A review of several studies involving 917 patients found that non-invasive vagus nerve stimulation (nVNS) can help manage migraine symptoms. The analysis showed that people using this method had fewer headache days each month compared to those who did not use it. It also led to a reduction in the amount of acute medication used for pain.
In addition to fewer headaches, patients reported lower levels of pain intensity during attacks. Some participants also saw improvements in how quickly their pain was relieved or eliminated within two hours of treatment. These results suggest that nVNS could be a helpful non-drug option for both treating and preventing migraines.
Because this is a meta-analysis of existing trials, the evidence is still developing. The study did not provide specific data on long-term safety or side effects. More high-quality research is needed to confirm how well this treatment works over time and to ensure it remains safe for all patients.
