Summary
Meta-analysis of cohort studies found that low HRV in cardiovascular disease patients more than doubled the risk of all-cause death and significantly increased cardiovascular event risk.
Methods
Meta-analysis of cohort studies on HRV and mortality in CVD patients
Key Findings
- Low HRV associated with 2.27x higher all-cause mortality risk
- Cardiovascular event risk increased 1.41x
- Association independent of other risk factors
- Both time and frequency domain measures predictive
Limitations
Primarily studied in patients with existing heart disease
What This Means for You
For those with heart conditions, HRV is a serious health marker. Low HRV in this population predicts worse outcomes. Work with your doctor on interventions that might improve autonomic function.
Source
Read the original paper in Autonomic Neuroscience ↗
Added to HRV Zone: 2025-01-07