不稳定型心绞痛BRAUNWALD分级

Classification of unstable angina according to braunwald不稳定型心绞痛braunwald 分级 I. Severity分级

Class 1. New onset of severe or accelerated angina.严重的初发心绞痛或恶化型心绞痛Class II. Angina at rest,subacute(>48 h from presentation)亚急性静息型心绞痛（48小时内无发作）

Class III. Angina at rest,acute(≤48h from presentation)急性静息心绞痛（小于48小时内发作）

II. Clinical circumstances 临床环境

A Secondary unstable angina 继发不稳定型心绞痛

B Primary unstable angina原发不稳定型心绞痛

C postinfarction unstable angina(≤2 wk after infarction)心梗后心绞痛（心梗后2周） III. Intensity of treatment治疗情况、

1. Absence of therapy未治疗

2. Standard therapy标准治疗

3.Maximal therapy,including intravenous nitroglycerine包括静脉硝酸酯的最全面的治疗。 IV . Electrocardiographic changes心电图改变

1. ST-T abnormalities ST-T 显示异常

2. ST-T abnormalities absent ST-T 未显示异常