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急性肺栓塞主要是由于人体静脉系统、右心腔或者肺血管系统的各种内源性和外源性栓子发生脱落后进入肺动脉,从而使肺动脉及其分支发生阻塞,导致肺循环障碍[1]。急性肺栓塞的发病率较高,在临床上仅次于冠心病和高血压,同时也是病死率和误诊率较高的疾病之一。肺栓塞在临床上主要以急诊情况就医,由于其临床特征较为复杂多变,并且没有特异性症状及体征,发生误诊、漏诊的几率较高。因此,临床医师应正确认识和诊断该病,争取做到早期诊断和治疗,降低误诊率,提
Acute pulmonary embolism is mainly due to the various types of endogenous and exogenous emboli in the human venous system, right ventricle, or pulmonary vasculature that fall into the pulmonary artery, clogging the pulmonary artery and its branches and leading to pulmonary circulation disorders [1] . The incidence of acute pulmonary embolism is higher, clinically second only to coronary heart disease and hypertension, but also one of the higher mortality and misdiagnosis of the disease. Pulmonary embolism in the clinical emergency mainly to seek medical treatment, because of its clinical features are more complex and volatile, and there is no specific symptoms and signs, misdiagnosis, missed diagnosis of a higher probability. Therefore, clinicians should correctly understand and diagnose the disease, strive for early diagnosis and treatment, reduce the rate of misdiagnosis, mention