Circadian patterns of heart rate variability in normals, chronic stable angina and diabetes mellitus.


The purpose of our investigation was to compare circadian patterns of heart rate variability as assessed by 24-h ambulatory electrocardiographic (ECG) recordings in normal subjects, chronic stable angina, and Type 1 diabetes mellitus. The study population consisted of three groups: 12 normal subjects, 23 chronic angina patients, and 23 Type 1 diabetics. For… (More)