Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
ORIGINAL ARTICLES
Prevalence and Clinical Hallmarks of Primary Exercise Headache in Middle-aged Japanese on Health Check-up
Sayori HanashiroTakanori TakazawaYuji KawaseKen Ikeda
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JOURNAL OPEN ACCESS

2015 Volume 54 Issue 20 Pages 2577-2581

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Abstract

Objective We examined the prevalence and clinical features of primary exercise headache (PEH) in middle-aged Japanese population.
Methods A headache specialist interviewed middle-aged subjects serially on health check-up. The primary headaches were diagnosed according to the International Classification of Headache Disorders (ICHD-III beta). Cardiovascular disease (CVD) risk and radiological findings were analyzed. Prevalence of PEH and clinical features were assessed.
Results Among 2,546 subjects (1,588 men and 958 women), thirty subjects (13 men and 17 women) were diagnosed with PEH. The prevalence of PEH was 1.19%, 0.82% in men and 1.77% in women. The mean age [standard deviation (SD)] of the subjects was 44.3 (8.8) years and their mean duration (SD) of PEH was 4.5 (7.0) months. Headache occurred bilaterally (23 patients) or unilaterally (7 patients), and in the occipital (16 patients), frontal (10 patients) or diffuse region (4 patients). The persistent headache time ranged from 5 minutes to 12 hours. The degree of headache severity was classified as mild (13 patients), moderate (5 patients) or severe degree (12 patients). PEH was triggered by gym training (16 patients), swimming (6 patients), running (6 patient) and skiing (2 patients). All patients were exercise beginners or played a sport occasionally. No patients visited physicians for headache consultation. Other primary headaches coexisted in 20 patients (67%). Twenty patients had migraine without aura (MO). Seven patients had headache associated with sexual activity. Five patients had cough headache. Two patients had CVD risk factors.
Conclusion The present study of PEH indicated the prevalence of 1.2% and the female/male ratio of 2.1 in middle-aged Japanese. The comorbidity rate of MO was high. PEH may not be an uncommon headache in middle-aged MO sufferers and sport beginners.

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© 2015 by The Japanese Society of Internal Medicine
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