title: [Structural and functional changes of myocardium in Chernobyl disaster clean-up workers with atrial fibrillation].
abstract: Particularities and clinical importance of the structural and functional changes of myocardium were estimated in Chernobyl disaster clean-up workers with atrial fibrillation (AF). We examined 122 men with AF, which was associated with ischemic heart disease and arterial hypertension. Paroxysmal AF was diagnosed in 42 patients, 80 patients had permanent AE Control group comprised 80 men without AF. Echocardiography and Doppler studies were performed using ultrasound scanner Aloka SSD-630 (Japan). Significant structural and functional changes of the heart were revealed already in paroxysmal AF and became more pronounced in permanent AF. Increased left atrial size, its ratio to left ventricular end diastolic diameter, diastolic dysfunction were important echocardiographic predictors of AF. Heart walls thickening was accompanied by disorders of myocardial relaxation, increase in myocardial mass led to ischemia, and together they promoted overload, dysfunction of atrium and development of AF. Obligatory echocardiographic examination of the Chernobyl disaster clean-up workers with ischemic heart disease and arterial hypertension is necessary for predicting AF early, ordering adequate therapy in proper time and improving prognosis.
authors.forename: I M
authors.initials: IM
authors.lastname: Khomaziuk
authors.forename: Zh M
authors.initials: ZhM
authors.lastname: Habulavichene
authors.forename: V A
authors.initials: VA
authors.lastname: Khomaziuk
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology / Q000473:pathology*; D047852:Chernobyl Nuclear Accident; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*; D009784:Occupational Diseases / Q000209:etiology* / Q000473:pathology; D016273:Occupational Exposure / Q000009:adverse effects*; D011832:Radiation Injuries / Q000209:etiology* / Q000473:pathology; D011848:Radioactive Pollutants / Q000506:poisoning*; D014455:Ukraine
chemical_list: D011848:Radioactive Pollutants