Five Elderly Patients with Cerebral Infarction Seen During a Heat Wave.
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- Iwamoto Toshihiko
- Department of Geriatrics, Tokyo Medical University
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- Akazawa Mami
- Department of Geriatrics, Tokyo Medical University
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- Ami Munenori
- Department of Geriatrics, Tokyo Medical University
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- Shimizu Takeshi
- Department of Geriatrics, Tokyo Medical University
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- Umahara Takahiko
- Department of Geriatrics, Tokyo Medical University
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- Takasaki Masaru
- Department of Geriatrics, Tokyo Medical University
Bibliographic Information
- Other Title
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- 猛暑中にみられた高齢者脳梗塞5例の臨床的検討
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Abstract
Five elderly patients (≥65y) with cerebral infarction induced by dehydration during a heat wave were described to clarify the relationship between dehydration and stroke in the aged. When the daily maximum temperature exceeded 30°C every day for two weeks, 6 patients with acute stroke came to our hospital. Five of them were patients with cerebral infarction aged 73-89 (the elderly group) and one was a 52-year-old woman with putaminal hemorrhage. As control groups, patients with ischemic stroke during the period 4 weeks before and after, but excluding the heat wave period, which consisted of an elderly control group (n=7) and a young control group (n=5), were also studied retrospectively with regard to clinical findings and neuroimaging. The incidence of cerebral infarction in the elderly group was higher in the heat wave period among all three groups. Atherothrombotic, lacunar, and cardioembolic infarctions were seen in 1, 2 and 2 cases, respectively. The onset in the elderly group was characteristic as all occurred before noon and were related to exercise. Physical examination at arrival revealed decreased skin turgor and dry tongue. A high BUN/creatinine ratio (≥25) and elevated fibrinogen (>400mg/dl) was frequently noted, although high hematocrit (≥45) was not seen. According to clinical findings, dehydration was diagnosed and they were infused with fluid, resulting in the improvement of skin turgor and tongue moisture. These findings indicated that dehydration due to excess perspiration due to the heat wave induced cerebral infarction in the elderly. It suggests that water intake on awakening in summer is important to prevent dehydration and ischemic stroke because elderly people are especially susceptible to those conditions in the morning.
Journal
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- Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
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Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics 36 (8), 565-571, 1999
The Japan Geriatrics Society
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Details 詳細情報について
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- CRID
- 1390001205022889216
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- NII Article ID
- 130003652524
- 10008485328
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- NII Book ID
- AN00199010
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- COI
- 1:STN:280:DC%2BD3c%2Fit1aitA%3D%3D
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- ISSN
- 03009173
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- PubMed
- 10554565
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed