Why the study?
Which non-invasive maneuvers best estimate autonomic nervous control of the heart in patients with diabetes mellitus?
Population
Nondiabetic and diabetic subjects
Comparison
Maneuvers that modify cardiac vagal tone vs Nondiabetic subjects
Design
Cross-sectional
Authors
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May simplify non-invasive autonomic assessment in diabetes; leaves open prospective validation before practice change.
Which non-invasive maneuvers best estimate autonomic nervous control of the heart in patients with diabetes mellitus?
A single deep breath combined with the Valsalva maneuver provides a reliable, non-invasive assessment of cardiac autonomic function in diabetic patients, avoiding the need for invasive testing.
Bennett et al. (1978) studied this question.
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