Arq. Bras. Cardiol. 2017; 109(6): 620-621

Cardiac Autonomic Functions May be Influenced by Body Weight

Mustafa Gulgun

DOI: 10.5935/abc.20170154

To the Editor,

I read the paper by Silva et al. entitled ‘‘Sensitivity, Specificity and Predictive Value of Heart Rate Variability Indices in Type 1 Diabetes Mellitus’’ published in Arquivos Brasileiros de Cardiologia in March 2017. They aimed to compare Heart Rate Variability (HRV) indices and evaluate their sensitivity, specificity, and predictive value in young type 1 diabetic patients and healthy volunteers. It was showed a decrease in sympathetic and parasympathetic activities, as well as overall variability of autonomic nervous system in the diabetic group. I would like to congratulate Silva et al. for their valuable effort in this study. I also have a few comments to do.

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