Heart rate variability in normal weight and overweight patients with controlled hypertension
Heart rate in patients with controlled hypertension
Keywords:Heart rate, hypertension, obesity
Objective: Heart rate variability (HRV) is a noninvasive marker used to predict cardiac autonomic modulation. Obesity and hypertension are two separate clinical conditions that can affect HRV. This study examined HRV in normal weight and overweight patients with controlled hypertension.
Methods: The study included patients who had hypertension under control with medical treatment. All patients underwent ambulatory electrocardiography. It analyzed the standard deviation of all normal to normal RR intervals (SDNN), one of the HRV time domain indices. It further measured the body weight and height of each patient. The patients were divided into two groups based on their body mass index (BMI): normal weight and overweight. The patient groups were examined to determine whether there was a difference between the groups in terms of the SDNN parameter.
Results: The mean age of 54 patients participating in the study was 77.5 (51-89). The mean SDNN of the patients was 111.4±41.2. The mean SDNN of the normal BMI group was 110.7±39.1 and 112.5±44.8 in the overweight group. There was no statistically significant difference between the groups (p=0.876).
Conclusion: Hypertension and obesity together can affect HRV. Obesity does not affect HRV in the patient group with controlled hypertension. Although hypertension caused a decrease in SDNN values, obesity did not cause a further reduction in these values.
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