Abstract:Objective To investigate the effects of thoracoscopic sublobectomy on tumor markers, erythrocyte immunity, and peripheral blood CD62P and CD63 levels in patients with non-small cell lung carcinoma (NSCLC).Methods 85 patients with NSCLC in cardiothoracic surgery from January 2015 to February 2018 were selected and divided into sublobectomy group (n = 43) and lobectomy group (n = 42) according to different treatment methods. The sublobectomy group underwent thoracoscopic sublobectomy, and the lobectomy group underwent thoracoscopic lobectomy. The perioperative indicators, complications, and serum tumor markers [carcinoembryonic antigen (CEA), carbohydrate antigen 50 (CA50), cyto-keratin 19 fragment antigen 21-1 (CYFRA21-1)], plasma erythrocyte immune function indexes [red blood cell immune complex rosette (RBC-ICR), natural tumor erythrocyte rosette (NTER), regulating factors of erythrocyte immune adhesion (FEER), associated tumor erythrocyte rosette (ATER)] and peripheral blood CD62P and CD63 levels before and after the operation were compared between the two groups. The survival rate and recurrence rate of 1 and 3 years after operation were also calculated.Results The operation time and hospital stay of the sublobectomy group were shorter than those of the lobectomy group. The intraoperative blood loss, closed drainage time > 48 h were less than those of the lobectomy group, and the VAS score at 1 day after the operation was lower than that of lobectomy group (P < 0.05). The levels of serum CEA, CA50, CYFRA21-1 and peripheral blood CD62P and CD63 levels in the two groups at 3 and 7 days after surgery were lower than those before the surgery (P < 0.05), but there was no statistically significant difference between the two groups (P > 0.05). The plasma RBC-ICR levels of the sublobectomy group were lower than those of the lobectomy group at 3 and 7 days after the operation, and the levels of NTER, FEER, and ATER were higher than those of the lobectomy group (P < 0.05). The postoperative complication rate in the sublobectomy group was 9.30%, it was lower than that in the lobectomy group with 26.19% (P < 0.05). There were no statistically significant difference in the survival rate and recurrence rate between the two groups at 1 and 3 years after surgery (P > 0.05).Conclusion The application of thoracoscopic sublobectomy for the treatment of NSCLC patients can not only reduce tumor markers and peripheral blood CD62P and CD63 levels, but also reduce surgical trauma, promote postoperative recovery, reduce the incidence of complications and the impact on the body’s erythrocyte immune function, and has no adverse effects on the prognosis, the definite curative effect and high safety.