Predictive factors for lymph node metastasis and defining a subgroup treatable for laparoscopic lymph node dissection after endoscopic submucosal dissection in poorly differentiated early gastric cancer
Hua Li, Zhi-Bin Huo, Fan-Ting Kong, Qing-Qiang He, Department of Surgical Oncology, Xing Tai People Hospital, Xingtai 054001, Hebei Province, China
Yun-He Gao, Wen-Quan Liang, Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing 100853, China
Deng-Xiang Liu, Institute of Cancer Control, Xing Tai People Hospital, Xingtai 054001, Hebei Province, China
Author contributions: Li H, Huo ZB and Fan-Ting Kong contributed equally to this work. Liu DX, Li H, designed the research; Li H, Huo ZB and Fan-Ting Kong analyzed the data and drafted the manuscript; He QQ revised the manuscript critically for important intellectual content and contributed to the data analysis; Gao YH and Liang WQ helped draft the manuscript; all authors read and approved the final manuscript.
Institutional review board statement: This study is a retrospective study for the data of patients collected from the Department of Surgical Oncology, Affiliated Xing Tai People’s Hospital of Hebei Medical University during 1990-2015. No human body was involved in this study. In our hospital policy, this study does not require approval by the hospital.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: No conflict of interest was declared by the authors.
Data sharing statement: No additional data are available.
Open-Access: This is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Deng-Xiang Liu, Academic Research, Chief Doctor, Surgical Oncologist, Institute of Cancer Control, Xing Tai People Hospital, No. 16 Hongxing Street, Xingtai 054001, Hebei Province, China. email@example.com
Telephone: +86-319-3286153 Fax: +86-319-3286153
Received: July 3, 2018
Peer-review started: July 3, 2018
First decision: July 11, 2018
Revised: August 24, 2018
Accepted: August 27, 2018
Article in press: August 28, 2018
Published online: October 15, 2018