Early signs of upper limb lesions in workers exposed to local vibration

2019 ◽  
pp. 960-965
Author(s):  
Ju. A. Ivashova ◽  
E. A. Polevaya ◽  
T. A. Ponomareva
Keyword(s):  
Working Conditions ◽  
Upper Limb ◽  
Comparison Group ◽  
Average Length ◽  
Group Analysis ◽  
Observation Group ◽  
Years Of Experience ◽  
Local Vibration ◽  
Early Signs ◽  
The Impact

Vibration pathology, including disorders of the vascular, nervous and musculoskeletal systems, occupies one of the first places in the structure of health disorders in workers of vibration-hazardous industries.The aim of the study was to identify informative diagnostic criteria for identifying early signs of upper limb lesions.The observation group consisted of 90 workers aged 46.7±2.5 years (p>0.05), with experience of 22.4±3.9 years; the comparison group–60 workers whose working conditions were not associated with the studied factor; the average age of 45.8±2.4 years, experience of 24.1±4.1 years (p>0.05). The survey included the analysis of working conditions and professional route, clinical examination, questionnaires, laboratory and functional studies, statistical processing of the results, calculation of epidemiological indicators.The analysis of working conditions showed that the level of local vibration exceeded the maximum permissible level by 2–6 dB for the employees of the observation group. The survey showed that going to the doctor is a last resort for workers, even in the case of chronic pain. According to the results of the survey and examination, it was found that the formation of pain syndrome in employees of the observation group occurs against the background of the development of vascular and neurovascular disorders. There was an increase in the estimated age of the arteries of the upper extremities (5.3±2.8 years) in 23.3% of the observation group. Analysis of dynamometry results in dynamics for three years showed a slowly progressive decline in 21.1% of workers in vibration-hazardous professions with 11.3±3.4 years of experience, and only 3.3% of workers in the comparison group with 23.6±6.3 years of experience. In General, there is a high risk of decreased muscle strength, which is prognostically significant for the preservation of professional ability to work. The calculation of epidemiological indicators confirmed the connection of vasospastic reactions with the impact of local vibration (χ2=5.85, p<0.001; F=0.177, p<0.05; RR=2.5, 95% CI=1.7–3.7; EF=65%). Under the influence of local vibration, early signs of upper limb lesions develop with 5 years of experience and are characterized by vascular changes. Clinical syndromes characteristic of vibrational pathology are formed with an average length of service of 10 years. It is necessary to improve the complex of diagnostic measures aimed at identifying early signs of damage to the upper limbs, in order to improve the labor prognosis in workers under the influence of local vibration.

scholarly journals The impact of harmful occupational factors on the morbidity rate of workers of the railway-car repair plant

2019 ◽  
Vol 95 (12) ◽  
pp. 1150-1154
Author(s):  
Natalia A. Sudeikina ◽  
G. V. Kurenkova ◽  
E. P. Lemeshevskaya
Keyword(s):  
Working Conditions ◽  
Comparison Group ◽  
Working Environment ◽  
Labor Process ◽  
Morbidity Rate ◽  
Local Vibration ◽  
Occupational Factors ◽  
Depth Analysis ◽  
Medical Examinations ◽  
The Impact

The rail transport is the one of the leading sectors of the national economy. More than 50% of the employees of the enterprises of the railway complex work under the unfavourable impact of hazardous and dangerous substances and occupational factors. In the literature issues of working conditions and health of employees of railway carrepairing plant are hardly highlighted. The aim of the study is the evaluation of the morbidity rate shaped under the influence of harmful occupational factors for the elaboration of preventive measures. In the work there were used generally accepted methods of hygienic studies, analysis of morbidity rate with temporary disability (TD), according to records of periodic medical examinations, occupational prevalence. The railway car-repairing plant was established to be characterized by the complex of harmful factors of the working environment and labor process: noise, local vibration, industrial aerosols of complex composition, chemicals, low light, hardness of the labor process. The levels of incidence with temporal disability in the studied groups, depending on the work seniority in the harmful labor conditions, significantly decrease with the experience from 5 to 9 years and increase with the experience more than 10 years. Executed in-depth analysis as of the both morbidity rate and TD, as well results of periodic medical examinations of workers of main shops shows that overall indices of the morbidity rate and TD are significantly higher than in the comparison group; levels of the morbidity rate and TD in the observed groups significantly decline depending on the length of service in hazardous working conditions with a length of the experience offrom 5 to 9 years and increase with the increase in the length of experience of 10 years or more. In the structure of morbidity and TD leading positions are occupied by diseases of the respiratory system, musculoskeletal system and connective tissue, circulatory system and digestive system, diseases of the eye and its appendages. The health damage risk coefficients in the studied groups of workers and the average losses of working time due to the morbidity with TD per 1 employee in all shops are higher than those in the comparison group. The level of the occupational morbidity rate is very low. Harmful working conditions contribute to the development of general and occupationally related diseases.

