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
中科院分区:
文献类型:
--
作者:
Billman,GE
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.
登录
查看更多内容
影响因子:
2.4
作者:
P. A. Zwieten
通讯作者:
P. A. Zwieten
影响因子:
20.1
作者:
Merillat,JC;Lakatta,EG;Hano,O;Guarnieri,T
通讯作者:
Guarnieri,T
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
影响因子:
37.8
作者:
Levy,MN
通讯作者:
Levy,MN