Prospects of studying structural and functional state of cardiovascular system in vibration disease patients with arterial hypertension

Abstract

To study influence of vibration factor on cardiovascular system in vibration disease patients with arterial hypertension in late post-contact period, the authors conducted complex structural and functional studies of heart in these patients. The same patients were studied initially and in 6 years of observation. The study covered 12 individuals (average age initially was 45.5±3.0 years). Average length of service with vibration was 17.9±2.9 years. Duration of post-contact period was under 5 years. The examinees were machine assembly workers and riveters assemblers. In vibration disease and arterial hypertension in late post-contact period, there is transformation of left ventricle hyperfunction, mostly by isotonic type, into relatively stable compensation with moderate hypertrophy, with worsened diastolic left ventricle dysfunction both due to active and passive relaxation disorders. Findings also are marked increase of left heart volume, lung artery pressure - that increases load on right ventricle and leads to its diastolic dysfunction.