Lung volume reduction

In the late 1950s, Bratigan and Mueller first proposed lung volume reduction surgery for patients with diffuse emphysema. The theoretical basis is that under normal conditions, the elasticity of the swollen lungs can be transmitted to the relatively small bronchi, and through the peripheral Elastic traction keeps the small bronchi open, and emphysema patients lose the pericyclic traction that keeps the bronchial open. It is assumed that the radioactive traction is restored by reducing the dirty volume, keeping the small bronchi open, thereby reducing exhalation. Obstructed airflow during breathing, reducing breathing difficulties. Obvious improvement in clinical symptoms was observed in 75% of patients after surgery, and this improvement can persist for 5 years in some patients. However, this method has not been promoted due to the early mortality rate of 16% and little objective evidence. Until 1995, Cooper et al. Reported that the use of sternum mid-incision bilateral lung volume reduction surgery for COPD had achieved good results, and lung volume reduction surgery was applied in Europe and many surgical centers in the United States, and soon became a hot spot in the field of thoracic surgery.

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