Is it life-threatening if the bullae burst?

If the pneumothorax is small and the compression degree is below 20%, the prognosis is good and there is no life risk. If the pneumothorax is large and the lung compression degree is above 50%, the patient has obvious symptoms, such as chest tightness, shortness of breath and dyspnea. At this time, closed thoracic drainage should be performed as soon as possible to make the lung expand again as soon as possible. The compressed lung can be expanded again within several hours to several days. For patients with severe lung compression for a long time, the drainage tube should be clamped after intubation, and the drainage should be performed in stages to prevent the sudden drop of pressure in the chest and pulmonary edema after lung expansion. At the same time, the chest should be closed for drainage, and the patient should rest in bed.