Background: Tension-type headache (TTH) is the most common primary headache. Headache pain impacts most of the population at some point in life at an enormous cost to day to day functioning. While autonomic dysfunction is known in functional headaches very few studies describe its role in TTH. Heart Rate Variability (HRV) is a non-¬invasive indicator of autonomic nervous system activity and is a quantitative marker of sympathetic and parasympathetic modulations in various autonomic disorders.
Aims and objectives: The study objective was to assess HRV in TTH and compare with controls. Also, we aimed to study if short-term 5 minute HRV recording is an effective indicator of autonomic dysfunction in TTH patients.
Methods: HRV was recorded in 50 diagnosed patients of TTH selected as per International Headache Society Diagnostic Criteria (age 20-50 years) and age and sex matched controls. HRV recording and analysis was done using physiopac and HRV Analysis Software 1.1 Finland. The overall autonomic tone, parasympathetic and sympathetic functions and sympatho-vagal balance were quantified by using various parameters.
Results: We found statistically significant difference (p
Frequency domain analysis, Tension type headache, sympathetic hypofunction