Angiodystonic syndrome in different stages of the effects of vibration

Introduction. The problem of vibration exposure remains relevant in modern occupational pathology. Modern epidemiological studies show exposure to vibration to be associated with peripheral circulatory disorders, arteriole spasm and the subsequent development of dystrophic changes in the vascular wall. The purpose of the study. To identify the features of the trend in the pulsation index (PI) of the upper extremities in stages 1 and 2 of effects of vibration from exposure to whole-body and hand-arm vibration by ultrasound. Materials and methods. Ultrasound scanning of the arteries of the upper extremities was performed in sixty seven patients. In contrast to effects of vibration, the inverse ratio of the total growth rate has been established to be observed from whole-body and hand-arm vibrations only from the whole-body vibration, that is, a higher growth rate occurs at stage 2 of effects of vibration was measured on the distal part of the forearm. Results. However, at the same time, changes from whole-body and hand-arm vibration are more pronounced in effects of vibration stage 1. Limitations. The main disadvantages of ultrasound are the long-term and operator-dependent method. Conclusion. With an increase in the degree of effects of vibration, regardless of the effects of such harmful production factors as whole-body and hand-arm and only whole-body vibration, the difference in changes in the PI index decreases, which is significantly pronounced at the 1st stages of the disease. Standardization of the protocol of ultrasound examination of the upper extremities will subsequently help to assess the dynamics and level of initial angiodystonic lesions in patients whose diagnosis can prevent irreversible consequences of chronic ischemia at the early stages of development.