Why the study?
Are heart rate variability and QTc dispersion associated with cardiac death in patients with diabetes mellitus?
Are heart rate variability and QTc dispersion associated with cardiac death in patients with diabetes mellitus?
In diabetic patients, autonomic neuropathy and increased QTc dispersion (indicating heterogeneous ventricular repolarization) are associated with cardiac death.
May flag higher cardiac death risk in diabetes; hypothesis-generating and should not yet change risk stratification.
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Nakagawa et al. (1994) studied this question.
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