期刊
AMERICAN JOURNAL OF MEDICINE
卷 111, 期 5, 页码 379-384出版社
EXCERPTA MEDICA INC
DOI: 10.1016/S0002-9343(01)00832-4
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资金
- NHLBI NIH HHS [HL-57450] Funding Source: Medline
BACKGROUND: Blood pressure increases transiently after a major earthquake, but the characteristics and the mechanism of this increase are unknown. METHODS: The study involved 124 elderly hypertensive outpatients from two clinics near the epicenter of the Hanshin-Awaji earthquake (7.2 on the Richter scale) for whom ambulatory blood pressure monitoring and assessment of end-organ damage had been performed before the earthquake. RESULTS: During the I to 2 weeks after the earthquake, while major aftershocks persisted, mean (+/-SD) systolic blood pressure was 14 +/- 16 mm Hg greater and mean diastolic blood pressure was 6 +/- 10 mm Hg greater, but these values returned to baseline by 3 to 5 weeks after the earthquake. The earthquake-induced increase in blood pressure correlated significantly with the white coat effect ([clinic systolic blood pressure minus 24-hour systolic blood pressure] r = 0.34, P <0.001), body mass index (r = 0.28, P <0.001), and age (r = 0.24, P <0.01). The earthquake-induced blood pressure increase was prolonged in patients with microalbuminuria for at least 2 months after the earthquake, whereas it was less pronounced in patients who had been treated with an alpha-blocker and in patients with diabetes mellitus. CONCLUSIONS: These elderly patients with hypertension had a substantial increase in blood pressure after a major earthquake; the increase was usually transient, except in patients who had microalbuminuria. The correlation with white-coat hypertension suggests that both phenomena are related to sympathetic activation. (C) 2001 by Excerpta Medica, Inc.
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