The new strategy of selective nodal dissection for lung cancer based on segment-specific patterns of nodal spread

Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan *Corresponding author: Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo 104-0045, Japan. fax: +81-3-3542-3815 . E-mail address : syuwatan{at}ncc.go.jp (S. Watanabe) A new strategy for selective nodal diss...

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Published in:Interactive cardiovascular and thoracic surgery 2005-04, Vol.4 (2), p.106-109
Main Authors: Watanabe, Shun-ichi, Asamura, Hisao, Suzuki, Kenji, Tsuchiya, Ryosuke
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container_end_page 109
container_issue 2
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container_title Interactive cardiovascular and thoracic surgery
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creator Watanabe, Shun-ichi
Asamura, Hisao
Suzuki, Kenji
Tsuchiya, Ryosuke
description Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan *Corresponding author: Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo 104-0045, Japan. fax: +81-3-3542-3815 . E-mail address : syuwatan{at}ncc.go.jp (S. Watanabe) A new strategy for selective nodal dissection in non-small cell lung cancer (NSCLC) patients according to the segment of primary tumor was explored. Data on 504 patients with NSCLC of less than 5 cm, histologically revealed to be N2 disease after thoracotomy, were analyzed. In right upper lobe (RUL) tumor, when the pretracheal node was negative, the incidence of subcarinal involvement was 3.8%. In lower lobe tumor, superior segment (RLL-Superior and LLL-Superior) tumor showed a significantly higher incidence of superior mediastinal involvement than basal segment (RLL-Basal and LLL-Basal) tumor (right, P =0.0036; left, P =0.0499). When the subcarinal node was negative, the incidence of superior mediastinal metastasis in RLL-basal and LLL-Basal tumor was 11% and 8%, respectively. In left upper lobe tumor, superior segment (LUL-Superior) tumor showed a significantly lower incidence of subcarinal involvement than lingular segment (LUL-Lingular) tumor ( P =0.0381). When aortic nodes were negative in LUL-Superior tumor, the incidence of subcarinal metastasis was 6%. Collectively, in RUL and LUL-Superior tumors, subcarinal dissection may be unnecessary if superior mediastinal node is negative. In RLL-Superior and LLL-Superior tumors, extensive dissection is required. In RLL-Basal and LLL-Basal tumors, superior mediastinal dissection may be unnecessary if subcarinal node is negative. Key Words: Selective nodal dissection; N2; Systematic nodal dissection; Non-small cell lung cancer
doi_str_mv 10.1510/icvts.2004.098814
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In left upper lobe tumor, superior segment (LUL-Superior) tumor showed a significantly lower incidence of subcarinal involvement than lingular segment (LUL-Lingular) tumor ( P =0.0381). When aortic nodes were negative in LUL-Superior tumor, the incidence of subcarinal metastasis was 6%. Collectively, in RUL and LUL-Superior tumors, subcarinal dissection may be unnecessary if superior mediastinal node is negative. In RLL-Superior and LLL-Superior tumors, extensive dissection is required. In RLL-Basal and LLL-Basal tumors, superior mediastinal dissection may be unnecessary if subcarinal node is negative. 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title The new strategy of selective nodal dissection for lung cancer based on segment-specific patterns of nodal spread
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