雷诺嗪对缺血心肌的保护作用及其研究进展  

Ranolazine's Protective Effect on Ischemic Myocardium

作　　者：王国涛[1] 杨萍[2] 

机构地区：[1]黑龙江省大庆市第四医院,黑龙江大庆163712 [2]吉林大学中日联谊医院,吉林长春130031

出　　处：《心血管病学进展》2011年第3期438-442,共5页Advances in Cardiovascular Diseases

基　　金：吉林省科技厅资助项目(200905163)

摘　　要：雷诺嗪是一个新型的心血管治疗药物,其作用机制同其抑制心肌细胞动作电位中的晚期钠离子流有关。雷诺嗪能有效抑制晚钠内流,进而缓解心肌缺血,改善心脏舒缩功能和遏止相关心律失常的发生,临床研究表明雷诺嗪可提高运动耐量,减少心绞痛发作次数,减少硝酸甘油用量。雷诺嗪尚有抗心律失常和改善心脏收缩及舒张功能的作用。Ranolazine is a new cardiovascular drug whose mechanism is related to the inhibition of late Na＋ current in cardiac myocytes.Ranolazine reduces late sodium,thus decreasing sodium entry into ischemic myocardial cells,and subsequently improves myocardial ischemia,cardiac diastolic function and tends to prevent related cardiac arrhythmias.Clinical studies have shown that ranolazine could increase exercise tolerance,decrease anginal attacks,and nitroglycerin consumption.Ranolazine also has anti-arrhythmic effects and may improve cardiac systolic and diastolic function.

关 键 词：雷诺嗪 缺血性心脏病 晚钠电流 

分 类 号：R541.4[医药卫生—心血管疾病]