Features of Volume Sphygmography Parameters in Men Working under the Influence of Industrial Noise

INTRODUCTION: Noise is one of the most common hazardous physical factors that a person is exposed to at the workplace. It is important to study changes in the cardiovascular system induced by exposure to industrial noise. AIM: To evaluate the effect of industrial noise on the parameters of volume sphygmography in men of working age. MATERIALS AND METHODS: The study included 205 men of the working age undergoing periodic medical examinations at the polyclinic of the Nizhny Novgorod Research Institute of Hygiene and Occupational Pathology of Rospotrebnadzor. Two groups of the subjects were identified: the main group (150 people) — working under the influence of industrial noise exceeding the maximum permissible level, and the comparison group (55 people) — working out of contact with hazardous industrial factors. To assess the stiffness of the vascular wall, all patients underwent volume sphygmography on VaSera VS-1500N device (FukudaDenshi, Japan). RESULTS: The formed groups were comparable in the main cardiovascular risk factors. However, of attention was the trend towards an increase in the share of smoking patients in the control group. The analysis of the parameters. of volume sphygmography showed a statistically significant increase in the stiffness index of the vascular wall on the right and left, in the estimated age of the arteries and also frequent (7.5 times) detection of syndrome of early vascular aging in the main group. CONCLUSION: The identified deviations of sphygmography parameters are a marker of early changes in the vascular wall in people working with noise. It is advisable that an in-depth study of the state of the cardiovascular system be conducted including assessment of vascular rigidity, in persons exposed to this industrial factor.