P1.16-021 Midterm Oncologic Outcomes of Single Port Thoracoscopic Lobectomy for Lung Cancer by Propensity Matched Analysis

Abstract

Current evidence is still weak to establish the oncologic equivalence of single port thoracoscopic approach compared to conventional multiport thoracoscopic surgery as one of minimally invasive approach for lung cancer surgery. The purpose of this study is to evaluate the midterm surgical outcomes of single port approach compared to conventional multiport approach in thoracoscopic lobectomy for lung cancer. A total of 228 patients in propensity matched group (both 114 patients with pathologic stage I who underwent lobectomy by conventional multiport or single port VATS) were compared the operative outcomes and we analyzed midterm survival and recurrence to evaluate the feasibility of single port VATS lobectomy for lung cancer. Both propensity matched groups showed comparable preoperative variables (age, gender, FEV1, and tumor size) (Table 1). The mean operation time, the number of resected lymph node, and conversion to open thoracotomy or multiport VATS in both group did not show differences (respectively, P=0.076, P=0.291, P=0.253). There was no difference in postoperative major morbidity (P=0.807) and 30-day mortality (p=0.247). The duration of chest drain was shorter in single port VATS group (p<0.001) (Table 2). The survival (P=0.258) and freedom from intrathoracic recurrence (p=0.797) for mean 32 (6-62) months follow up in patients with pathological stage I were not statistically different between groups (Fig). Single port thoracoscopic lobectomy in lung cancer showed acceptable oncologic outcomes for midterm follow ups with oncologic equivalence compared to conventional multiport thoracoscopic lobectomy.