CARDIOVASCULAR MEDICINE
Background: loop endarterectomy (LEA) is one of the low-traumatic methods of modern treatment of arteries of the lower extremities atherosclerosis.
Objective: determining the advantages and disadvantages of loop endarterectomy of iliac arteries for successful implementation as a component of hybrid technology.
Materials and methods: the study was carried the results of treatment of 131 patients with obliterating atherosclerosis of lower limb arteries, with a preferential defeat of the iliac arteries. All patients underwent unilateral or bilateral LEA. In the early and late (5-7 years) postoperative periods all the patients were studied using a questionnaire survey and ultrasonic angioscanning, 23 patients underwent aorto-angiography, 68 – MSCT-scan.
Results: 107 (81,3%) cases the intervention was released only from the femoral access. Additional access to the retroperitoneal space required when performing a 24 (18,3%) operations. Specifi c to LEA complications was the casting areas of the plaque in the artery, other lower extremities, pronounced calcifi cation with lesion of all layers of the vascular wall hypoplasia, tortuosity or aneurysmal extension to the iliac arteries, high occlusion of the abdominal aorta. In these patients, shunting by synthetic prosthesis is the intervention of choice.
In the early postoperative period occurred thrombosis 5 (3,8%), subjected to loop endarterectomy iliac arteries.
Postoperative hospital day was 8+-2 days. Five-year survival after LEA is 77.1%.
Conclusions:
1) the study showed that LEA is promising, and may be a priority intervention on the iliac arteries.
2) the remote results of patency of the iliac arteries after LEA signifi cantly higher than in synthetic grafts that are installed in the aorto-femoral position.
3) the rejection of the use of synthetic substitutes or their use to a minimum (only as a patch) signifi cantly reduces the risk of infectious complications.
PAIN, CRITICAL CARE, AND ANESTHESIA
RADIOLOGY
For the purpose of an objective assessment of liver and heart iron overload in patients with hemochromatoses of various genesis, 60 patients underwent magnetic resonance imaging (MRI) using the T2 *-relaxometry technique.
The study was performed on a high-fi eld magnetic resonance scanner by induction of a magnetic fi eld of 1.5 T. A comparison was made of the data obtained during the MRI with the laboratory data of patients, namely, the concentration of serum ferritin.
As a result of the work it was shown that the technique T2 * MR -relaxometry is effective, to date provides the most accurate information from non-invasive methods for examining iron overload, and requires inclusion in the protocol of patients with suspicion of iron overload, especially when planning therapy with iron chelators.
CELL, TISSUE, AND GENE THERAPY
EXPERIMENTAL STUDIES
Background. Cardiac hypertrophy is a violation of myocardium structure, that increases risk for development of various cardiovascular diseases. Pathological hypertrophy can be triggered by hemodynamic and neurohumoral factors. At cellular level structural element of cardiomyocytes Z-disk, containing a great number of proteins, plays a crucial role in hypertrophy progression. Involvement of Z-disk components in cardiac hypertrophy development is not throughly investigated. Objective. The goal of the work was to investigate expression of genes encoding Z-disk proteins in cardiac hypertrophy caused by renovascular hypertension. Design and methods. «2 kidney, 1 clip» model was performed on male Wistar rats. Animals were divided into groups regarding to model duration.
Gene expression in right and left ventricles was analyzed by real-time PCR. Results. We demonstrated altered expression of cmya5, actn2, nebl: increase at the early stage (1, 2 weeks), followed by decrease to basal level in left ventricle and gradual increase to the later stage (8, 10 weeks) in right ventricle. Des was upregulated at the early stage in both ventricles. Conclusion. Stage of hypertrophy progression could affect expression of genes, encoding Z-disk proteins. Thus, confi rming involvement of Z-disc proteins in cardiac hypertrophy development caused by neurohumoral factors in left and right ventricles.
ISSN 2410-5155 (Online)