Association of the efficiency of hemodialysis instruments in the removal of microbial and chemical pollutant.

Dialysis water is vital because of various harmful contaminants for patients. The aim of this study was to assess the efficiency of hemodialysis instruments in the removal of microbial and chemical pollutant in educational hospitals affiliated to Ahvaz Jundishapur University of medical sciences, Iran during 2018-2019. This cross-sectional descriptive research studied the microbial and chemical water quality of hemodialysis instruments in Razi, Sina, and Golestan hospitals in Ahwaz, Iran.

[Phosphodesterase type 5 inhibitors clinical efficiency and role in therapy for erectile dysfunction].

This article discusses the physiological mechanisms of erection and the pathophysiological basis of erectile dysfunction. Parameters characterizing the features of the pharmacokinetics and pharmacodynamics of drugs from the group of phosphodiesterase type 5 inhibitors (PDE-5i) are presented. The clinical efficacy and possible adverse effects of the most significant PDE-5i are considered.

[High resection of the left testicular vein and ligation of the internal iliac artery using a retroperitoneoscope].

In 90 youths at the age of from 14 to 16 years suffering from left-sided varicocele, the authors have used a retroperitoneoscope for high ligation and transection of the testicular vein. There were no complications at the time of operation and after it. In control examination 1.

[Operative surgery of the kidneys and ureters using a retroperitoneoscope].

Operative interventions on the kidneys and ureters were performed in 85 patients. In revision of the upper pole of a kidney and its median segment, the authors have used the original technique of retroperitoneoscopy (paranephroscopy) in the 11-th intercostal space. The techniques of decapsulation of a kidney, pyelo-, nephrostomy by means of the retroperitoneoscope, operative approaches to the different parts of the ureter, technique for removal of its stones are presented.