The calcium channel antagonist, flunarizine, protects against ventricular fibrillation.

The calcium channel antagonist, flunarizine, protects against ventricular fibrillation.
复制标题

钙通道拮抗剂氟桂利嗪可预防心室颤动。

DOI:
10.1016/0014-2999(92)90334-z
复制
发表时间:
1992
影响因子:
5
通讯作者:
Billman,GE
Billman,GE
中科院分区:
医学2区
文献类型:
--
作者:
Billman,GE

文献摘要

参考文献

被引文献

相似文献

心肌缺血时细胞内钙的升高与致死性心律失常的发生有关。钙拮抗剂氟桂利嗪已被证明可以抑制细胞内钙的积累,并被认为可以保护由于钙超载而引发的活动。13只杂种犬心肌梗死愈合后,在运动中结扎冠脉2min,诱发室颤。这项运动加缺血试验在对照(C,载体)演示期间持续诱发室颤。预先给予氟桂利嗪2.5 mg/kg静脉注射。完全抑制所有动物的室颤(P<0.001卡方检验)。氟桂利嗪显著(P<左心室收缩压(C 143.2±12.0,F 92.3±10.5 mm Hg)、左心室收缩压最大值(C 4256±251.9,F 1784±297.2 mm Hg/S)和心率(C 118.8±7.4,F 104.7±9.0次/分钟)的降低。在此条件下,氟桂利嗪预处理仍可阻止室颤的发生。
Elevations in intracellular calcium during myocardial ischemia have been implicated in the development of lethal cardiac arrhythmias. The calcium antagonist, flunarizine, has been shown to suppress the accumulation of intracellular calcium and has been proposed to protect against triggered activity due to calcium overload. Using 13 mongrel dogs with healed myocardial infarctions, ventricular fibrillation (VF) was induced by a 2 min coronary occlusion during exercise. This exercise plus ischemia test consistently induced VF during control (C, vehicle) presentations. Pretreatment with flunarizine (2.5 mg/kg i.v.) completely suppressed VF in all the animals (P < 0.001 Chi-squared). Flunarizine elicited significant (P < 0.01 ANOVA) reductions in left ventricular (LV) systolic pressure (C 143.2 ± 12.0, F 92.3 ± 10.5 mm Hg), LVdP/dt max (C 4256 ± 251.9, F 1784 ± 297.2 mm Hg/s) and heart rate (C 118.8 ± 7.4, F 104.7 ± 9.0 beats/min) Since heart rate can contribute significantly to the development of VF, the exercise plus ischemia test was repeated with heart rate held constant with ventricular pacing (n = 3, 230.0 ± 10beats/min). Flunarizine pretreatment still prevented VF under these conditions.
DOI: 10.1159/000116061
发表时间: 1986
期刊: European Neurology
影响因子: 2.4
作者:
P. A. Zwieten
通讯作者: P. A. Zwieten
DOI: 10.1161/01.res.67.5.1115
发表时间: 1990
影响因子: 20.1
作者:
Merillat,JC;Lakatta,EG;Hano,O;Guarnieri,T
通讯作者: Guarnieri,T
DOI: 10.1097/00005344-198609000-00019
发表时间: 1986
影响因子: 3
作者:
F. Jonkman;H. Boddeke;P. V. van Zwieten
通讯作者: P. V. van Zwieten
DOI: --
发表时间: 1989
期刊: The Journal of pharmacology and experimental therapeutics
影响因子: --
作者:
Billman,GE
通讯作者: Billman,GE
钙在心律失常发生中的作用。
DOI: --
发表时间: 1989
期刊: Circulation
影响因子: 37.8
作者:
Levy,MN
通讯作者: Levy,MN