臨床神経学

<シンポジウム31―2>片頭痛の慢性化,難治化のメカニズムと治療

片頭痛の経過・自然歴

古和 久典, 中島 健二

鳥取大学医学部脳神経医科学講座脳神経内科学分野〔〒683―8504 鳥取県米子市西町36―1〕

Migraine is one of the common diseases, suffering 8.4 million patients in Japan. Recently conditions associated with chronic migraine were considered to be worse than episodic migraine in socio-economic status, health-related quality of life, and headache-related burden. Preventing the chronification, and improving treatment and management, the natural disease course could give us some clues. Several reports suggested that a population prevalence of chronic migraine is about 2% and approximately 2.5% of patients with episodic migraine develop new-onset chronic migraine each year. The risk factors for converting episodic to chronic migraine were demonstrated as follows: age, low education socioeconomic status, head injury, attack frequency, obesity, medication overuse, stressful life events, caffeine overuse, snoring, other pain syndromes, allodynia, proinflammatory states, prothrombotic states, and specific genes. It was also focused in comobidity with chronic migraine, such as depression, anxiety, chronic pain, asthma, bronchitis, hypertension, and so on. The ratio converting in reverse was reported as a fourth in two years. We should recognize the burden of migraine patients, and improve patients' outcome under reducing risk factors and assessing the effect of treatment on headache progression.
Full Text of this Article in Japanese PDF (193K)

(臨床神経, 51:1147−1149, 2011)
key words:疫学,有病率,慢性化,危険因子,共存症

(受付日:2011年5月20日)