AUTHOR=Zhang Yonghai , Li Bin , Xu Chang , Wu Yan , Ma Ling , Yang Fan , Ma Hanxiang , Ni Xinli TITLE=Volume-controlled inverse ratio ventilation improves safe apnea time in obese patients during the induction of general anesthesia: a randomized controlled trial JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1574634 DOI=10.3389/fmed.2025.1574634 ISSN=2296-858X