Comparison of Surgical Outcomes between Multiport and Single Port Thoracoscopic Lobectomy for Lung Cancer: Propensity Score Matched Analysis

Abstract

Background:We evaluated operative outcomes of single port thoracoscopic lobectomy comparted to conventional multiport thoracoscopic lobectomy to determine its safety and oncologic efficacy by propensity score matched analysis.Methods:Between November 2006 and June 2015, retrospective data of 386 patients who underwent thoracoscopic lobectomy for single lobe in non-small cell lung cancer by one surgeon. The cases of sublobar resection and multiple or complex procedures were excluded in this analysis (n=145). Patients were divided into single port group (n=159) and multiport group (n=82). Seventy-six patients of each group were matched using propensity score analysis.Results:The mean operative time in learning period (<50 cases) (185± 63 min in single port vs. 184 ±59 in multiport, p=0.879) and the conversion to open thoracotomy (3 cases in single port and 2 case in multiport, p=0.649) were not different significantly between the two groups.After experiencing of 28 single port lobectomy, there was no conversion to open thoracotomy. The number of excised lymph node was not impaired by single port thoracoscopic lobectomy (17±10 in single port vs. 19±11 in multiport, p=0.512). The survival curve in pathologic stage I population was not different between groups