Awareness of hypoglycemia and spectral analysis of heart rate variability in type 1 diabetes.

Abstract:

AIMS:To investigate the relationship of unawareness of hypoglycemia with spectral analysis of heart rate variability (HRV) and clinical variables in type 1 diabetes (T1D) individuals. METHODS:Participants with type 1 diabetes mellitus (type 1 diabetes) were prospectively assessed for hypoglycemia awareness using the Pedersen-Bjergaard method and were classified as normal hypoglycemia awareness, impaired hypoglycemia awareness and hypoglycemia unawareness. Indices of HRV in frequency domain were evaluated and Ewing tests were used for the diagnosis of cardiovascular autonomic neuropathy (CAN). RESULTS:Ninety-eight participants with T1D (mean age 26 years, average diabetes duration 13 years, and mean HbA1c 8.4%) were included in this study. The prevalence of hypoglycemia unawareness was 28%. No significant difference was observed on the prevalence of CAN among groups of different hypoglycemia awareness (p = 0.740). On regression analyses, abnormal results of HRV in frequency domain were not associated with unawareness of hypoglycemia. On univariable regression analysis, age, diabetes duration and estimated creatinine clearance were associated with unawareness of hypoglycemia. CONCLUSION:CAN as assessed by Ewing tests and spectral analysis of HRV is not associated with unawareness of hypoglycemia. There is association of age, diabetes duration and renal deficit with unawareness of hypoglycemia.

authors

Paes T,Rolim LC,Filho CS,de Sa JR,Dib SA

doi

10.1016/j.jdiacomp.2020.107617

subject

Has Abstract

pub_date

2020-08-01 00:00:00

pages

107617

issue

8

eissn

1056-8727

issn

1873-460X

pii

S1056-8727(20)30373-1

journal_volume

34

pub_type

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