Diagnosing of heart rate variability disorders in patients with diabetes mellitus of type 1
R.R. MUKHARYAMOVA¹, S.D. MAYANSKAYA¹, F.V. VALEYEVA¹, M.M. MANGUSHEVA¹, L.T. BAREYEVA², N.G. LATYPOVA²
¹Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012
²Republican Clinical Hospital of the Ministry of Healthcare of the Republic of Tatarstan, 138 Orenburgskiy Trakt, Kazan, Russian Federation, 420064
Mukharyamova R.R. — postgraduate student of the Department of Therapy with Endocrinology course, tel. +7-917-900-76-70, e-mail: rmukharyamova@amtec-kazan.com1
Mayanskaya S.D. — D. Med. Sc., Professor of the Department of Therapy with Endocrinology course, tel. +7-905-316-99-66, e-mail: smayanskaya@mail.ru1
Valeyeva F.V. — D. Med. Sc., Professor of the Department of Therapy with Endocrinology course, tel. +7-917-255-55-79, e-mail: val-farida@yandex.ru1
Mangusheva M.M. — Cand. Med. Sc., Assistant Professor of the Department of Therapy with Endocrinology course, tel. +7-917-297-56-06, e-mail: rmukharyamova@amtec-kazan.com1
Bareyeva L.T. — Head of Endocrinology Department, tel. +7-917-913-53-32, e-mail: luizabar@yandex.ru2
Latypova N.G. — Doctor of the Department of Functional Diagnostics, tel. +7-917-776-45-59, e-mail: rmukharyamova@amtec-kazan.com2
The aim of the research was to assess the diagnostic value of heart rate variability (HRV) indicators in diabetes cardiovascular autonomic neuropathy (DCAN) diagnostics in patients with diabetes mellitus of type 1. The study involved the examination of HRV (independent tests and 24-hour ECG) in 30 patients with type 1 diabetes. The prevalence of DCAN in patients with diabetes mellitus was 43%. Patients with DCAN had longer duration of diabetes, lower glomerular filtration rate and suffered from peripheral neuropathy more often than patients without DCAN. The ОНЧ, НЧ и ВЧ fluctuations reduced fasterthan the changes in vegetative tests, however in 85% of cases these changes were accompanied by at least one positive result of vegetative tests. The deep breathing test had the highest diagnostic value among the battery of cardiovascular tests.
Key words: diabetes cardiovascular autonomic neuropathy, type 1 diabetes mellitus, heart rate variability, diagnostic value, vegetative tests.
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