Key result
Modeled high HRV alters distal cerebral circulation while low HRV reduces central heart efficiency.
Why the study?
The association between heart rate variability and altered cerebral hemodynamics remains debated due to short-term measures and limited high-resolution deep cerebral data.
Does altered heart rate variability impact deep cerebral and central hemodynamics in an ideal young healthy patient at rest?
Population
An ideal young healthy patient at rest simulated via a cardiovascular-cerebral model
Comparison
Baseline vs increased HRV vs decreased HRV based on SDNN of RR beats
Design
In silico computational simulation study
Authors
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Baseline HRV may optimize cardiac efficiency and cerebral stability in models; leaves open clinical relevance in humans.
Does altered heart rate variability impact deep cerebral and central hemodynamics in an ideal young healthy patient at rest?
In silico modeling suggests that baseline HRV is optimal for balancing central cardiac efficiency and cerebral hemodynamic stability, with increased HRV being detrimental distally and decreased HRV reducing heart efficiency.
Scarsoglio et al. (2021) studied Healthy resting condition. Altered Heart Rate Variability (HRV) vs. Baseline HRV was evaluated on Deep cerebral and central hemodynamics (pressure and flow rate). In a computational model, increased heart rate variability induced a higher probability of altered mean and extreme values in the distal cerebral circulation, while decreased heart rate variability reduced central heart efficiency.
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