RESUMO
AIM: to study clinical and metabolic risk factors for cardiovascular autonomic neuropathy in patients with type 2 diabetes mellitus (T2DM). SUBJECTS AND METHODS: One hundred and fifty-seven patients were examined. According to the results of ECG tests and cardiointervalography, the patients were divided into 2 groups: 1) 45 patients without cardiovascular autonomic neuropathy; 2) 112 patients with this condition. RESULTS: The T2DM patients with cardiovascular autonomic neuropathy significantly differed from those without autonomic disorders in DM duration, insulin level, insulin resistance indices (HOMA-IR, FIRI), atherogenicity coefficient, and high-density lipoprotein levels. The glycated hemoglobin level of more than 9% affected the values of autonomic ECG tests. CONCLUSION: In patients with T2DM, the development of cardiovascular autonomic neuropathy is affected by not only the duration of DM and the decompensation of carbohydrate metabolism, but also by hyperinsulinemia and insulin resistance, the low level of high-density lipoproteins, and the high coefficient of atherogenicity.
