[Pathophysiology, prophylaxis and treatment of reperfusion syndrome in the surgery of abdominal aorta aneurysm].

The peroxidal oxidation of the lipids state was studied up, as well as of the whole blood neutrophils functional activity, hemodynamics and microcirculation of lower extremities in surgical treatment of the abdominal aorta aneurysm. The main significance in the reperfusional syndrome pathophysiology, caused by temporary overcompression of aorta, has the neutrophils activation, their interrelationship with the endothelium cells and the activity lowering of the tissue antioxidant system, manifestated by vascular spasm, which is mostly expressed in the patients with stenotic affection of the lower extremities arteries. Positive effect was noted in application of preparation corvitin, which has antioxidant action.

[Experimental studying of the possible pharmacological defense of muscular flap tissues from ischemic and reperfusion injury during its free transplantation].

In experiment on muscle flaps of 20 rabbits the peculiarities of their tissues damage in the ischemia period, and also due to the oxygen-dependent processes activation (peroxidal and free radical oxidation of a membrane phospholipids) in period of its reperfusion were studied. Preliminary introduction of a lipin, unitiol and ascorbic acid mixture in the flap arterial channel had promoted the reduction of damage severity in the translocated flap cells biomembranes due to ischemia and reperfusion, causing inhibition of the lipids peroxidal oxidation processes, rising of the flap tissues antioxidant defense, the cell and subcell membranes stabilization which preserves the vessels endothelium integrity. This showed a promising future for application of these preparations in a free transplantation of compound tissue complexes.

[Experimental substantiation of a two-staged method of microsurgical transplantation of the complex composite flaps].

The authors have proposed two-staged flap transplantation, consisting of flap mobilization on vascular pedicle with subsequent its transplantation in several days. In experiment on muscular flaps, obtained from regio epigastrica of 30 rabbits, it was established that optimal time for the second stage of operation conduction may be end of the second--beginning of the third day after the transplant mobilization.

[Method of intraoperative hemostasis in parenchymatous hemorrhage].

The authors have developed a new method for intraoperative hemostasis in parenchymatous hemorrhage. Hemostasis is achieved by means of electrophoresis of fibrinogen and some other factors of blood coagulation into the organ parenchyma. Approbation of the method on dogs has demonstrated its atraumaticity and safety.

[Effects of lipid additions on oxygen supply of skeletal muscles].

The experiment was done on rabbits which were fed for 4-5 weeks a diet with sunflower oil or butter (0.2 gm/100 gm of weight). It was shown that oxygen supply of skeletal muscle could change due to structural of functional modifications of hepato-parenchymatous barrier caused by dietary factors.