Abstract:Abstract: Objective?To evaluate the efficacy and safety of anterior bronchus dissection of subcarinal lymph nodes in uniportal thoracoscopic radical lobectomy surgery for upper lobe lung cancer.?Methods?A retrospective study was conducted on 20 patients with upper lobe lung cancer who underwent thoracoscopic surgery from June 2016 to January 2017. 40 cases of upper lobe lung cancer treated by single-hole thoracoscopic surgery at the same time were compared. Relevant data before, during and after operation were compared between the two groups.?Results?There was no significant difference in the number of days in hospital, blood loss during operation, total drainage volume after operation, indwelling time of drainage tube after operation and number of lymph nodes in group 7 between the two groups. The pain score, tumor size and operation time of uniport thoracoscopic lobectomy group (anterior bronchial dissection of subcarinal lymph nodes) were better than those of single-hole thoracoscopic operation group (posterior bronchial dissection). There were no major postoperative complications and no perioperative deaths in both groups, and they were discharged smoothly. There were no complications such as bleeding, atelectasis, pleural encapsulated effusion, bronchopleural fistula, and no recurrence or metastasis during the follow-up period of 12 months.?Conclusion?Anterior bronchus dissection of subcarinal lymph nodes is a feasible surgical procedure, which guarantees the quality and safety of the operation.