高血压急症为常见内科急症。由于血压急剧增高,可以引起急性左心衰竭、脑溢血等严重后果,甚至危及生命,故必须立即处理,尽快降压。但血压下降过低又可造成急性脑供血不足,促发脑血栓形成,加重脑梗死及肾功能恶化等严重后果。因此,医生必须熟悉在不同的高血压急症时,是否应该降压,如何降压,血压应降至什么水平,选用何种药物以及用药时应注意什么问题。本文着重介绍近几年来国内外对常见的各种高血压急症,如急进型高血压、高血压脑病、脑血管意外、急性左心衰竭、 Hypertension emergency is a common medical emergency. Due to the sharp increase in blood pressure, can cause acute left ventricular failure, stroke and other serious consequences, or even life-threatening, it must be dealt with immediately, as soon as possible. However, low blood pressure can lead to acute cerebral insufficiency, triggering cerebral thrombosis, aggravating cerebral infarction and worsening renal function and other serious consequences. Therefore, doctors must be familiar with the different emergency of hypertension, whether it should be antihypertensive, how to reduce blood pressure, blood pressure should be reduced to what level, the choice of what kind of drugs and medication should pay attention to what the problem. This article focuses on the recent years at home and abroad on a variety of common emergency services such as acute hypertension, hypertensive encephalopathy, cerebrovascular accident, acute left heart failure,