This document discusses a study on local advanced lung cancer patients (stage t3-4) and their 5-year survival rates following radical surgeries. It analyzes data from various patients to identify factors that significantly impact survival, including tumor characteristics, blood cell ratios, and treatment types, yielding a 62.4% cumulative 5-year survival rate. The study concludes that optimal treatment strategies require experienced thoracic surgeons and effective treatment plans tailored to individual patient conditions.