Optimization of diagnostic system of hand diseases in employees working under combined effects of vibration and physical overloads

2019 ◽  
pp. 950-955
Author(s):  
M. M. Poroshina ◽  
E. M. Vlasova ◽  
A. Ya. Perevalov
Keyword(s):  
Working Conditions ◽  
Comparison Group ◽  
Clinical Manifestations ◽  
Diagnostic System ◽  
Pain Syndrome ◽  
Observation Group ◽  
Combined Effects ◽  
X Rays ◽  
Industrial Enterprises ◽  
Special Assessment

The results of research carried out by theFederalScientificCenterfor Medical and Preventive Technologies of Public Health Risk Management Technologies for the period 2013–2018 showed that diseases associated with the combined effects of vibration and physical overload, employees of hazardous industries develop with experience of 15 years or more. The risk group is women older than 35 years and men older than 40 years. Pathology at the stage of detailed clinical manifestations is characterized by persistent pain syndrome, and, as a consequence, a decrease in the ability to work of workers.The aim of the study was to optimize the system of diagnosis of hand diseases in workers of industrial enterprises engaged in labor activities under the combined effects of vibration and physical overload, for the development of primary prevention programs.The observation group consisted of 32 employees aged 39.3±4.3 years, with an experience of 17.4±4.3 years; the comparison group consisted of 30 employees whose working conditions are not related to the studied factors; the average age was 40.6±3.4 years, experience was 19.1±3.1 years. The examination included analysis of the results of a special assessment of working conditions; assessment of neurological status; functional tests; laboratory studies (assessment of inflammation), hand dynamometry, stimulation electroneuromyography; x-rays of the hands and wrist joints, ultrasound examination of the hands.More than half of the surveyed persons of the observation group and 3/4 of the workers of the comparison group did not make complaints. Indicators of dynamometry of workers in both groups corresponded to physiological norm (p>0.05). Analysis of the results of dynamometer with data from previous years of PMO showed a decrease in strength of muscles of the hand leading hands on 2je,0–16. 7% and from 83.3% of the employees of the monitoring group and in 44.4% of the comparison group (p<0.05), in 50 % of the cases there was a decrease in the percentage of changes in the hand force variation (HFV) in the observation group, and in 38.9% of the cases the indicators remained unchanged. According to ultrasound of the hands, signs of tendinopathy were established in 85% of the employees of the observation group in the absence of persons with similar changes in the comparison group.In order to optimize the diagnosis of diseases of the hand in industrial workers who carry out their work under the combined effects of vibration and physical overload, in the case of a decrease in the rate of carpal dynamometry by 5% or more during the year, it is recommended to conduct ultrasound of the tendon-ligamentous apparatus of the hand, which will allow timely identification of early signs of tendinopathy.

scholarly journals Features of metabolic disorders in chromium mine workers

2021 ◽  
Vol 100 (10) ◽  
pp. 1095-1102
Author(s):  
Nina V. Zaitseva ◽  
Vitalii G. Kostarev ◽  
Konstantin P. Luzhetskiy ◽  
Alexander E. Nosov ◽  
Olga Yu. Ustinova ◽  
...  
Keyword(s):  
Working Conditions ◽  
Metabolic Disorders ◽  
Comparison Group ◽  
Visceral Obesity ◽  
Endocrine System ◽  
Atherogenic Index ◽  
Observation Group ◽  
Accumulation Coefficient ◽  
Noise Vibration ◽  
Metabolic Indices

