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Minerva Endocrinology 2022 Feb 10

DOI: 10.23736/S2724-6507.20.03346-5


language: English

The role of heart rate variability and heart rate turbulence in diabetic retinopathy

Zafer YALIM 1 , Sümeyra ALAN YALIM 2, Özgür EROĞUL 3, Mustafa DOĞAN 3

1 Department of Cardiology, Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey; 2 Department of İnternal Medicine, Afyonkarahisar State Hospital, Afyonkarahisar, Turkey; 3 Department of Ophthalmology, Afyonkarahisar Health Sciences University Hospital, Afyonkarahisar, Turkey


AIMS: The aim of this study was to evaluate the cardiac autonomic functions of individuals with asymptomatic diabetic retinopathy (DR) and no obvious heart disease by heart rate turbulence (HRT) and heart rate variability (HRV) analysis.
METHODS: A total of 72 patients with Type II Diabetes Mellitus: 20 non-retinopathic (NRDM), 26 non-proliferative retinopathic patients (NPDR) and 26 proliferative retinopathic patients (PDR) were enrolled in this cross-sectional study.
RESULTS: The HRV parameters of Standard deviation of NN intervals (SDNN) (119.8±11.7, 101.1±20.2, 100.6±17.04), Standard deviation of the average NN intervals (SDANN) (108.3±10.8, 91.2±17.5, 93.6±18.4), SDNN Index (49.5±5.1, 40.1±13.4, 38.6±12.7), Root mean square of successive RR interval differences (RMSSD) (28.3±5.1, 22.3±7.5, 26±9.2) and Triangular index (34.4±4.3, 29.7±8.8, 27.3±6.7) were significantly lower in the NPDR and PDR groups than in the NRDM group (for all p<0.05). Also, there was a statistically significant higher Turbulence Onset (-1.80±0.7, -1.1±0.9, -0.43±0.81) and lower Turbulence Slope (8.05±2.59, 5.82±3.39, 4.53±2.07) in HRT parameters in patients in the NPDR and PDR groups than in the NRDM group (respectively, NRDM, NPDM, PDM, for all p<0.001).
CONCLUSIONS: We found that HRV and HRT parameters had a significant deterioration in retinopathic individuals compared to the group without retinopathy. We think that HRV and HRT analysis can have an important role in the evaluation of these patients.

KEY WORDS: Diabetic retinopathy; Heart rate turbulence; Heart rate variability; Arrhythmias; Cardiac autonomic function

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