Why the study?
Does respiratory sinus arrhythmia correlate with parasympathetic cardiac control in an anesthetized dog model?
Population
7 chloralose/urethan-anesthetized dogs
Comparison
Reversible vagal block by cooling under various… vs Baseline (without cooling)
Design
Preclinical
Authors
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RSA may indicate parasympathetic control in anesthetized dogs; leaves open translation to human clinical use.
Does respiratory sinus arrhythmia correlate with parasympathetic cardiac control in an anesthetized dog model?
Respiratory sinus arrhythmia (peak-to-peak variations in heart period during spontaneous respiration) strongly correlates with parasympathetic cardiac control, suggesting its utility as a noninvasive indicator.
Katona et al. (1975) studied this question.