Introduction. Working conditions, clinical and laboratory status of 236 workers of a chromium mine were investigated. Materials and methods. The observation group included 162 underground employees working in conditions of the combined impact of negative occupational factors (dust, noise, vibration, tension and severity there, cooling microclimate) - class 3.3-3.4. The comparison group included 74 mine employees working in acceptable working conditions - class 2. Results. In the observation group, the pathology of the cardiovascular and endocrine system (ICD-10: I00-I99, E00-E07) was detected 2.8-3.3 times more often (p = 0.001-0.02), the relative risk of disease formation was 2.7-3.2 times higher than in the comparison group (RR = 2.7-3.2; DI = 1.44-9.2; p = 0.001-0.02). Under the conditions of the combined effect of negative production factors, as features of metabolic disorders, it was noted that the most unfavourable - abdominal form of obesity was diagnosed 1.4 times more often (42.0%, p = 0.013), the atherogenic index was 1.2 times higher, and the level HDL is 1.2 times lower than in the comparison group (p = 0.017-0.047); “Metabolic indices” - lipid accumulation coefficient (LAP) and visceral obesity index (VAI) were 1.2-1.4 times higher than the values in the comparison group (p = 0.001-0.048). Conclusions. To implement a complex of medical and preventive measures aimed at increasing life expectancy and working longevity, early prevention of CVD, including among those working in the extraction of chrome ore, it is advisable to consider the introduction of the calculation of early markers of metabolic disorders - VAI and LAP indices in the medical examination programs.

THE FEATURES OF FORMATION SOMATIC PATHOLOGIES AT INFLUENCE OF LOCAL VIBRATION IN THE CONDITIONS OF METALLURGICAL MANUFACTURE

2021 ◽  
Author(s):  
E.L. Bazarova ◽  
◽  
I.S. Osherov ◽  
N.A. Roslaya ◽  
Keyword(s):  
Working Conditions ◽  
Negative Impact ◽  
Age Groups ◽  
Average Degree ◽  
Production Environment ◽  
Local Vibration ◽  
Relative Risks ◽  
Gender And Age ◽  
Age Features ◽  
The Impact

Abstract: Relevance. Local vibration is a significant factor in the production environment of metallurgical production, which affects health and efficiency. The aim of the study is to identify the exposure, gender and age features of the formation of general somatic morbidity associated with the impact of local vibration in the production of titanium alloys. Scope and methods. The prevalence of general somatic pathology was compared in 2596 workers who have contact with local vibration, with varying degrees of harmfulness of working conditions, and non-exposed persons according to the results of periodic medical examination using the methodology of occupational risk analysis of the Research Institute of Occupational Medicine. academician N. F. Izmerov. Results. At comparison of prevalence of a somatic pathology at workers in contact to local vibration to not exhibited persons according to medical inspection, and at different degree of harm of working conditions, are revealed the raised risks of formation of diseases nervous, kostno-muscular, endocrine systems, respiratory organs, digestion, an ear, a skin, an arterial hypertensia, the mental frustration, the raised weight of a body, gynecologic diseases with a tendency of growth of the majority of them at the big levels of vibration, more often at small, less often - average degree of communication with working conditions. The frequency of pathology in exposed workers was higher in all age groups. Average degree of communication with working conditions of a gynecologic pathology at the age of 18-25 years was marked. At men frequency of a pathology of respiratory organs, digestion is revealed authentically big, than at women; an ear; skin at the big relative risks 1,2-1,3, of the raised arterial pressure and hyperglycemia. Conclusion. A higher frequency of visceral pathology of a number of body systems under the influence of local vibration of high levels may justify the need to develop differentiated preventive programs to minimize its negative impact, taking into account the identified features in sex and age groups.

