What are the clinical manifestations of tetralogy of Fallot

The clinical manifestations of tetralogy of Fallot include cyanosis of limbs, cough, dyspnea, etc. The specific analysis is as follows:

1. cyanosis of limbs

Because tetralogy of Fallot causes venous blood to enter the blood circulation without oxygen cooperation in the lungs, causing blood oxygen content to decrease, easily causing cyanosis of limbs.

2. cough

Because tetralogy of Fallot causes decreased immunity of the body, it is easy to induce pulmonary inflammatory reaction, and the secreted inflammatory secretions are easy to stimulate respiratory mucosa, causing cough.

3. dyspnea

Because tetralogy of Fallot causes right ventricular pressure to be relatively higher than left ventricle, causing right ventricular hypertrophy, inducing right heart failure, resulting in dyspnea.