PMID- 37622593 OWN - NLM STAT- MEDLINE DCOM- 20231211 LR - 20231211 IS - 1465-3621 (Electronic) IS - 0368-2811 (Linking) VI - 53 IP - 12 DP - 2023 Dec 7 TI - A multicenter propensity score-matched analysis of lymphadenectomy in N1-positve lung cancer. PG - 1183-1190 LID - 10.1093/jjco/hyad110 [doi] AB - OBJECTIVES: Selective mediastinal lymph node dissection based on lobe-specific metastases is widely recognized in daily practice. However, the significance of mediastinal lymph node dissection for N1-positive tumors has not been elucidated. METHODS: We retrospectively reviewed 359 patients with N1-positive lung cancer who underwent lobectomy with systematic mediastinal lymph node dissection (systematic lymph node dissection) (n = 150) and lobe-specific mediastinal lymph node dissection (lobe-specific lymph node dissection) (n = 209). The operative and postoperative results and their propensity score-matched pairs were compared. The factors affecting survival were assessed using competing risk and multivariable analyses. RESULTS: The cumulative incidence of recurrence and the cumulative incidence of cancer-specific death were not significantly different between systematic and lobe-specific lymph node dissection in entire cohort. In the propensity score-matched cohort (83 pairs), systematic lymph node dissection tended to detect N2 lymph node metastasis more frequently (55.4 vs. 41%, P = 0.087). Eleven patients (13.2%) in the systematic lymph node dissection group had a metastatic N2 lymph node 'in the systematic lymph node dissection field' that lobe-specific lymph node dissection did not dissect. The oncological outcomes between patients undergoing systematic lymph node dissection (5-year cumulative incidence of recurrence, 62.1%; 5-year cumulative incidence of cancer-specific death, 27.9%) and lobe-specific lymph node dissection (5-year cumulative incidence of recurrence, 60.1%; 5-year cumulative incidence of cancer-specific death, 23.3%) were similar. The propensity score-adjusted multivariable analysis for cumulative incidence of recurrence revealed that the prognosis associated with systematic lymph node dissection was comparable with the prognosis with lobe-specific lymph node dissection (hazard ratio, 1.17; 95% confidence interval, 0.82-1.67; P = 0.37). CONCLUSIONS: The extent of lymph node dissection can affect accurate pathological staging; however, it was not associated with survival outcome in the treatment of N1-positive lung cancer. CI - (c) The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Handa, Yoshinori AU - Handa Y AUID- ORCID: 0009-0004-4890-2019 AD - Department of Surgical Oncology, Hiroshima University, Hiroshima, Japan. FAU - Tsutani, Yasuhiro AU - Tsutani Y AUID- ORCID: 0000-0001-8836-1027 AD - Department of Surgical Oncology, Hiroshima University, Hiroshima, Japan. FAU - Mimae, Takahiro AU - Mimae T AUID- ORCID: 0000-0001-9993-8928 AD - Department of Surgical Oncology, Hiroshima University, Hiroshima, Japan. FAU - Miyata, Yoshihiro AU - Miyata Y AD - Department of Surgical Oncology, Hiroshima University, Hiroshima, Japan. FAU - Ito, Hiroyuki AU - Ito H AD - Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan. FAU - Shimada, Yoshihisa AU - Shimada Y AD - Department of Surgery, Tokyo Medical University, Tokyo, Japan. FAU - Nakayama, Haruhiko AU - Nakayama H AD - Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan. FAU - Ikeda, Norihiko AU - Ikeda N AD - Department of Surgery, Tokyo Medical University, Tokyo, Japan. FAU - Okada, Morihito AU - Okada M AUID- ORCID: 0000-0002-0601-3828 AD - Department of Surgical Oncology, Hiroshima University, Hiroshima, Japan. LA - eng PT - Journal Article PT - Multicenter Study PL - England TA - Jpn J Clin Oncol JT - Japanese journal of clinical oncology JID - 0313225 SB - IM MH - Humans MH - *Lung Neoplasms/pathology MH - *Carcinoma, Non-Small-Cell Lung/pathology MH - Retrospective Studies MH - Propensity Score MH - Pneumonectomy/methods MH - Lymph Node Excision/methods MH - Lymph Nodes/surgery/pathology MH - Neoplasm Staging OTO - NOTNLM OT - lobectomy OT - lymphadenectomy OT - non-small cell lung cancer OT - prognosis OT - propensity score-matched analysis EDAT- 2023/08/25 12:42 MHDA- 2023/12/11 12:42 CRDT- 2023/08/25 07:32 PHST- 2023/05/18 00:00 [received] PHST- 2023/08/08 00:00 [accepted] PHST- 2023/12/11 12:42 [medline] PHST- 2023/08/25 12:42 [pubmed] PHST- 2023/08/25 07:32 [entrez] AID - 7250139 [pii] AID - 10.1093/jjco/hyad110 [doi] PST - ppublish SO - Jpn J Clin Oncol. 2023 Dec 7;53(12):1183-1190. doi: 10.1093/jjco/hyad110.