Clinical Study of Myofascial Trigger Points(MTrPs) Injection in the Treatment of Chronic Migraine

Chronic migraine is a common disease in China, with a high incidence among the elderly, and has a significant impact on patients' quality of life. Currently, both domestic and international studies have confirmed that glucocorticoid injection at myofascial trigger points(MTrPs) can alleviate patients' pain symptoms. MTrPs injection is safe and easy to operate, and can improve the clinical management efficiency of patients with chronic migraine. Therefore, we designed a prospective, randomized controlled, blinded outcome, non-inferiority study to compare the long-term clinical efficacy of glucocorticoid injection at myofascial trigger points and greater occipital nerve block injection in treating chronic migraine. Patients will be randomly divided into two groups and receive either glucocorticoid injection at MTrPs or greater occipital nerve. After treatment, patients will be followed up for 2 years. Their NRS scores, attack frequency, attack duration, HIT-6 scores, Patient Global Impression of Change(PGIC) scale, and adverse reactions will be recorded at 2 weeks, 4 weeks, 8 weeks, 12 weeks, and 24 weeks. If the results indicate that the clinical efficacy of myofascial trigger point injection for chronic migraine is not inferior to that of injection at intra-articular injection, it will provide a safe and simple treatment option that is easy to promote for patients who do not respond to conservative treatment.