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Optimizing Lymph Node Staging in Non-Small Cell Lung Cancer Surgery: Evidence, Guidelines, and Quality Improvement

Dimitrios E Magouliotis1, Vasiliki Androutsopoulou2, Ugo Cioffi3

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Accurate lymph node staging in non-small-cell lung cancer surgery is crucial for treatment decisions and survival. Improving nodal assessment practices ensures better patient outcomes and adherence to guidelines.

Keywords:
lung cancerlymph node stagingmediastinal lymphadenectomynon-small-cell lung cancer (NSCLC)quality improvementsurgery

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Area of Science:

  • Thoracic Surgery
  • Surgical Oncology
  • Pulmonology

Background:

  • Lymph node evaluation is critical for non-small-cell lung cancer (NSCLC) staging, treatment planning, and prognosis.
  • Real-world practices show significant variability in lymph node staging, leading to inadequate assessment.
  • Insufficient nodal assessment is linked to poorer outcomes, including higher recurrence and lower survival rates.

Purpose of the Study:

  • To review contemporary evidence and guidelines for high-quality lymph node staging in NSCLC surgery.
  • To provide a practical framework for implementing reliable nodal assessment.
  • To highlight the importance of station-based evaluation over absolute node counts.

Main Methods:

  • Narrative review integrating evidence from randomized trials, population databases, and meta-analyses.
  • Analysis of contemporary guideline recommendations from major thoracic oncology societies.
  • Discussion of evolving preoperative staging modalities and quality improvement interventions.

Main Results:

  • Contemporary guidelines emphasize systematic station-based lymph node evaluation (N1 and N2) for NSCLC.
  • Endobronchial and esophageal ultrasound are increasingly used for preoperative mediastinal staging.
  • Quality improvement initiatives demonstrate enhanced guideline adherence and patient outcomes.

Conclusions:

  • Thorough lymph node staging significantly improves accuracy and survival in NSCLC.
  • Station-based assessment and advanced imaging modalities are key to reliable staging.
  • Implementing standardized practices and quality interventions is essential for optimal lung cancer care.