Biomedical subjects
Publications and source records attributed to I M Suvorov.
The authors revealed a dependence of disordered autonomous regulation of cardiac rhythm on vibration disease severity, local vibration and on length of service with exposure to vibration.
The article represents data characterizing course of chronic bronchitis in 78 machinery workers subjected to toxic irritative and sensibilizing aerosols. Findings are early bronchial obstruction and pulmonary emphysema, frequent disorders of microcirculation and lesser circle perfusion, propensity to interstitial pulmonary fibrosis and lung hypertension. The results could serve as a base for pathogenetic therapy and necessitate to include COLD into Occupational Diseases Register.
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Clinical studies and experiments on laboratory animals covered mechanism of trichloroethylene toxicity. The chemical and its metabolites cause nonspecific toxic effects in membranes and therefore induce energy metabolism disorder that is proved to be a trigger of pathologic process in the intoxication. Experimental studies failed to disclose and explain mechanism of compromised calcium metabolism and its role in cardiac manifestations seen in trichloroethylene poisoning.
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Basing on the results of original clinical and experimental studies, as well as on medical literature data, the contributors proposed a hypothesis of the toxic action of trichloroethylene. It was attempted to prove that the trigger links of trichloroethylene intoxications were the energy exchange disorders caused by the nonspecific membranotoxic actions of the substance's molecules and their metabolites, as well as the extra consumption of energy by the metabolic processing of the poison. Involvement of adaptational reactions, such as the catecholamines' discharge, under the conditions of the damaged metabolic system, decreased the cell's potential and aggravated the severity of intoxications.
On the basis of the analysis of the sanitary and hygienic conditions, epidemiology of a mass disease, clinical picture of the disease during a 6-month trial period the problems of differentiated diagnosis of infectious and toxic processes, examination of capacity for work, the course of diseases were studied in 219 workers who had had legionellosis. The participation of various specialists in the analysis of analogous cases at the enterprises with chemical environmental contamination and developed systems of air conditioning was considered necessary.
The contributors provide an analysis of acute occupational poisoning cases basing on the data obtained by the Institute of Occupational Diseases in Leningrad for 1980-1987, investigate the structure of the registered acute poisonings, their occurrence and reasons. A more detailed clinical description of an acute poisoning with trichlorethylene is given with particular emphasis on its cardiotoxic effects.
Clinical data on the characteristics of the course of the disease caused by microwave radiation are presented. It is assumed that the characteristics of the clinical picture of the disease are specified by radiation "geometry".
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The pathogenesis of damage to the heart muscle caused by exposure to the effect of cobalt compounds is demonstrated. Agents with various mechanisms of action were tested in the experiment. The most effective pharmacological agents (beta-adrenergic blocking agents, anabolic steroids) are recommended for testing in the clinic. A positive effect was registered in the treatment of cobalt cardiomyopathy in the clinic. The mechanisms of the favourable effect of beta-adrenergic blocking agents and anabolic steroids are discussed.