Pulmonary arteriovenous fistula symptoms?

summary

Pulmonary arteriovenous fistula is a congenital pulmonary vascular malformation. The pulmonary artery blood flows directly into the pulmonary vein without passing through the alveoli, and the pulmonary artery communicates directly with the vein to form a short circuit. So let's share the symptoms of pulmonary arteriovenous fistula?.

Pulmonary arteriovenous fistula symptoms?

First, type I multiple telangiectasia is diffuse and multiple, which is formed by anastomosis of capillaries with large short-circuit shunt.

Second: type II pulmonary aneurysm: it is formed by the anastomosis of larger vessels near the center. Due to pressure factors, it is tumor like dilation, and the short-circuit shunt is larger.

Third: type III pulmonary artery and left atrium communication: pulmonary artery is significantly enlarged, short circuit shunt is very large, right to left shunt can account for 80% of pulmonary blood flow, often accompanied by lobar and bronchial abnormalities.

matters needing attention

This disease is a group of congenital diseases, so the prevention of this disease is mainly to prevent its complications. The main complications after resection of pulmonary arteriovenous fistula can occur before, during and after operation. As long as positive measures are taken, they can be prevented or reduced. Therefore, patients should be treated with antibiotics before operation to reduce the amount of cough and sputum, train patients to cough effectively, and encourage and assist patients to cough effectively after operation, so as to minimize the complications.