Modulation of heart rate and heart rate variability during animal-assisted treatment of patients in a minimally conscious state: A randomized controlled crossover study.
Fabio Carbone, Carla Maria Braune, Rahel Marti et al.
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In 30 seconds
This randomized controlled crossover study examined the effects of animal-assisted treatment (AATx) on heart rate (HR) and heart rate variability (HRV) in 21 patients with minimally conscious state (MCS). Results indicated a significant decrease in mean HR by 12.75 beats per minute and an increase in standard deviation of normal-to-normal intervals (SDNN) by 15.76 ms during AATx compared to treatment as usual, suggesting enhanced autonomic regulation.
Key findings
- Mean heart rate decreased by 12.75 beats per minute during AATx compared to treatment as usual.
- Standard deviation of normal-to-normal intervals (SDNN) increased by 15.76 ms during AATx.
- AATx showed potential for enhancing parasympathetic activation in MCS patients.
- Other HRV parameters did not show significant effects, but trends aligned with hypotheses.
Why it matters
Understanding the psychophysiological effects of interventions like AATx can inform treatment strategies in neurorehabilitation, particularly for patients with limited behavioral responses. Enhanced autonomic regulation may indicate improved emotional engagement and recovery potential.
What to keep in mind
The study faced limitations related to sample size and recording quality.