CLINICAL AND PROGRESSION SPECIFICITIES OF MAIN CLINICAL SYNDROMES OF OCCUPATIONAL VERTEBRAL LUMBARSACRAL PATHOLOGY IN TRACTOR OPERATORS

2017 ◽  
pp. 20-22
Author(s):  
D.M. Vagapova ◽  
A.B. Bakirov
Keyword(s):  
Working Conditions ◽  
Body Posture ◽  
Local Vibration ◽  
Occupational Factors ◽  
Clinical Syndromes ◽  
The Impact ◽  
Agricultural Tractor

This paper focuses on the impact of working conditions of tractor operators on the development of occupational vertebral lumbar-sacral pathology. Clinical and progression specificities of occupational vertebral lumbar-sacral pathology in agricultural tractor operators are presented in there paper. The development of the pathology is related to hazardous occupational factors including general and local vibration, dynamic and static physical loads, incorrect body posture at work, cooling microclimate.

scholarly journals Analysis of comorbid pathology in oil producers

2021 ◽  
Vol 100 (5) ◽  
pp. 464-470
Author(s):  
Olga Y. Ustinova ◽  
Nina V. Zaitseva ◽  
Vitalii G. Kostarev ◽  
Elena M. Vlasova ◽  
Alyona A. Vorobyova ◽  
...  
Keyword(s):  
Working Conditions ◽  
Work Experience ◽  
Oil And Gas ◽  
Comparison Group ◽  
Significant Risk ◽  
Oil Production ◽  
Gas Production ◽  
Observation Group ◽  
Oil And Gas Production ◽  
Average Work

Aim of the study. To analyze the patterns of the comorbidity pathology formation in employees occupied in oil production. Materials and methods. Observation group - 292 employees of the oil production enterprise (100% men). The average age was 39.4 ± 10.6 (20-65) years. Average work experience is 13.1 ± 9.6 (3-22) years. The comparison group included 65 employees working in the management of the enterprise. The average age is 40.2 ± 9.8 (20-65) years. Average work experience is 18.5 ± 9.5 (5-23) years. Observation group - 292 oil and gas production operators (OGP) - 100% men. The study involved a comprehensive research program, results analysis, and mathematical modeling. Results. It is typical for oil and gas production operators to be exposed to a complex impact of harmful production factors: industrial noise, the intensity of work, and physical overload combined with chemical factors. A prior occupational risk to the employees under mentioned working conditions was classified from low (moderate) risk to medium (significant) risk. The age of employees with developed comorbid pathology in the observation group was 31.7 ± 5.4 years, work experience in the specified working conditions was 4.6 ± 1.1 years; the age of workers in the comparison group was 35.4 ± 3.9 years, work experience was 7.4 ± 2.7 years. The results of functional studies have demonstrated a complex of abnormalities in workers with little expressed clinical symptomatology. Analysis of comorbid pathology showed an increase in n according to CIRS score, increasing the working experience among oil and gas operators. Conclusion. Comorbid pathology occurs in oil production workers within ten years of working experience under conditions of combined occupational and non-occupational factors. In the comorbid pathology development, both induced intrasystemic and intersystemic disorders significantly worsens the working life prognosis.

scholarly journals Evaluating the Impact of Programmatic Mass Drug Administration for Malaria in Zambia Using Routine Incidence Data

2020 ◽  
Author(s):  
Maya Fraser ◽  
John M Miller ◽  
Kafula Silumbe ◽  
Michael Hainsworth ◽  
Mutinta Mudenda ◽  
...  
Keyword(s):  
Drug Administration ◽  
Mass Drug Administration ◽  
Malaria Elimination ◽  
Negative Binomial ◽  
Comparison Group ◽  
Malaria Incidence ◽  
Group Analysis ◽  
Routine Data ◽  
Incidence Data ◽  
The Impact

Abstract Background In 2016, the Zambian National Malaria Elimination Centre started programmatic mass drug administration (pMDA) campaigns with dihydroartemisinin-piperaquine as a malaria elimination tool in Southern Province. Two rounds were administered, 2 months apart (coverage 70% and 57%, respectively). We evaluated the impact of 1 year of pMDA on malaria incidence using routine data. Methods We conducted an interrupted time series with comparison group analysis on monthly incidence data collected at the health facility catchment area (HFCA) level, with a negative binomial model using generalized estimating equations. Programmatic mass drug administration was conducted in HFCAs with greater than 50 cases/1000 people per year. Ten HFCAs with incidence rates marginally above this threshold (pMDA group) were compared with 20 HFCAs marginally below (comparison group). Results The pMDA HFCAs saw a 46% greater decrease in incidence at the time of intervention than the comparison areas (incidence rate ratio = 0.536; confidence interval = 0.337–0.852); however, incidence increased toward the end of the season. No HFCAs saw a transmission interruption. Conclusions Programmatic mass drug administration, implemented during 1 year with imperfect coverage in low transmission areas with suboptimal vector control coverage, significantly reduced incidence. However, elimination will require additional tools. Routine data are important resources for programmatic impact evaluations and should be considered for future analyses.

