Objective To discuss the application o immunohistochemistry autostainer in immunohistochemistry.Methods More than 30 kinds of first antibodies of the Pathology Department,such as AAT,CerBb-2,CK,HBcAg,ER,PR,Ki-67,and unified second antibodies were selected.Immunohistochemistry autostainer and manual operation were applied to the staining of the antibodies,and then the results by the above methods were compared.Results The antibodies stained by immunohistochemistry autostainer,gifted with clear background,no edge effect,uniform staining and accurate positive results,were all better than those by manual operation from all aspects.Conclusion Immunohistochemistry autostainer is highly automatic,time-saving,manpower-saving,repeatable and highly standardized.

Objective    To explore the treatment strategies for patients with fever and pulmonary complications after thoracic surgery during COVID-19 epidemic. Methods    The clinical data of 537 patients who ungerwent selective surgery at the Department of Thoracic Surgery, Shangjin Branch of West China Hospital between February and December 2020 were retrospectively analyzed, including 242 (45.1%) males and 295 (54.9%) females aged 53.3±13.4 years. We have established a procedure for the patients with fever and pulmonary complications after thoracic surgery to investigate the cause of the disease and track risk factors. Results    The overall postoperative complication rate was 16.4% (88/537), and 1 (0.2%) patient died. Of 537 patients, 179 (33.3%) patients were enrolled in our model according to the inclusion criteria: ratio of males [112 (62.6%) vs. 130 (36.3%), P<0.010], patients with a history of smoking [74 (41.3%) vs. 87 (24.3%), P<0.010], or with esophageal cancer surgery [36 (20.1%) vs. 15 (4.2%)], or with traditional thoracotomy [14 (7.8%)  vs. 4 (1.1%)] was higher than that of the other patients. Patients in our process due to fever or pulmonary complications had longer ICU stay and postoperative hospital stay (P=0.010). Logistic regression multivariate analysis showed that gender was an independent risk factor for postoperative fever or pulmonary complications. Conclusion    In low-risk areas of the epidemic, the treatment process is simple and feasible, and the cause traceability and corresponding treatment can basically be completed within 24 hours. At the same time, the treatment process has been running stably for a long time.