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
复制
发表时间:
1983
影响因子:
24
通讯作者:
Robertson,D
Robertson,D
中科院分区:
医学1区
文献类型:
--
作者:
Robertson,RM;Bernard,YD;Carr,RK;Robertson,D

文献摘要

参考文献

被引文献

相似文献

为了阐明α -肾上腺素能受体在冠状动脉痉挛引起的心绞痛中可能发挥的作用,对特异性α -拮抗剂吡唑嗪进行了双盲、随机、安慰剂对照试验。对6例血管紧张性心绞痛患者进行研究,通过连续心电图记录、胸痛和硝酸甘油用量表来衡量疗效。尽管血浆prazosin水平足以使对苯肾上腺素的反应发生6倍的变化,但服用prazosin的缺血性发作次数(9.8±6.3次/24小时)与安慰剂(10.5±6.9次)相比没有显著差异。缺血发作的时间也没有差异,安慰剂组平均为231±35秒,哌唑嗪组为231±33秒。哌唑嗪未改变胸痛和硝酸甘油的使用。这些数据表明,冠状动脉痉挛主要不是由冠状动脉α - 1受体的作用或异常引起的。
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.
保持运动能力的静息心绞痛:Prinzmetal 的变异型心绞痛
DOI: 10.1161/01.cir.47.5.946
发表时间: 1973
期刊: Circulation
影响因子: 37.8
作者:
R. Macalpin;A. Kattus;Anthony B. Alvaro
通讯作者: Anthony B. Alvaro
慢性反复发作的心绞痛。
DOI: 10.1097/00007611-197910000-00023
发表时间: 1979
影响因子: 1.1
作者:
R. Robertson;J. B. Breinig;D. Robertson
通讯作者: D. Robertson
未麻醉狗冠状动脉中的肾上腺素受体活性
DOI: --
发表时间: 1967
影响因子: 20.1
作者:
B. Pitt;Eric C. Elliot;D. E. Gregg
通讯作者: D. E. Gregg
α-肾上腺素受体介导的冠状动脉痉挛。
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
哌唑嗪:两组 α-去甲肾上腺素受体结合位点的不同亲和力
DOI: 10.1016/0014-2999(78)90258-3
发表时间: 1978
影响因子: 5
作者:
D. U'prichard;M. E. Charness;D. Robertson;S. Snyder
通讯作者: S. Snyder