Clinical and anamnestic factors of chronic migraine and drug-inducedheadache

Introduction. Migraine remains one of the most common forms of headache and is a serious medical problem that requires improved therapeutic strategies. Considering the widespreadprevalence of chronic migraine (CM), taking into account the factors influencing the outcome of treatment can help to create more personalized and, therefore, more effective therapies. Aim. To study the clinical and anamnestic factors influencing the effectiveness of treatment of patients with CM. Materials and methods . 54 patients aged 18 to 50 years with CM with and without drug-induced headache (LIGB) were observed. The frequency and severity of migraines were assessed every 2 months for 12 months. The survey of patients took place during each visit and included an assessment of all clinical and anamnestic data regarding headache (GB). Results . Patients with CM did not significantly differ in clinical and anamnestic parameters from patients with XM and LIGB. The presence of LIGB in migraine is not associated with the frequency of migraine hypertension and does not change the response to therapy (p = 0.072). During treatment, there was an average decrease in the frequency of migraine headaches per month by 2 episodes (β = -2.15, p < 0.001). The initial severity of GB was associated with the number of days with non-migraine GB (β = -0.23, p = 0.003), the provoking effect of tyramine-rich foods (β = 3.91, p = 0.049), physical fatigue (β = 3.51, p = 0.047), and an increase in blood pressure in the migraine pattern (β = 4.14, p = 0.047). However, these factors did not affect the decrease in the frequency of GB and were not associated with the presence of LIGB. Conclusion . In СM, the number of days with non-migraine GB, the presence of a provoking effect of food rich in tyramine, physical fatigue, and an increase in blood pressure in the migraine attack pattern are associated with the number of days with migraine per month, but do not affect the decrease in the frequency of GB in dynamics and LIGB.