[Comparative analysis of the results of treatment of patients with recurrent urethral stricture using platelet-rich plasma].

Introduction: The treatment tactics of patients with recurrent urethral stricture requires an integrated approach. An increase in the treatment efficiency is possible not only through improvements in surgical technique, but also by influencing the pathogenetic mechanisms of the formation of urethral stricture and stimulating regeneration.

Aim: To evaluate the efficiency of reconstructive procedures using platelet-rich plasma in patients with recurrent urethral stricture.

Monte Carlo simulations of light transport in sunscreen formulations.

Sunscreens are used for the protection of human skin against the harmful effects of solar UV radiation. Due to the low thickness of sunscreen films typically applied to the skin, it can be challenging to achieve the strong absorbance needed for good UV-protection, and most efficient sunscreen compositions are desirable. The presence of scattering particles can increase the efficacy of dissolved UV-absorbers in the oil or water phases of the formulation.

[Development of purulent-destructive forms of acute pyelonephritis in patients with a history of new coronavirus infection Covid-19].

Introduction: Since 2019, more than 600 million cases of the new coronavirus infection Covid-19 have been reported worldwide. According to various studies, the development of a systemic inflammatory response and "cytokine storm" play an important role in the pathogenesis of kidney damage, which leads to impaired microcirculation, increased thrombus formation and the development of ischemic areas in the parenchyma.

Aim: To study the frequency and possible causes of purulent forms of pyelonephritis in patients who have had a new coronavirus infection Covid-19.

[Mean features of the nephron- sparing surgery in older patients with localized renal cell carcinoma].

Background: Imaging diagnostics becomes more widespread, the incidence of incidental renal cell carcinoma (RCC) among older adults is increasing each year. Although nephron-sparing surgery are the standard of care for localized RCC, the potential risk of perioperative complications and readmission rates are higher among older patients.

Objective: To compare the main perioperative indicators, as well as oncological and functional results in the treatment of localized RCC in in older patients and middle-aged patients MATERIALS AND METHODS: From 2016 to August 2021 at the N.

[Efficacy and safety of intermittent catheterization for acute urinary retention: a prospective comparative randomized study].

Objectives: of the study: to evaluate the effectiveness and safety of intermittent catheterization in the management of acute urinary retention and to identify factors influencing the resume normal voiding and the development of adverse events.

Materials And Methods: 129 patients admitted to urology department with acute urinary retention due to BPH were randomized into two groups. Group I had indwelling bladder catheterisation using Foly catheter.