Is the "Pandemic Diet" Nonlithogenic?

The COVID-19 pandemic and worldwide quarantine resulted in major changes in individual lifestyles. In New York State, March 16, 2020, marked the end of in-restaurant dining and a reported shift to more cooking at home. We investigated the 24-hour urine of patients with known history of nephrolithiasis to see if changes during COVID-19 pandemic altered the risk of stone disease.

Uroseptic Shock Can Be Reversed by Early Intervention Based on Leukocyte Count 2 h Post-operation: Animal Model and Multicenter Clinical Cohort Study.

This study investigated whether early intervention based on leukocyte count (WBC) of less than 2.85 × 10/L obtained within 2 h post-operatively may ameliorate the uroseptic shock induced by upper urinary tract endoscopic lithotripsy (UUTEL). Urosepsis was induced in 30 rabbits and assigned to three groups: Control-I, WBC-I, and Shock-I.

Transrectal ultrasound-guided extraction of impacted prostatic urethral calculi: a simple alternative to endoscopy.

Urethral stones can become impacted in the posterior urethra, typically presenting with varying degrees of acute urinary retention and lower urinary tract symptoms. These are traditionally treated in the inpatient setting, with external urethrotomy or endoscopic push-back of the calculus into the urinary bladder followed by cystolitholapaxy or cystolithotripsy. However, these methods are invasive, involve general anesthesia, and require radiation.

Diagnosis of bladder cancer with microelectromechanical systems-based cystoscopic optical coherence tomography.

Objectives: To examine the utility and potential limitations of microelectromechanical systems-based spectral-domain cystoscopic optical coherence tomography (COCT) so as to improve the diagnosis of early bladder cancer.

Methods: An optical coherence tomography catheter was integrated into the single instrument channel of a 22F cystoscope to permit white-light-guided COCT over a large field of view (4.6 mm wide and 2.

Impact of a second semen analysis on a treatment decision making in the infertile man with varicocele.

Objective: To evaluate the impact of second semen analysis (SA) on a treatment decision in infertile men with varicocele and abnormal first SA.

Design: Retrospective chart review.

Setting: University hospital.

A percutaneous subcostal approach for intercostal stones.

Purpose: Percutaneous upper pole access may be obtained via the supracostal or subcostal approach. The more cranial the location of the percutaneous nephrostomy tract, the greater the risk of incurring intrathoracic complications. We describe a technique for safely accessing the upper pole calix via a subcostal approach, even when the stone is located well above the 12th rib.

Endoscopic treatment of bladder calculi in post-renal transplant patients: a 10-year experience.

Background And Purpose: Urinary calculus formation following renal transplantation is an uncommon phenomenon. As a result of the growing number of renal transplants performed and the greater graft survival, there has been increased awareness of transplant-related complications, one of which is calculus formation. We report our experience in the management of bladder calculi after renal transplantation.

Increase in scrotal temperature in laptop computer users.

Background: Scrotal hyperthermia has been identified as a risk factor for male infertility. Laptop computers (LC) have become part of a contemporary lifestyle and have gained popularity among the younger population of reproductive age. LC are known to reach high internal operating temperatures.

When can persistent hydroureteronephrosis in posterior urethral valve disease be considered residual stretching?

Purpose: Persistent hydroureteronephrosis (HUN) is often seen in boys with a history of a posterior urethral valve even years after valve ablation and it is often assumed to represent residual stretching. We determined the association of HUN with urodynamic abnormalities, the effect on HUN of treating these abnormalities and when persistent HUN could be considered residual stretching.

Materials And Methods: Of 71 patients with a posterior urethral valve evaluated after valve ablation 20 (28.

Management of nonpalpable testicular tumors.

Objectives: To report our series of nonpalpable testicular tumors with a review of published studies. Radical orchiectomy remains the reference standard in the treatment of a solid testicular mass. Testis-sparing surgery has recently been advocated for a select group of patients with nonpalpable tumors.

Phase I trial of a temporary ureteral drainage stent.

Background And Purpose: The temporary ureteral drainage stent (TUDS; Boston Scientific/Microvasive, Natick, MA) is a biodegradable device that is designed to maintain patency for 48 hours with gradual softening and spontaneous expulsion thereafter. We evaluated the durability, patency, and safety of TUDS in a Phase I clinical trial.

Patients And Methods: Eighteen stone patients requiring sequential percutaneous nephrolithotomies (PNL) for complex stone disease underwent antegrade TUDS placement following initial percutaneous treatment.

Renal hemodynamic and ureteral pressure changes in response to ureteral obstruction: the role of nitric oxide.

Purpose: Triphasic changes in renal blood flow and ureteral pressure after unilateral ureteral obstruction have long been known. The contribution of nitric oxide to the decline in renal blood flow and ureteral pressure in unilateral ureteral obstruction was studied in this model using arginine infusion and by studying the effect of 2 inhibitors of nitric oxide synthase (NOS).

Materials And Methods: Left ureteral obstruction was created in dogs.

Treatment of bilateral fibroepithelial polyps in a child.

Ureteral fibroepithelial polyps are extremely rare benign lesions composed of stroma with a surface of normal transitional epithelium. Traditionally, symptomatic polyps were treated with open exploration and segmental resection. We describe the first case of bilateral polyps in a child.

Effect of freezing parameters (freeze cycle and thaw process) on tissue destruction following renal cryoablation.

Background And Purpose: Renal cryoablation is a successful nephron-sparing treatment alternative for selected patients with small renal tumors. The purpose of this study was to compare the effects of the number of freeze cycles (one v two) and the thaw process (active v passive) on renal tissue following cryodestruction.

Materials And Methods: Sixteen female mongrel dogs (19.