The Role of Routine Ureteral Stenting Following Uncomplicated Ureteroscopic Treatment for Upper Ureteral and Renal Stones: A Randomized Control Trial.

Ureteral stenting following uncomplicated ureteroscopy (URS) is common practice. Several studies have proven the safety of omitting routine stent placement following distal ureteral stone treatment. However, there is a paucity of data regarding the utility of stent placement for proximal URS.

Semi-rigid ureteroscope as a dilator in renal stone ureteroscopic treatment.

Introduction: To determine the efficacy and safety of using the semi-rigid ureteroscope as the only ureteral dilator for primary ureteroscopy (URS) in the treatment of renal stones.

Materials And Methods: A retrospective review of primary URS for renal stone disease was performed on consecutive patients treated by a single provider from 2013 to 2017. Utilizing wire placement under fluoroscopic guidance and direct visual ureteroscopic dilation with a semi-rigid ureteroscope, primary outcome was successful completion of stone treatment.

Duration of Ureteral Stenting Following Ureteroscopic Perforation in a Porcine Model.

Ureteroscopic ureteral perforations have been reported in up to 6% of cases, with recent studies suggesting a decline to less than 2%. Ureteroscopic perforations are managed with prolonged ureteral stenting of up to 6 weeks based on historical data. We sought to evaluate the time of urothelial healing and duration of ureteral stenting following a ureteroscopic perforation in a porcine model.

Robot-Assisted Laparoscopic Renal Schwannoma Excision.

To report the first case of a renal schwannoma excised with robot-assisted laparoscopy. A 43-year-old Caucasian female patient with vague abdominal symptoms was noted to have incidental right renal mass. Physical examination and laboratory tests were within normal limits.

Tumor enucleation vs sharp excision in minimally invasive partial nephrectomy: technical benefit without impact on functional or oncologic outcomes.

Objective: To present the benefits and utility of tumor enucleation as an alternative technique to sharp excision during minimally invasive partial nephrectomy (MIPN).

Methods: We retrospectively compared enucleation and sharp excision during MIPN, with the aim of determining benefits and limitations of enucleation in this setting.

Results: Among 602 patients undergoing MIPN at our institution, 86 and 516 underwent enucleation and sharp excision, respectively, as determined by the surgeon.

Histotripsy effects on the bladder trigone: functional and histologic consequences in the canine model.

Background: Histotripsy is an extracorporeal therapeutic ultrasound (US) technology, where high-amplitude acoustic energy is applied to targeted tissue. Previous research has demonstrated the feasibility, safety, and effectiveness of histotripsy tissue homogenization and debulking of the prostate in the canine model. Before translating this technology for human use, it is prudent to examine the susceptibility of critical periprostatic structures to cavitation injury in the event of histotripsy mistargeting.

Determination of renal hypothermic temperature adequacy for renoprotection during ischemia using renal interstitial glycerol concentrations in a porcine model.

Objectives: To determine the effect of renal cooling on interstitial glycerol concentration during renal ischemia. The rate of cellular release of glycerol into the interstitial fluid at various hypothermic temperatures during ischemia was used to assess adequacy for renoprotection at those temperatures.

Methods: Twenty-four renal units in 12 pigs underwent ischemia during measurement of renal interstitial fluid glycerol concentration.