Publications by authors named "Chernyi S"

The necessity to improve the metallographic analysis systems to automate diagnostics of the condition of the metals for all their characteristics has been substantiated. The metallographic analysis algorithm based on the use of neural networks for recognizing metal microstructures and a case-based reasoning approach for determining the metal grade is proposed. The structure of a multilayer neural network to determine the metals quantitative parameters has been developed.

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An information model is outlined, which represents an intelligent system of metallographic analysis in the form of a set of subsystems, the interaction of which ensures the performance of metallographic analysis functions. The structure of the information storage subsystem for metallographic analysis is presented. The deployment model of an intelligent metallographic analysis system is proposed and described.

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The article presents an assessment of postoperative period in patients with diffuse lung emphysema with large and giant bullas on the basis of surgical risk criteria, which were developed for the patients with diffuse emphysema without bullas. Retrospective study determined the group of patients who had high rate of surgical complications after bullectomy. The patients (46) were divided into 2 groups and it depended on the initial condition of the patients.

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The article showed the results of ultrasonic assessment of topographic and functional diaphragm indices in patients with severe diffuse emphysema. They passed the selection for lung volume reduction surgery. The comparison of diaphragm indices was presented in patients with diffuse emphysema and control group of healthy volunteers.

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An analysis of examination and treatment results was made in 123 patients with generalized emphysema of the lungs and respiratory failure of II-III degree. The patients were divided into two groups according to the age: younger than 40 years old (group A - 9 patients),40 years old and older (group B - 114). A surgical reduction of lung volume was performed to correct the respiratory failure in 69 patients.

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The osteoplastic tracheobronchopathy affects the trachea, main, lobar and smaller bronchi, causing their stenosis. Nowadays the mainstay of the treatment of such patients is the cryodestruction, laser destruction and the endoscopic buginage of the trachea and bronchi. The palliative nature and low efficacy of these procedures forces to search new ways of treatment.

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An analysis of results of examination and treatment of 8 young patients (from 25 to 17 years of age) with generalized emphysema of the lungs, pulmonary failure of the II and III degrees was made. The functional examination of the patients before operation has revealed changed respiration by obstructive type. Symptoms of dysplasia of the connective tissue were found in 4 patients.

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759 patients with cucatritial stenosis of trachea were treated in the Russian Scientific Center of Surgery in the period from 1963 to 2009. Extensive or multifocal stenosis was diagnosed in 172 patients. 157 patients were previously operated in other hospitals.

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Primary lymphoma of the heart (non-Hodgkin's lymphoma primarily of B-cells affecting first the heart and pericardium) is a rare disease which accounts for 1.3-2.0% of all primary tumors of the heart.

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Methods for microbiological monitoring could analyze the microflora isolated in 372 patients with iatrogenic diseases of the trachea and esophagus, who were treated at the Department for Surgery of the Lung and Mediastinum, Acad. B. V.

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Surgical policy for scarry tracheal stenosis is analyzed. In the years 1998-2003 in the clinic there were 32 circular resections of the trachea. More than 5 cm of the tracheal segment was ablated in 15 of the cases.

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Twelve patients with severe chronic pulmonary obstructive disease complicated by a strong respiratory failure underwent lung volume reduction operations. An examination of the baseline functional parameters showed a significant outflow obstruction and lung hyperinflation. All the patients selected for the operation had a heterogeneous pattern of emphysema.

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The investigation included 32 patients after extensive operative interventions on the lungs: pneumonectomy with circular resection of the trachea bifurcation and different kinds of combined pneumonectomies. Methods of Doppler echocardiography and thermal dilution were used for studying the parameters of lesser circulation before, during and after operation. Patients with the initially impaired hemodynamics had more pronounced functional changes after surgical procedures.

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Various types of high-frequency and conventional controlled lung ventilation, as part of anesthesiological management during surgery have been comparatively assessed. The study was conducted on 239 patients. The study of gas exchange, mechanical properties and pulmonary hemodynamics revealed no data indicating the clinically significant advantages of high frequency ventilation regimens.

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Bronchoscopic laser operative interventions with the use of yttrium- aluminum -garnet laser were carried out in 36 patients with various pathological structures of the trachea. Laser endosurgery was applied as radical and palliative types of therapy. Endoscopic laser interventions make it possible to remove completely benign and carcinoid tumors, correct some types of cicatricial stenoses, restore continuity of the trachea, and remove respiratory insufficiency in inoperable malignant neoplasms with exophytic growth.

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Clinical observations of two patients are described. Direct vesicopelvic anastomosis was fulfilled in both of them: in one patient--in autotransplantation of the left kidney, in the other--in pelvic dystopia of the hydronephrotically altered right kidney. Clinical recovery and perfect restoration of working capacity of the patients was obtained.

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Autotransplantation of the left kidney into the iliac zone was fulfilled. A direct pelvic-vesical anastomosis was made for total tuberculosis of the ureter, which resulted in perfect clinical recovery. The patient was reexamined 6 months later and found to be practically healthy.

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A clinico-experimental study was performed in 132 rabbits and 8 patients. The formation of so-called "giant caverns" is thought by the authors to be due to disturbed vascularization of proximal portions of the tubules resulting in their gradual destruction and fusion. The necessary removal of not only the superficial retention structures erroneously called "giant cavern" but also the somewhat deeper caseous-cavernous tuberculosis focus is stressed.

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The authors describe the method of regional continuous infusion into the renal artery of antibacterial cocktails used in 8 patients (cavernous tuberculosis of the kidney in 4 patients, purulent injury of the parenchyma in 4 patients) and the method of superselective embolization of the renal artery branches before the organ-preserving operation performed in 2 patients.

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The analysis of results of organ-preserving operations in 46 patients with the retention-inflammatory diseases of the kidneys has shown the complex urologic examination, renal angiography included, to be necessary for choosing the operation volume. It was established that obstruction can be frequently caused by a subsidiary polar-inferior vessel (artery or vein).

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Embolization of renal arteries by an autoclot with thrombin was used in 16 patients. Hypernerphroma was diagnosed in 13 patients, pyonephroses--in 2 patients and adrenal tumor--in one patient. In two patients catheterization of the renal artery failed due to atherosclerotic injury of the aorta.

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