When lung infection occurs after surgery for entrapment, first of all, observe the vital signs closely and use antibiotics appropriately under the doctor’s guidance. 1. Closely observe the vital signs: observe the patient’s heart sound changes, monitor the electrocardiogram, urine output, pulse rate, blood pressure, etc., and use nasal catheter to inhale oxygen, and do not input too much fluid, so as not to lead to edema of the lungs. Patients with aortic coarctation, regardless of the location of the ascending aorta, descending aorta or aortic arch, the main lesion is in the chest, and in severe cases, hemothorax can occur after the aortic coarctation is torn, and after the operation, the patient can suffer from lung infection. 2. Reasonable application of antibiotics for treatment: when lung infection occurs, antibiotics need to be applied reasonably for treatment, and broad-spectrum antibiotic infusion can be chosen for treatment to prevent the occurrence of post-surgical lung infection, and prophylactic medication can be administered before the surgery to reduce the risk of post-surgical infections, and to avoid prolonged use of the ventilator. Antibiotic treatment can be based on the results of bacterial culture, choose cephalosporin antibiotics, quinolone antibiotics, penicillin antibiotics, erythromycin antibiotics for the treatment of the combined application. For patients who develop lung infection after aortic dissection surgery, it is recommended to consult the respiratory medicine department of regular hospitals. Drugs should be used under the guidance of a doctor, avoid self-medication.