We're Not Sure We Like It but We Still Want More: Trainee and Faculty Perceptions of Remote Learning During the COVID-19 Pandemic.

Objective: In this study, the authors aim to compare perceptions of remote learning versus in-person learning among faculty and trainees at a single institution during the COVID-19 pandemic and to evaluate the impact that a brief faculty training on best practices in online teaching would have on faculty attitudes towards remote learning.

Methods: The authors conducted an attitude survey on remote learning among trainees and faculty members approximately 3 months after the transition from in-person to remote learning. The authors then conducted a faculty training on best practices in online teaching followed by an evaluation survey.

Hybrid transureteral nephrectomy in a survival porcine model.

Background And Objectives: Natural-orifice approaches for nephrectomy have included access via the stomach, vagina, bladder, and rectum. Recently, the feasibility of using the ureter as a natural orifice for natural-orifice transluminal endoscopic surgery nephrectomy has been demonstrated in a nonsurvival porcine model. The purpose of this study was to assess the outcomes of transureteral laparoscopic natural-orifice transluminal endoscopic surgery nephrectomy in a survival porcine model.

Comparing stone attenuation in low- and conventional-dose noncontrast computed tomography.

Background And Purpose: Noncontrast computed tomography (NCCT) has high sensitivity, specificity, and is able to predict stone composition using Hounsfield units (HU) but is associated with high radiation exposure. In an attempt to reduce radiation exposure, low-dose stone protocols have been developed that provide excellent detection of stones. It is not known, however, whether these protocols are equally effective in determining HU stone density.

Comparing radiation exposure between ablative therapies for small renal masses.

Purpose: The purpose of this study was to evaluate the amount of radiation exposure patients with small renal masses undergoing percutaneous cyroablation (PCA) or percutaneous radiofrequency ablation (PRFA) received during treatment and follow up.

Materials And Methods: A retrospective review was conducted on all patients with small renal masses <4 cm treated with PCA or PRFA over a 7-year period in a single academic center. Preoperative, operative, and post-operative variables were collected and compared.

Radiation exposure during continuous and pulsed fluoroscopy.

Unlabelled: Abstract Background and Purpose: Previous studies using pulsed fluoroscopy have shown variable effects on radiation exposure because of the ramp and trail effect in older C-arm systems. This study compares radiation delivered in pulsed and continuous modalities using a modern C-arm system.

Materials And Methods: Thermoluminescent dosimeters (TLDs) positioned in three body locations directly measured radiation dose during simulated ureteroscopy.

In automated fluoroscopy settings, does shielding affect radiation exposure to surrounding unshielded tissues?

Background And Purpose: Automatic brightness control (ABC), a function of modern fluoroscopy machines, adjusts radiation intensity in real time to enhance image quality. While shielding reduces radiation exposure to protected areas, it is unknown how much radiation adjacent unshielded areas receive when using ABC settings. Our purpose was to assess radiation dosage to shielded and unshielded tissue when using fluoroscopic ABC mode compared with fixed exposure settings.

Ureteral calculi detection using low dose computerized tomography protocols is compromised in overweight and underweight patients.

Purpose: Low dose computerized tomography protocols have demonstrated a reduction in radiation exposure while maintaining excellent sensitivity and specificity in the detection of stones in patients of average size. Low dose computerized tomography protocols have not yet been evaluated in subjects in the extremes of weight. We evaluated the effect of body weight when using low dose protocols to detect ureteral calculi.

Robot-assisted radical prostatectomy in patients with previous renal transplantation.

Purpose: To evaluate the outcomes of robot-assisted radical prostatectomy (RARP) in patients with previous renal transplantation.

Patients And Methods: We retrospectively identified all patients who had undergone RARP for localized prostate cancer between 2005 and 2008 at a single institution (N=228). Of these, three patients were renal transplant recipients.

A prospective randomized comparison of traditional laparoendoscopic single-site surgery with needlescopic-assisted laparoscopic nephrectomy in the porcine model.

Background And Purpose: Laparoendoscopic single-site (LESS) surgery produces virtually no scar but is technically challenging because of the loss of triangulation. The objective of this study is to compare classic transumbilical LESS nephrectomy with needlescopic-assisted laparoscopy (NAL) surgery. In doing so, we evaluated whether the addition of a single 2-mm subcostal port could restore triangulation while not jeopardizing recovery or cosmetic outcome in the porcine model.

Patients with end-stage renal disease are candidates for robot-assisted laparoscopic radical prostatectomy.

Background And Purpose: Patients with end-stage renal disease (ESRD) have multiple comorbidities that place them at increased risk for surgical complications. Consequently, patients with both ESRD and prostate cancer (PCa) have rarely been considered candidates for radical prostatectomy. The objective of this study is to compare ESRD patients who are undergoing robot-assisted laparoscopic prostatectomy (RALP) with a cohort of patients with no history of dialysis.

Ocular complications after open and hand-assisted laparoscopic donor nephrectomy.

Objectives: To compare the incidence of ocular complications (OC) and corneal abrasion (CA) after hand-assisted laparoscopic donor nephrectomy (HALDN) and open donor nephrectomy (ODN).

Methods: A retrospective review was conducted of 241 consecutive patients (141 HALDN and 100 ODN) over a 9-year period. OC were strictly defined as ocular complaints requiring any treatment or ophthalmologic consultation.

Effect of low dose radiation computerized tomography protocols on distal ureteral calculus detection.

Purpose: Unenhanced multidetector computerized tomography is the imaging modality of choice for urinary calculi but exposes patients to substantial radiation doses with a subsequent risk of radiation induced secondary malignancy. We compared ultra low dose and conventional computerized tomography protocols for detecting distal ureteral calculi in a cadaveric model.

Materials And Methods: A total of 85 calcium oxalate stones 3 to 7 mm long were prospectively placed in 14 human cadaveric distal ureters in 56 random configurations.