期刊
JOURNAL OF CLINICAL NEUROSCIENCE
卷 13, 期 5, 页码 558-562出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jocn.2005.09.003
关键词
circadian variations; blood pressure; diurnal; acute stroke
We aimed to characterise the patterns of circadian blood pressure (BP) variation after acute stroke and determine whether any relationship exists between these patterns and stroke outcome. BP was recorded manually every 4 h for 48 h following acute stroke. Patients were classified according to the percentage fall in mean systolic BP (SBP) at night compared to during the day as: dippers (fall >= 10-<20%); extreme dippers (>= 20%); non-dippers (>= 0-<10%); and reverse dippers (<0%, that is, a rise in mean nocturnal SBP compared to mean daytime SBP). One hundred and seventy-three stroke patients were included in the study (83 men, 90 women; mean age 74.3 years). Four patients (2.3%) were extreme dippers, 25 (14.5%) dippers, 80 (46.2%) non-dippers and 64 (36.9%) reverse dippers. There was a non-significant trend in the proportion of patients who were dead or dependent at 3 months in the extreme dipper (p = 0.59) and reverse dipper (p = 0.35) groups. Non-dipping and reverse-dipping were relatively common patterns of circadian BP variation seen in acute stroke patients. These patterns were not clearly associated with outcome. (C) 2006 Elsevier Ltd. All rights reserved.
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