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[Mediastinal lymph node dissection in left lung cancer]

K Morishita1, K Kusajima, H Tanaka

  • 1Department of Surgery (Section II), Sapporo Medical University, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|January 1, 1994
PubMed
Summary

Incomplete lymph node dissection in left lung cancer may impact survival, particularly in Stage III A. Extended mediastinal dissection is recommended for left-side squamous cell carcinoma with tracheobronchial lymph node involvement.

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Area of Science:

  • Thoracic Surgery
  • Oncology
  • Pulmonary Medicine

Context:

  • Complete mediastinal lymph node dissection is challenging in left-sided lung cancer due to anatomical limitations (aortic arch).
  • Assessing the impact of incomplete lymph node dissection on long-term outcomes is crucial for treatment planning.

Purpose:

  • To investigate whether incomplete lymph node dissection affects late mortality in patients undergoing complete resection for non-small-cell lung cancer.
  • To compare survival rates between left-sided and right-sided lung cancer patients with similar staging.

Summary:

  • A retrospective analysis of 222 patients (141 right, 81 left lung) with resected non-small-cell lung cancer (NSCLC) was conducted.
  • While 5-year survival rates for Stage I and II left lung cancer did not differ from right lung cancer, 3-year survival for Stage III A (excluding T3) left lung cancer was significantly lower (0%) compared to right lung cancer (p < 0.01).

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Impact:

  • Findings suggest that incomplete mediastinal lymph node dissection in left-sided lung cancer, especially with N2 disease involving tracheobronchial nodes, negatively impacts survival.
  • Recommends considering extended mediastinal lymph node dissection for left-sided squamous cell carcinoma to potentially improve patient outcomes.