This umbrella review analyzed existing meta-analyses to compare sublobar resection with lobectomy for Stage I non-small cell lung cancer. The researchers looked at overall survival and disease-free survival as the main outcomes. The analysis included data from multiple studies, though the total number of patients was not reported in this summary. The review aimed to clarify the quality and applicability of current evidence rather than replace recent randomized trials.
The main results showed higher hazard ratios for sublobar resection compared to lobectomy. For Stage I disease, the hazard ratio for overall survival was 1.09. For Stage IA specifically, the hazard ratio was 1.10. The review also found a hazard ratio of 1.13 for disease-free survival in Stage I cases. These numbers suggest a slightly higher risk of events with sublobar resection in this specific analysis.
The certainty of this evidence was predominantly low or very low. The study faced substantial heterogeneity among the included data and small-study effects. There was also overlap among the primary evidence sources. Because the evidence is weak and uncertain, readers should be careful not to overstate these findings. No safety concerns or adverse events were reported in the available data. Patients and doctors should consider these mixed results alongside other clinical factors.