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Estimation of heart rhythm turbulence in patients with rheumatic heart disease

[Original research] [Internal diseases]
Vadim Sergeevich Petrov; Kamila Ismailovna Namazova; Viktoria Igorevna Tokareva; Anna Vladimirovna Prokhorova;

Heart rate turbulence (HRT) was studied in 444 patients with heart valvule defects with an assessment of turbulence onset (TO) and turbulence slope (TS) over ten years. Of these, 260 patients had the rheumatic heart disease (RHD). During the observation period in patients with RHD, the TS score increased significantly by 1.78 (–2.71; –0.84) ms/RR; the value of TO 0.50 (–0.89; 0.79) % remained virtually unchanged. When comparing the groups of patients, it was found that in patients with mitral valve insufficiency, the severity of changes in HRT was less, and with calcific aortic stenosis, it was greater than in those studied with RHD. When assessing HRT in survivors and deceased, the worst HRT in the group of survivors and a decrease in the chance of an unfavorable outcome with increase in TS were revealed (Odds Ratio 0,505 (0,312; 0,818)).

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Keywords: rheumatic heart disease, mitral stenosis, heart rhythm turbulence


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