肺血增加的青紫型先天性心脏病,是婴幼儿期较为常见的疾病。主要包括大血管错位、爱森曼格氏综合征、左心室发育不良综合征、肺静脉异位回流等疾病。现分述如下: (一)大血管错位大血管错位根据其解剖特点分为两大类:①完全性大血管错位:又根据主动脉与肺动脉的起源情况,分为未纠正型和纠正型两种。未纠正型者即主动脉起源于右室,而肺动脉起源于左室;纠正型者虽然主动脉与肺动脉错位,同时有其他畸形并发,或两个心室相反位置而 Pulmonary blood increased purple type of congenital heart disease, is more common in infants and young children’s disease. Mainly include dislocation of large vessels, Eisenmann syndrome, left ventricular dysplasia, pulmonary venous anomalies and other diseases. Now described as follows: (a) dislocation of large vessels Dislocation of large vessels according to their anatomical features are divided into two categories: ① complete dislocation of the big vessels: and according to the origin of the aorta and pulmonary artery, divided into uncorrected and corrected two Species. The uncorrected type, the aorta originates in the right ventricle and the pulmonary artery originates in the left ventricle. Although the corrected type is dislocated from the aorta and pulmonary arteries and has other deformities concurrently or opposite ventricles