Depression comorbidity in chronic tension-type headache: Own experience and literature review

Comorbid depression in tension-type headache is a condition well known. A link correlates the two disorders but the mechanism is not perfectly clear. The purpose of this work is to give our experience on the subject and to compare it with the literature data. We investigated a number of cases of tension-type headache patients, with the aim of fi nding signs of depression as comorbidity. The results showed a depression comorbidity in tension-type headache, with a 67% percentage, in line with the literature data. There is a evidence of comorbidity of depression in tension-type headache. The mechanisms that bind the two disorders appear to be explained by the activity ofneurotransmitters common to both.