ObjectiveTo explore the clinical application value of simple artery occlusion (SAO) in revealing intersegmental planes during thoracoscopic pulmonary segmentectomy. MethodsA retrospective analysis was conducted on the clinical data of patients who underwent thoracoscopic pulmonary segmentectomy at the First Affiliated Hospital of Xiamen University from February 2022 to December 2023. Patients were divided into a conventional group and an SAO group based on the method used to reveal the intersegmental plane during surgery. The two groups were compared in terms of intraoperative blood loss, operation time, postoperative drainage volume, time to intubation, postoperative pulmonary air leakage, and conversion to open thoracotomy rate. ResultsA total of 318 patients were included. There were 181 patients in the conventional group, including 86 males and 95 females, with an average age (53.35±9.20) years, and there were 137 patients in the SAO group, including 58 males and 79 females, with an average age (55.26±11.46) years. There were no statistical differences in general patient information between the two groups (P>0.05). The SAO group had less intraoperative blood loss [MD=17.568 (9.968, 25.168), P<0.001] and postoperative drainage volume [MD=275.587 (188.999, 362.175), P<0.001], shorter time to intubation [MD=1.000 (1.000, 2.000), P<0.001] and operation time [MD=20.709 (16.258, 25.159), P<0.001]. The incidence of postoperative pulmonary air leakage complications in the SAO group was lower than that in the conventional group [RR=0.361 (0.181, 0.722), P=0.003]. ConclusionSAO can reduce surgical difficulty, shorten operation time, decrease the incidence of postoperative pulmonary air leakage, and enhance the safety of anatomical pulmonary segmentectomy, making it worthy of clinical promotion and application.