Lymph Node Assessment and Impact on Survival in Video-Assisted Thoracoscopic Lobectomy or Segmentectomy Haiyu Zhou, MD, Luis F. Tapias, MD, Henning A.

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Lymph Node Assessment and Impact on Survival in Video-Assisted Thoracoscopic Lobectomy or Segmentectomy Haiyu Zhou, MD, Luis F. Tapias, MD, Henning A. Gaissert, MD, Ashok Muniappan, MD, Cameron D. Wright, MD, John C. Wain, MD, Dean M. Donahue, MD, Christopher R. Morse, MD, Douglas J. Mathisen, MD, Michael Lanuti, MD The Annals of Thoracic Surgery Volume 100, Issue 3, Pages 910-916 (September 2015) DOI: 10.1016/j.athoracsur.2015.04.034 Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 (A) Pathologic stage I, II, and III was observed in 79% (434 of 550), 14.5% (80 of 550), and 6.5% (36 of 550) patients, respectively. (B) Nodal stage (N0, N1, N2) was observed in 485, 38, and 27 patients, respectively. (C) A total of 65 (11.8%) patients had involved nodes. Nodal upstaging was observed in 3 groups: N0 to N1 (32, 5.8%); N0 to N2 (24, 4.1%); and N1 to N2 (3, 0.5%). (LNR = lymph node ratio; LNS = lymph node station; RNs = total number of resected lymph nodes.) The Annals of Thoracic Surgery 2015 100, 910-916DOI: (10.1016/j.athoracsur.2015.04.034) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Disease-free survival in resected early stage non-small cell lung cancer with (A) RNs (threshold of > 10 resected lymph nodes), (B) LNS (sampling > 3 lymph node stations), and (C) LNR (sampling lymph node ratios > 0.12). The Annals of Thoracic Surgery 2015 100, 910-916DOI: (10.1016/j.athoracsur.2015.04.034) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Overall survival analysis in resected early stage non-small cell lung cancer with (A) RNs (threshold of > 10 resected lymph nodes), (B) LNS (sampling > 3 lymph node stations), (C) LNR (sampling lymph node ratios > 0.12). The Annals of Thoracic Surgery 2015 100, 910-916DOI: (10.1016/j.athoracsur.2015.04.034) Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions