Effects of varying inhaled oxygen concentrations on lung function in older adult patients undergoing laparoscopic gastrointestinal surgery under general anesthesia: protocol of a prospective multicenter clinical study in China.

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Title: Effects of varying inhaled oxygen concentrations on lung function in older adult patients undergoing laparoscopic gastrointestinal surgery under general anesthesia: protocol of a prospective multicenter clinical study in China.
Authors: Zhang T; Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China., An Y; Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China., Zhao S; Department of Anesthesiology, Dalian Third People's Hospital, Dalian, China., Han F; Department of Anesthesiology, Harbin Medical University Cancer Hospital, Harbin, China., Huang L; Department of Anesthesiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China., Wang L; Department of Anesthesiology, The First Hospital of Hebei Medical University, Shijiazhuang, China., Wu J; Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China., Lei Q; Department of Anesthesiology, Sichuan Provincial People's Hospital, Chengdu, China., Wang K; Department of Anesthesiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China., Shao J; Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China., Wang Y; Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China., Luan Y; Department of Anesthesiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China., Feng W; Department of Anesthesiology, The Affiliated Hospital of Qingdao University, Qingdao, China., Song J; Department of Anesthesiology, Chifeng Municipal Hospital, Chifeng, China., Huang Z; Department of Anesthesiology, Liaoning Cancer Hospital & Institute, Shenyang, China., Wu C; Department of Anesthesiology, Shenzhen People's Hospital, Shenzhen, China., Nan Y; Department of Anesthesiology, Yanbian University Hospital (Yanbian Hospital), Yanji, China., Tang B; Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China., Sun X; Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China., Tan W; Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China. wftan@cmu.edu.cn.
Source: Trials [Trials] 2026 Jan 23; Vol. 27 (1), pp. 139. Date of Electronic Publication: 2026 Jan 23.
Publication Type: Journal Article; Clinical Trial Protocol
Journal Info: Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1745-6215
DOI:10.1186/s13063-026-09471-3