肺动脉高压(Pulmonary hypertension,PH)是以肺血管阻力升高为特点的一类疾病。慢性栓塞性肺动脉高压(Chronic thromboemboic pulmonary hypertension,CTEPH)是PH的常见疾病类型之一。根据2003年威尼斯会议制定的PH分类标准和2008年修订的PH分类标准,CTEPH属于PH分类中的第三大类。虽然目前有关PH的研究主要是在PH分类中的第一大类即动脉型 Pulmonary hypertension (PH) is a type of disease characterized by increased pulmonary vascular resistance. Chronic thromboembo pulmonary hypertension (CTEPH) is one of the most common types of PH. According to the PH classification criteria developed at the Venice conference in 2003 and the PH classification standards revised in 2008, CTEPH is the third largest group in the PH classification. Although the current PH research is mainly in the first category of PH classification that arterial type