654-2致心绞痛发作的临床特点及治疗分析

Clinical features of angina pectoris caused by 654-2 and its treatment

目的探讨654—2诱发心绞痛的』临床特点及静脉注射美托洛尔对其的治疗价值。方法对11例654．2致心绞痛发作的临床资料进行回顾分析。结果应用654-2之后3～5min出现心绞痛，心率明显加快，ST段再压低0．1～0．2mV，常规治疗（卧床休息、吸氧、舌下含服硝酸甘油等）不能缓解；静脉注射美托洛尔2～3min心绞痛缓解。结论654-2诱发的心绞痛心率增快、常规处理不易缓解，静脉注射美托洛尔迅速、有效。

Objective To analyze the clinical features of angina pectoris caused by 654-2 and the therapeutic value of Metoprolol. Methods The chnical data of 11 cases of angina pectoris caused by 654-2 were analyzed retrospectively. Results Angina pecto- ris began to occur in 3 - 5 min after using 654-2, heart rate accelerated clearly, and ST segment showed an additional depression （0.1 -0.2 mV）, which could not be relieved by conventional treatment （bed rest, oxygen inhaling, sublingual nitroglycerin, etc. ）. But the above disorders were then relieved by intravenous injection of Metoprolol in 2 - 3 rain. Conclusiqn The angina / pectoris caused by 654-2 is not easy to be relieved by conventional treatment. Metoprolol via intravenous injection is rapidly effec- tive on it.