DEVELOPMENT OF PROFOTOR CRITERIA BY HEALTH PARAMETERS FOR WORKERS OF BMZ WITH THE CALCULATION OF «SAFE EXPERIENCE»

2021 ◽  
Author(s):  
M.B. Otarbaeva ◽  
◽  
Sh.B. Battakova ◽  
A.U. Amanbekova
Keyword(s):  
Working Conditions ◽  
Work Experience ◽  
Average Length ◽  
Quadratic Function ◽  
Health Indicators ◽  
Length Of Service ◽  
Metallurgical Enterprise ◽  
Safe Work ◽  
The Impact ◽  
Health Parameters

Summary: This article deals with the harm to the health of workers in harmful and hazardous working conditions, which is significant and requires the immediate implementation of measures aimed at reducing the occupational risk (PR). The categorization of the PR is carried out preliminary according to the classes of working conditions during the certification of workplaces, and finally - according to the health indicators of workers. The aim of the work was to develop criteria for professional selection and professional suitability in terms of health parameters for smelters of a metallurgical enterprise with the calculation of "safe experience". Researchers have developed a new approach to a comprehensive assessment of real workloads on the health of workers - an algorithm for highlighting the final selection and aptitude of the «safe work experience» in the profession of a smelter. As a methodological basis for substantiating the «safe experience», the methodology of risk metrics was used: the dependence of the relative indicators of cases of diseases with TD were expressed by a quadratic function of the average length of service in the profession. Working conditions at the workplace of smelters at BMZ are determined by the impact of a complex of harmful production factors (class 3.1 and 3.2). The «health index» of the IZ smelters was 32.33 ± 1.33%, i.e. above the average. The dynamics of a wave-like rise and a decrease in the number of cases of diseases among smelters over the course of their service is observed. In comparison with the 1-3 year experience group, there is a probability of occurrence of RR cases of VUT, which, relative to the level in the 1-3 year experience group, gradually decreases, but in periods with 13-15 years of experience, 19-21 years has peaks of increase in the probability ZVUT up to 0.77 and up to 0.7. According to the developed algorithm, the analysis of the general morbidity in smelters was carried out and the «safe experience» was calculated as the basis for professional selection and professional suitability for medical reasons.

Arterial hypertension and cardiovascular risk factors in employees of underground mining ore minerals

2019 ◽  
pp. 945-949 ◽  
Author(s):  
A. S. Baydina ◽  
N. V. Zaitseva ◽  
V. G. Kostarev ◽  
O. Yu. Ustinova
Keyword(s):  
Risk Factors ◽  
Arterial Hypertension ◽  
Clinical Features ◽  
Work Experience ◽  
Comparison Group ◽  
Underground Mining ◽  
Observation Group ◽  
Permanent Disability ◽  
Production Factors ◽  
The Impact

