[Role of the level of obstruction and urodynamics of the upper urinary tract in infectious-toxic complications in urolithiasis. (Clinical and experimental study). ]. / Rol' urovnia obstuktsii v narushenii urodinamiki verkhnikh mochevykh putei pri oslozhneniiakh mochekamennoi bolezni (Kliniko-éksperimenal'noe issledovanie)

Clinical studies have revealed that location of the occlusion in the kidney and upper third of the ureter raises the risk of severe infectious-toxic complications of urolithiasis. It is shown experimentally that mechanisms of compensation of impaired urinary transport along the upper urinary tracts differ in obstruction of the upper and lower third of the ureter.

[Urinary tract occlusion: a principal cause of some complications of urolithiasis]. / Okkliuziia mochevyvodiashchikh putei -- osnovnaia prichina razvitiia riada oslozhnenii mochekamennoi bolezni.

Urinary tract occlusion in urolithiasis is a serious complication which provokes an attack of acute obstructive pyelonephritis. The infected urine aggravates this infectious-inflammatory process and endangers bacterial shock. Etiopathogenesis of this shock is outlined and modern approaches to its management are described.

[Endoscopic ureterolithotripsy with the holmium laser]. / Endosckopicheskaia ureterolitotripsiia gol'mievym lazerom.

One of the clinical and experimental investigations performed in the urological clinic of the Moscow Medical University and Research Institute of Urology aimed at elucidation of Ho-YAG-laser potential in endoscopic lithotripsy (EL). Russian Ho-YAG laser surgical units CTH-10 and LLT-3 with wave length 2.09 mu were employed. The studies showed that the developed laser units satisfied relevant medical and technical requirements. Low depth of laser impulse penetration (0.4 mm) obtained at EL warrants safety of the adjacent tissues which is essential in crushing fixed ureteroliths in the presence of severe inflammation in the ureteral wall. The conclusion is made that Ho-YAG laser EL is an effective treatment of ureteroliths. Further tests for EL efficacy in affections of the upper urinary tracts are advocated to define a proper place of EL in endoscopic urology.

[Changes in the oxygen tension of the kidney cortex in exposure to laser irradiation at different wavelengths (an experimental study)]. / Izmeneniia napriazheniia kisloroda v korkovom sloe pochek pri vozdeistvii lazernogo oblucheniia razlichnoi dliny voln (éksperimental'noe issledovanie).

Experiments with exposure of the renal cortex to different kinds of laser radiation with measurement of pO2 demonstrated that intravenous UV laser radiation inhibits tissue oxygenation. Subvascular blood exposure to infrared and intravenous one to He-Ne laser are beneficial as such radiations improve oxygenation of the renal cortex.

[The characteristics of the action of high-energy lasers on kidney tissues (experimental research)]. / Kharakteristika vozdeistviia vysokoénergeticheskikh lazerov na tkan' pochki (éksperimental'noe issledovanie).

Alternative and reparative changes in renal tissue exposed to high-energy laser radiation are characterized basing on the experimental findings. It is emphasized that hemostasis and ablasticity are secured better if dissection of the renal tissue is made by a contact YAG-Nd laser versus routine laser scalpel.

[A method and the clinico-laboratory results of laser therapy for patients with chronic prostatitis]. / Metodika i kliniko-laboratornye rezul'taty lazernoi terapii bol'nykh khronicheskim prostatitom.

Local exposures to low-intensity laser radiation (LILR) in chronic prostatis (CP) patients diminish basic symptoms of the disease (pain, dysuria, sex disorders, objective picture). Clinical response was obtained in 93.2% of cases. LILR markedly improved prostatic function, promoted trends to normalization of quantitative and biochemical ejaculate composition. LILR may act as antiaggregator contributing to less ejaculate viscosity and stimulate spermatozoal activity and motility. The above results were seen in 72.4-80% of the exposed patients. CP laser therapy should be wider introduced in clinical practice because its resolving, antiedema, anti-inflammatory, analgetic and deaggregation effects potential.