Vagally mediated heart rate variability in headache patients--a systematic review and meta-analysis.


OBJECTIVE Vagal nerve activity-indexed by heart rate variability (HRV)-has been linked to altered pain processing and inflammation, both of which may underpin headache disorders and lead to cardiovascular disease (CVD). Here we examined the evidence for differences in parasympathetic (vagal) activity indexed by time- and frequency-domain measures of HRV in… (More)
DOI: 10.1177/0333102415583989