PMID- 27401705 OWN - NLM STAT- MEDLINE DCOM- 20170821 LR - 20170821 IS - 1873-734X (Electronic) IS - 1010-7940 (Linking) VI - 51 IP - 1 DP - 2017 Jan TI - Significance of R1-resection at the bronchial margin after surgery for non-small-cell lung cancer. PG - 176-181 LID - 10.1093/ejcts/ezw242 [doi] AB - OBJECTIVES: We aimed to evaluate the significance of microscopic residual disease at the bronchial resection margin (R1-BRM) after curative surgery for non-small cell lung cancer (NSCLC). METHODS: Retrospective review was performed on 1800 patients from 1994 to 2012. We compared recurrence and survival between 1740 patients with R0-resection at the BRM (R0-BRM) and 60 patients with R1-resection at the BRM (R1-BRM), comprising 18 cases of mucosal carcinoma in situ (R1-CIS) and 42 cases of extramucosal residual disease (R1-EMD). RESULTS: Stump recurrence occurred in 43 patients. The 5-year cumulative incidence of stump recurrence in group R0, R1-CIS and R1-EMD was 3.1, 5.6 and 12.2%, respectively. Significant differences of stump recurrence were observed between the groups (R0 versus R1-CIS, P = 0.008; R0 versus R1-EMD, P = 0.007). In Stage IB or II disease, the overall survival rate for R1-EMD was significantly lower than that for R0-BRM (P = 0.014), whereas the difference in overall survival rate between the R1-CIS group and the R0-BRM was not significant (P = 0.37). In Stage IIIA disease, the overall survival rates for R1-CIS (P = 0.87) and R1-EMD (P = 0.45) were not significantly different from that for R0-BRM. CONCLUSIONS: R1-BRM comprises a higher rate of stump recurrence, compared with that of R0-BRM. Herein, R1-EMD was associated with poor overall survival in Stage IB/II disease. In Stage IIIA disease, R1-BRM showed similar overall survival rate to that for R0-BRM, although the number of patients was too small to draw definitive conclusions thereon. CI - (c) The Author 2016. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved. FAU - Lee, Geun Dong AU - Lee GD AD - Department of Thoracic Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. FAU - Kim, Dong Kwan AU - Kim DK AD - Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea dkkim@amc.seoul.kr. FAU - Jang, Se Jin AU - Jang SJ AD - Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Choi, Se Hoon AU - Choi SH AD - Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Kim, Hyeong Ryul AU - Kim HR AD - Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Kim, Yong-Hee AU - Kim YH AD - Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. FAU - Park, Seung-Il AU - Park SI AD - Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. LA - eng PT - Journal Article DEP - 20160711 PL - Germany TA - Eur J Cardiothorac Surg JT - European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery JID - 8804069 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Bronchi/pathology/*surgery MH - Carcinoma in Situ/mortality/pathology/surgery MH - Carcinoma, Non-Small-Cell Lung/mortality/pathology/*surgery MH - Child MH - Female MH - Humans MH - Lung Neoplasms/mortality/pathology/*surgery MH - Male MH - *Margins of Excision MH - Middle Aged MH - Neoplasm Recurrence, Local/epidemiology MH - Retrospective Studies MH - Young Adult OTO - NOTNLM OT - Lung cancer OT - Recurrence OT - Surgery OT - Survival EDAT- 2016/07/13 06:00 MHDA- 2017/08/22 06:00 CRDT- 2016/07/13 06:00 PHST- 2016/01/27 00:00 [received] PHST- 2016/06/02 00:00 [revised] PHST- 2016/06/08 00:00 [accepted] PHST- 2016/07/13 06:00 [pubmed] PHST- 2017/08/22 06:00 [medline] PHST- 2016/07/13 06:00 [entrez] AID - ezw242 [pii] AID - 10.1093/ejcts/ezw242 [doi] PST - ppublish SO - Eur J Cardiothorac Surg. 2017 Jan;51(1):176-181. doi: 10.1093/ejcts/ezw242. Epub 2016 Jul 11.