J.Jpn. Surg. Soc.. 80(12): 1484-1488, 1979

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Report on the annual meeting

EXTENDED DISSECTION OF THE REGIONAL LYMPH NODE IN THE SURGICAL TREATMENT OF LUNG CANCER

This study presents our experience of 249 lung cancers which underwent lung resection from 1955 to 1978, especially in reference to metastases of the hilar or mediastinal lymph node. Histologically, metastasis was seen in 12 cases (4.9%) in the intrapulmonary node, 35 cases (14.4%) in the hilar node, 77 cases (31.7%) in the mediastinal node and 9 cases (3.7%) in the supraclavicular node.
Five-year survival rate was as follows; negative node metastasis 46.6%, intrapulmonar ynode metastasis 20%, hilar node metastasis 15.4%, medistinal node metastasis 7.1% and supraclavicular node 0%. The patients with mediastinal node metastasis had a poor prognosis, but in patients with mediastinal node involvement who underwent the complete dissection of these nodes, survival was prolonged. In the patients with squamous cell carcinoma and negative mediastincl lymph nodes, in those with mediastinal node dissection 5-year survival rate was 42.1% but in these without dissection it was only 16%. In the patients with adenocarcinoma and negative mediastinal lymph node there were no significant difference between the cases with dissection and the cases without dissection.
We have presented the movie of extended dissection of regional lymph node performed on a 53- year old man with lung cancer.

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