-up and to describe their unique presentation and pathological findings.

Design: Retrospective study of 11 men in whom a testicular tumor was incidentally diagnosed during evaluation for infertility out of 150 patients who underwent orchiectomy over a 10-year period (1992 to 2002).

Setting: University-affiliated urologic referral center.