Clinical characteristics of migraine in patients with calcified neurocysticercosis.

Abstract

Patients with neurocysticercosis (NCC) may have an increased frequency of migraine. We studied the characteristics of migraine attacks in patients with calcified NCC on brain imaging. Of 350 migraine patients who visited our outpatient department from January 2016 through June 2018, 166 had undergone brain imaging. Seventy-two patients with migraines had calcified NCC. The migraine attacks of the patients with calcification (MiC) were compared with those of 94 patients without calcification (MiNC). Side-locked headaches were seen in 48.6% of the MiC patients. Aura preceding the migraine attack was more common in the MiC group than in the MiNC group (22.22% vs 7.4%; p=0.001). The MiC group had fewer headache episodes per month (5 vs 6; p<0.0001) with fewer common associated features (62.5% vs 84.1%; p=0.006). They also required fewer drugs for secondary prophylaxis (2 vs 3; p=0.002). Some of the clinical characteristics of migraine attacks are sufficiently different in patients with and without NCC. This may suggest some influence of NCC in the pathophysiology of migraine to account for alterations in the clinical manifestations of the disease. Whether this difference could be inferred as NCC having a causative role in migraine needs further research.