Ultrasound features of peripheral angiodystonic syndrome in vibration disease stage 1 due to local vibration
Vibration disease (VD) is the most common occupational disease in many regions of Russian Federation. Peripheral angiodistonic syndrome is the main indication symptom of the disease. Purpose. To study the features of peripheral blood flow in the forearm arteries in the vibration disease stage 1 due to local vibration using the method of ultrasound dopplerography. Materials and methods. The radial and ulnar arteries in patients with vibration disease stage 1 due to local vibration were examined by ultrasound in B- and PW-mode. These materials present the results of an ultrasound assessment of the speed indicators of the main arteries of the forearm. The selection criteria for patients in the study ware the presence of pronounced clinical manifestations of angiodystonic syndrome, confirmed by instrumental research methods and data on the sanitary and hygienic characteristics of working conditions, the absence of cardiovascular chronic diseases (ischemic heart disease, heart defects, rhythm and conduction disturbances), rheumatic, oncological, infectious diseases, osteo-traumatic changes in the upper extremities. Results. The group of patients with the established diagnosis of vibration disease stage 1 due to local vibration was studied. During ultrasound, there was a decrease of the pulse blood flow rate on the ulnar artery separetely, an increase of peripheral resistance indicators (pulsation index and resistance index) in the radial and ulnar arteries symmetrically on both upper limbs.The revealed changes were determined with the same frequency in men and women. Conclusions. A significant decrease of speed indicators on the ulnar artery and an increase of peripheral resistance indicators are detected already at the initial stages of vibration disease. Thus, the method of ultrasound examination of the main arteries of the middle caliber of the upper extremities is currently the only available and objective method for examining the vascular system in vibration disease.