Abstract
Abstract Background and aims: to identify heart rate variability (HRV) and blood pressure (BP) in patients with type 1 diabetes depending on the duration of disease and glycemic control. Materials and methods: 43 patients were examined. All patients were divided into 2 groups according to the level of НвА1с: group 1 (n=21) with НвА1с ≤ 7.5% and group 2 (n=22) with НвА1с > of 7.5%. All patients underwent daily monitoring of electrocardiogram Holter and ambulatory BP monitoring within 24 hours in parallel with long term monitoring of blood glucose. Results: Hyppoglycemia is characterized by significant decrease root mean square difference between adjacent RR intervals (RMSSD) (r = −0.531; p = 0.003) and number of consecutive RR intervals, the difference between them is more than 50 ms expressed as a percentage of total number of RR-intervals (pNN50%) (r = the −0.503; p = 0.005) and increase of Low Frequency/High Frequency Ratio (LF/HF) (r = 0552; p = 0.002). Patients with hypoglycemia had significantly higher daily diastolic pressure area index (DPAI24) (p = 0.016), and daily diastolic pressure time index DPTI24 (p = 0.025). Conclusion: our findings demonstrate the need to reduce the frequency of hypoglycemia episodes in patients with T1DM.
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