24-HOUR BLOOD-PRESSURE CONTROL - AN INTRAARTERIAL REVIEW

被引:32
作者
GOULD, BA
RAFTERY, EB
机构
[1] and Clinical Research Centre, Harrow, Middlesex
关键词
24-HOUR BLOOD PRESSURE; BETA-ADRENOCEPTOR BLOCKERS; ALPHA-ADRENOCEPTOR BLOCKERS; VASODILATORS; CALCIUM CHANNEL BLOCKERS; CIRCADIAN RHYTHM;
D O I
10.3109/07420529109059185
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Intraarterial blood pressure monitoring has shown the circadian rhythm of blood pressure control. Blood pressures tend to be highest in the morning before falling gradually during the day to a nadir at 3:00 a.m. There is a slight rise in the late afternoon that may correspond to patients' attendance at hospital for calibration of the equipment. There is a small rise in the blood pressure before awakening, and after arousal there is a rise in blood pressure to the peak level of the morning. In this article, we examine the effect of a variety of antihypertensive agents on this rhythm. In general, beta-adrenoceptor blockers appear to have less effect on nocturnal blood pressure and surge in pressure after arousal, while vasodilators, particularly alpha-adrenoceptor blockers, have a pronounced effect. These findings indicate that the rise in blood pressure before awakening and the rapid rise upon arousal appear to be due to increased alpha-adrenoceptor activity.
引用
收藏
页码:495 / 505
页数:11
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