92 A descriptive study on chronic migraine characteristics Authors: Rahman Abdul Aman, Raja Premnath Year: 2017, Volume: 4, Number: 1 Medpulse International Journal of ENT 2019/Nov/09 (0 downloads) Abstract Objectives: The aim of this study is to highlight the prevalence of chronic migraine and describe chronic migraine headache characteristics observed in patients attending the ENT outpatient department at Madha medical college hospital and research institute, Chennai. Study design: A prospective descriptive study of one year including 312 patients with chronic migraine attending the ENT outpatient department. Results: Among 312 patients with chronic migraine, 73.71% were women and 26.28% were men. The mean age of the female and male patients was 31.87 years and 34.17 years respectively. 66.02% of patients with chronic migraine were married and 33.97% were unmarried. Majority (74.03%) had migraine without aura and 25.96% had migraine with aura. 91% of the patients included in our study were first time attendants in our hospital outpatient department. The pain characteristics were predominantly unilateral either left or right side. Throbbing headache (70.51%) was the most common characteristic of headache. The most consistent autonomic feature observed was nausea, followed by phonophobia (88.78%) and photophobia (68.26%).The other most common associated autonomic feature was sweating followed by lacrimation. Headache was aggravated by activity in 94.23% of our patients. In this study stress, hunger and sleep disturbance were the common trigger factors. On comparison, diagnosis of migraine with and without aura, headache duration, onset of headache, headache features of photophobia and phonophobia and trigger factors like hunger, exercise, sleep disturbance and odor had statistical gender difference. (P < 0.05). Conclusion: This study adds to the descriptive data relating to the incidence, patterns, trigger factors and associated features of chronic migraine, thus consolidating the observations of previous studies on the chronic migraine headache characteristics. The findings of this study would aid in better diagnosis of chronic migraine at an early stage thereby improving patient compliance and better response to treatment Keywords: Migraine, aura, chronic migraine, headache and vomiting.