PROSPECTS FOR USING BIOLOGICAL MARKERS IN VARIOUS TYPES OF URINARY STONE LITHOTRIPSY


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Abstract

Aim. To investigate the feasibility of using biological markers for determining the optimal timing to repeat lithotripsy of urinary stones. Materials and methods. This was a prospective, randomized, singlecenter cohort study of 100 patients randomized into 4 groups. Patients of group I (n=46), II (n=20), III (n=18) and IV (n=16) were used contact lithotripsy (URS), ESWL, PNL, combined lithotripsy. In all patients, before surgery and at 1, 7, 14, 20 days after lithotripsy, iron-induced urine chemiluminescence was measured to determine the level of reactive oxygen species (ROS) and concentration of medium-mass molecules (MMM) in urine. Results. Analyzing the time of operation and the size of stones only in group I was detected the significant negative correlation (r=-0,479, p<0,05). In patients of all groups, the level of ROS have decreased after the surgery with further returning to baseline level. Dynamics of changes MMM in urine has not revealed a reliable change tendency. Conclusion. The definition of the quantity of ROS in urine is a promising criterion in measuring the degree of urinary system damage and the time for repeated lithotripsy. The level of ROS in the urine after URS, ESWL and the ESWL-URS combination returns to baseline on the 7th day and after PNL on the 14th day postoperatively, thus allowing to pathogenetically define the optimal timing of repeat lithotripsy.

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About the authors

M. M Kutluev

Multidisciplinary Medical Medical Clinic «Medservice»

Email: marrat@rambler.ru
PhD, Urologist at the Department of Urology

I. L Pulin

Multidisciplinary Medical Medical Clinic «Medservice»

Email: ivan.pulin@mail.ru

A. Ya Ryakhov

Multidisciplinary Medical Medical Clinic «Medservice»

Email: snosdlt@yandex.ru

K. S Mochalov

Bashkir State Medical University

Email: kostja.mochalov@yandex.ru

R. R Farkhutdinov

Bashkir State Medical University

Email: farkhutdinov@mail.ru

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