Rinshō shinkeigaku = Clinical neurology
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Clinical characteristics of mobile thrombus in the cervical carotid artery were investigated. In the 1,528 patients with acute ischemic stroke, mobile thrombi were detected by carotid echography in 14 patients (0.9%; mean 77 years-old; 8 women). Mean National Institutes of Health Stroke Scale was 19 on admission, and 24 on day 10. ⋯ Followed echography showed occlusion of the internal carotid artery in 4 of 7 patients. Floating thrombus disappeared in one of 5 patients without clinical recurrence. Although surgical treatment including carotid endarterectomy was not performed in all of the present cases, clinical recurrence during admission was seen in only one patient with embolic stroke in the contralateral internal carotid artery of the mobile thrombus.
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Comparative Study
[The prevalence and character of primary headache in Japanese high school students].
We investigated prevalence and character of primary headache for 2,462 examples of high school student. An overall headache prevalence was 41.0 in boys, 55.3% in girls, and average of the headache onset was 12.7 in boys, 12.9 in girls years old. A prevalence of migraine is 5.5 in boys, 6.1% in girls according to ICHD-I and 13.7 in boys, 17.5% in girls according to modified ICHD-II diagnosis criteria. ⋯ High school students with primary headache tend take painkillers easily, but are much less likely visit physicians (only 15.0%). Our data showed that the prevalence of headache especially migraine in Japanese high school student was almost similar to past world wide findings, and suggest that its impact on the quality of life can not be ignored. Therefore, headache education must be important and necessary in a high school.