256P Impact of surgical extent on recurrence-free survival in STAS-positive non-small cell lung cancer: A reconstructed IPD meta-analysis

Tumour spread through air spaces (STAS) is a recognized pathological feature associated with increased recurrence in early-stage NSCLC. Although sublobar resections are increasingly performed for stage I disease, the optimal extent of resection in patients with STAS-positive tumors remains undefined. In particular, it is unclear whether different sublobar techniques provide equivalent oncological control in this high-risk subgroup.