Thoracic surgery refers to operations on the organs in the chest including the heart, lungs, and esophagus. The document discusses various types of thoracic surgeries like lobectomy, pneumonectomy, wedge resection, and lung transplant that are performed to diagnose, treat, or repair conditions of the lungs. It also covers surgeries related to the heart like pericardiectomy and esophageal surgeries like esophagectomy. Important aspects of pre-operative, intra-operative and post-operative nursing management are outlined with a focus on airway maintenance, respiratory monitoring, coughing exercises, and chest tube care.