Lobe-Specific Nodal Dissection for Clinical Stage I and II NSCLC: Japanese Multi-Institutional Retrospective Study Using a Propensity Score Analysis

The purpose of this study was to assess the surgical outcomes according to the extent of mediastinal lymph node dissection for patients with NSCLC by using a nationwide registry database.From among 11,663 patients in a Japanese lung cancer registry study for 2004, 5392 patients with clinical stage (c-stage) I or II NSCLC that was completely resected by lobectomy and either systematic (SND) or lobe-specific nodal dissection (LSD) were enrolled....