Treatment of Operable Resectable Early-Stage Non-Small Cell Lung Cancer (Stage I, II, or Selected Resectable Stage IIIA)
Patients with non-small cell lung cancer (NSCLC) at clinical stage I, II, or selected resectable stage IIIA who are candidates for surgery represent a distinct population where a curative-intent approach is feasible. The management of these patients follows a structured protocol centred on surgical eligibility and extent of disease.
For operable patients at these stages, surgery provides the best chance for cure — particularly in stage I and II disease. Surgical resection is the primary treatment option for eligible patients, including those with node-negative disease, and forms the foundation of management even in selected resectable stage IIIA presentations.
Treatment Approach — Partial Overview
The standard approach involves anatomic pulmonary resection with lymph node assessment. For certain presentations — such as node-positive or larger tumours — systemic therapy administered prior to surgery may be incorporated into the plan. The full sequence of interventions, eligibility criteria, and decision points are specified in the complete protocol.
Clinical goal: Complete resection with negative margins (R0), confirmed by systematic lymph node evaluation showing no residual mediastinal tumour.
References
- In general, surgery provides the best chance for cure in patients with stage I or II disease.
- Surgical resection is considered the first option for operable patients with cancer with negative nodes.
- Anatomic pulmonary resection is preferred for the majority of patients with NSCLC.
- Lung-sparing anatomic resection (sleeve lobectomy) is preferred over pneumonectomy, if anatomically appropriate and margin-negative resection is achieved.
- Immune checkpoint inhibitor (ICI) + chemotherapy should be strongly considered if patient is eligible.
- Complete resection requires free resection margins, systematic node dissection or sampling, and the highest mediastinal node negative for tumor.
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