Pulmonary blood flow

The survival time of patients with tricuspid atresia is closely related to pulmonary blood flow. Pulmonary blood flow is close to normal, with a longest survival time of more than 8 years; those with many pulmonary blood flow can only survive for 3 months after birth. Apical valve atresia is a type of cyanotic congenital heart disease, and the incidence is about innate 1 to 5% of heart disease. Ranked third after cyanotic congenital heart disease relay tetralogy and aortic dislocation. The main pathological changes are tricuspid valve atresia or absence of the tricuspid valve, oblong foramen ovale or atrial septal defect, mitral and left ventricular hypertrophy, and right. Ventricular dysplasia