[Right ventricular function and pulmonary circulation hemodynamics in patients with vibration disease].
OBJECTIVE
To study contractile and diastolic function of the right ventricle, mechanic activity of the right heart, hemodynamics of the pulmonary circulation in patients with vibration disease (VD).


METHODS
The study group consisted of patients in contact with vibration (15 subjects without VD symptoms, 44 patients with VD of the first degree and 10 patients with VD of the second degree). 20 control males had no contact with vibration.


RESULTS
VD patients developed right ventricular (RIO dysfunction: disturbed diastolic function, hypodynamic syndrome of the first degree accompanied with reduced ejection fraction, stroke output and cardiac index. In VD, RV dysfunction appears in parallel with left ventricular dysfunction due to high pressure in pulmonary circulation and interventricular interaction.


CONCLUSIONS
VD-specific features of the lesser circulation and RV function give rise to formation of heart failure. Thus, early diagnostic and prophylactic measures should be taken in subjects in contact with vibration.
Tret'iakov
S V
SV
Shpagina
L A
LA
D018450:Disease Progression; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D009784:Occupational Diseases / Q000150:complications / Q000503:physiopathology*; D011379:Prognosis; D011652:Pulmonary Circulation / Q000502:physiology*; D011669:Pulmonary Wedge Pressure / Q000502:physiology; D012720:Severity of Illness Index; D013318:Stroke Volume / Q000502:physiology; D018497:Ventricular Dysfunction, Right / Q000209:etiology / Q000503:physiopathology; D016278:Ventricular Function, Right / Q000502:physiology*; D014732:Vibration / Q000009:adverse effects*