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The Necessity of Lymphadenectomy for Non-Small Cell Lung Cancer Smaller Than 6 mm in Solid Size

  • 0Department of Thoracic Surgery, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Annals of Surgical Oncology +

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January 9, 2025

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January 9, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Lymph node sampling may be unnecessary for non-small cell lung cancer (NSCLC) smaller than 6 mm. Sublobar resection without lymphadenectomy offers faster recovery and fewer complications for these patients.

Area Of Science

  • Thoracic Surgery
  • Oncology
  • Pulmonary Medicine

Background

  • Non-small cell lung cancer (NSCLC) management often involves lymph node assessment.
  • The necessity of lymphadenectomy for small-sized NSCLC requires further investigation.

Purpose Of The Study

  • To evaluate the necessity of lymph node sampling in specific cases of non-small cell lung cancer (NSCLC).
  • To compare outcomes of surgical resection with and without lymphadenectomy for small NSCLC.

Main Methods

  • Retrospective screening of 2713 patients with small-size (≤2 cm) NSCLC who underwent surgical resection (2009-2022).
  • Analysis of nodal metastasis characteristics based on nodule size and composition (ground glass, part-solid, solid).
  • Comparison of perioperative and long-term outcomes for patients undergoing sublobar resection with or without lymphadenectomy, and lobectomy with lymphadenectomy.

Main Results

  • Nodal metastasis was observed in 2.76% of patients (75/2713), primarily in solid nodules (12.01%) and part-solid nodules (1.11%).
  • No nodal metastasis was found in patients with pure ground glass opacity or NSCLC with solid components smaller than 6 mm.
  • Sublobar resection without lymphadenectomy (SRN0) resulted in shorter operating times, less drainage, fewer complications (e.g., chylothorax), and shorter hospital stays compared to lymphadenectomy groups, with comparable 5-year recurrence-free survival.

Conclusions

  • Lymphadenectomy may not be necessary for non-small cell lung cancer (NSCLC) with solid components smaller than 6 mm.
  • Sublobar resection without lymphadenectomy demonstrates favorable postoperative outcomes and recovery without compromising long-term survival for select NSCLC patients.

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