[Perioperative risk factors of bleeding in extensive liver resections].

Objective: To study the risk factors of severe blood loss in extensive liver resections, consequences of hemorrhagic problems and their correction.

Material And Methods: The study included 374 patients. Group 1 comprised 282 patients (118 men and 164 women aged 54.

[Blood-saving technologies in extensive liver resections].

The researches devoted to blood-saving technologies in extensive liver resections are analyzed in the manuscript. Resection of three and more liver segments is effective method of surgical treatment of various focal liver lesions. Surgical (anatomical resection with hilar glissonean access, Pringle maneuver, modern technical equipment, etc.

[Modified methods of percutaneous electrogastroenterography].

In 62 normal males and females gastrointestinal (GI) electrical activity was evaluated before and after standard breakfast with the method of epicutaneous electrogastroenterography (EGEG) with the use of AgCl electrodes and original hard- and software "Gastroenterograph" developed by the authors. Spectral analysis (SA) of GI electrical potentials enabled quantification of the electrical activity of the stomach, duodenum, jejunum, ileum and the whole of the small intestine. The stomach and the small intestine were main contributors to the total GI electrical activity during fasting.

[State of erythrocytes after long-term exposure to magnetic field].

During and after exposure to a constant magnetic field of 1.6 T mice, showed variations in the size distribution of red blood cells, with their shape remaining unchanged and enlarged cells being predominant. This shift persisted till exposure day 10 and began to return to normal on days 15, 22 and 30.