Introduction. The wide spread of mining in Russia determines the high relevance of the preservation of labor resources in this industry, the prevention of occupational and production-related morbidity, reducing cases of temporary and permanent disability. Mine mining is characterized by the impact on workers of several nonspecific harmful (dangerous) factors: industrial noise, general and local vibration, the severity of labor, heating or cooling microclimate, low light. The impact of these factors predisposes to the development of pathology of the cardiovascular system.The aim of the study was to study the prevalence of hypertension among underground miners, clinical features and changes in the complex of biochemical risk factors for cardiovascular complications.Materials and methods. The observation group consisted of 98 employees of underground chrome ore mining. The comparison group (working in conditions outside the influence of the studied production factors) consisted of 75 employees of this enterprise. All employees surveyed are male. To study the impact of working conditions on the health of workers, workplaces with a characteristic set of harmful production factors (chrome, dust, noise, vibration, labor severity, labor intensity, cooling microclimate) and the same working modes (sliding three-shift schedule with a shift duration of eight hours) were selected. The study of laboratory parameters (markers of risk of cardiovascular disease) was performed by unified General clinical, biochemical and enzyme immunoassay methods.Results. In the group of underground miners, the prevalence of arterial hypertension was established (in 31.3% in the observation group and in 17.2% of the surveyed in the comparison group, p=0.042), which becomes statistically significant when the work experience is more than 10 years. The study established the clinical features of the anamnesis and objective status of employees of the mine for the extraction of chrome ore. The laboratory study in the group of miners revealed the presence of a number of paraclinic syndromes: systemic inflammation and immune activation syndrome, dyslipidemia syndrome, oxidative stress syndrome, hormonal profile disorder, renal dysfunction syndrome.Conclusions. Employees of underground mining of chrome ore are characterized by a high incidence of hypertension with experience of more than 10 years. The clinical and instrumental changes revealed in the work in the observation group give grounds for the development of directed preventive programs in this category of ore mine workers.

Endothelial dysfunction in workers in underground mining of chrome ores

2019 ◽  
pp. 914-919
Author(s):  
N. V. Zaitseva ◽  
A. E. Nosov ◽  
Ju. A. Ivashova ◽  
A. S. Baidina ◽  
V. G. Kostarev
Keyword(s):  
Shear Stress ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Working Conditions ◽  
Brachial Artery ◽  
Comparison Group ◽  
Underground Mining ◽  
Relative Increase ◽  
Observation Group ◽  
Brachial Artery Diameter

Introduction. Currently, endothelial dysfunction is considered as one of the initial stages of the pathogenesis of cardiovascular diseases. By isolating a number of biologically active compounds, the endothelium helps to maintain vascular tone and physiological rheology of the blood. Modern production of chrome ore is characterized by a variety of harmful occupational factors (chromium, dust, noise, vibration, severity and intensity of work, cooling microclimate), which can disrupt the normal functioning of the vascular endothelium and lead to the development of cardiovascular diseases.The aim of the study was to study the features of endothelial function in workers engaged in underground mining of chrome ore in harmful working conditions.Materials and methods. The study included 98 miners of the enterprise for the extraction of chrome ore. The comparison group (working in conditions outside the influence of the studied production factors) consisted of 75 employees-managers and specialists of administrative and managerial personnel of the enterprise, comparable in age and experience with the observation group. To assess the vasomotor function of the endothelium, a flow-dependent (endothelium-dependent) vasodilation test was performed using the D. S. Celermajer technique. Post-occlusive increase in brachial artery diameter, brachial artery sensitivity coefficient to endothelial shift change were evaluated.Results. The endothelial function of mine workers did not differ significantly from the comparison group with work experience up to 10 years (the values of the relative increase in the diameter of the brachial artery 12.2% in the observation group and in the comparison group 12.6%, p=0.74). With experience of more than 10 years, the value of the relative increase in the diameter of the brachial artery in the observation group with experience of more than 10 years corresponded to the signs of endothelial dysfunction and amounted to 8.6%, while in the comparison group this figure was 12.4%, which corresponded to normal endothelial function (p=0.019). Endothelial function progressively deteriorated with increasing seniority in mine workers. Conclusions. For workers engaged in underground mining of chrome ore for more than 10 years, a reduced vasodilation reaction to reperfusion after an occlusion test and a low coefficient of sensitivity of the endothelium to shear stress are characteristic. There was no statistically significant decrease in increase in brachial artery diameter and the coefficient of sensitivity of endothelium to shear stress relative to the comparison group was selected only from persons with experience more than 10 years. The comparative analysis of the results of the evaluation of the functional activity of the endothelium in workers of the compared groups indicates that the change in the functional state of the endothelium in miners is associated not only with age, but also with working conditions. The revealed changes predispose to the development of cardiovascular pathology associated with atherosclerosis in workers of underground chrome ore mining.

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