Alpha-adrenergic blockade in vasotonic angina: lack of efficacy of specific alpha 1-receptor blockade with prazosin.
Alpha-adrenergic blockade in vasotonic angina: lack of efficacy of specific alpha 1-receptor blockade with prazosin.
复制标题
血管紧张性心绞痛中的α-肾上腺素能阻断:哌唑嗪特异性α1-受体阻断缺乏疗效。
DOI:
10.1016/s0735-1097(83)80342-8
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发表时间:
1983
影响因子:
24
通讯作者:
Robertson,D
中科院分区:
文献类型:
--
作者:
Robertson,RM;Bernard,YD;Carr,RK;Robertson,D
To clarify the possible role of the alpha1-adrenergic receptor in angina due to coronary artery spasm, a double-blind, randomized, placebo-controlled trial of the specific alphai-antagonist, prazosin, was performed. Six patients with vasotonic angina were studied, with efficacy measured by continuous electrocardiographic recording and the tabulation of chest pain and nitroglycerin usage. Despite plasma prazosin levels adequate to produce a six-fold shift in the response to phenylephrine, there was no significant difference in the number of ischemic episodes while taking prazosin (9.8 ± 6.3 episodes/24 h) compared with placebo (10.5 ± 6.9). There was also no difference in the length of ischemic episodes, which averaged 231 ±35 seconds with placebo and 231 ± 33 with prazosin. Chest pain and nitroglycerin usage were not altered by prazosin. These data suggest that coronary artery spasm is not primarily caused by an effect on or an abnormality of the coronary vascular alpha1-receptor.
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影响因子:
37.8
作者:
R. Macalpin;A. Kattus;Anthony B. Alvaro
通讯作者:
Anthony B. Alvaro
影响因子:
1.1
作者:
R. Robertson;J. B. Breinig;D. Robertson
通讯作者:
D. Robertson
影响因子:
20.1
作者:
B. Pitt;Eric C. Elliot;D. E. Gregg
通讯作者:
D. E. Gregg
DOI:
10.1001/jama.236.9.1018
发表时间:
1976
期刊:
JAMA
影响因子:
--
作者:
Levene Dl;Freeman Mr
通讯作者:
Freeman Mr
影响因子:
5
作者:
D. U'prichard;M. E. Charness;D. Robertson;S. Snyder
通讯作者:
S. Snyder