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- Title
Systematic lymph node dissection is necessary for T1a non-small cell lung cancer.
- Authors
Liu, Tieqin; Liu, Hongxu; Li, Yu
- Abstract
Aim With the development of computed tomography, the number of surgical interventions for small-sized lung cancer has increased. It still remains controversial whether a systematic lymph node dissection is necessary in such cases. Methods From 2004 to 2010, a total of 138 patients with non-small cell lung cancer ( NSCLC) of 2 cm or less in diameter were operated on in our institution. The clinical data were retrospectively analyzed using the Kaplan- Meier method and compared using the log-rank test in surgical approaches, lymph node involvement, histology and survival rates. Results Lymph node metastasis was found in 24 of 138 (17%) patients. The 5-year survival rate for patients without lymph node metastasis was 83%, whereas it was 75 and 48% for those with pN1 and pN2 disease ( P = 0.001). Patients receiving lobectomy had a significantly better survival rate than patients receiving limited resection ( P = 0.02). The 5-year survival rates for patients with stage I, stage II and stage III were 90, 78 and 43%, respectively ( P < 0.001). Lymph node metastasis was found in 1 of 11 (9%) patients with tumors sized less than 1 cm, 7 of 39 (18%) patients with tumors sized from 1.1 to 1.5 cm, and 16 of 64 (25%) patients with a tumor larger than 1.5 cm (statistically not significant). Conclusion The survival of patients with small-sized lung cancer is closely related to the nodal involvement, stage of disease and surgical approaches. Our study supports that systematic lymph node dissection should be performed in patients with T1a NSCLC.
- Subjects
LYMPH node diseases; NON-small-cell lung carcinoma; CANCER patients; COMPUTED tomography; KAPLAN-Meier estimator; THERAPEUTICS
- Publication
Asia Pacific Journal of Clinical Oncology, 2015, Vol 11, Issue 1, p49
- ISSN
1743-7555
- Publication type
Article
- DOI
10.1111/ajco.12194