title: Novel Visual Nasogastric Tube Insertion System: A Feasibility and Efficiency Study in a Manikin.
abstract: Background. Conventional nasogastric tube placement is an essential clinical procedure; however, complications may arise from blind manipulation. We tested the feasibility and efficiency of a visual nasogastric tube insertion system (VNGS) using a manikin.Methods. A microimaging fiber (0.8 mm) was integrated into the nasogastric tube to create the VNGS. Twenty inexperienced physicians were enrolled and assigned to the visual or conventional group. Each physician performed 10 repeated nasogastric tube insertions with visual guidance or the conventional method; another 20 inexperienced medical students received nasogastric tube insertion training using visual guidance or the conventional method.Results. The nasogastric tube successfully reached the stomach and the narrow anatomic structures were visualized with the VNGS. Time required for insertion was significantly shorter in the visual group compared to the conventional group (22.56 ± 3.08 versus 37.30 ± 4.12 seconds,P< 0.001). Tube misplacement was observed in 19/100 cases (19%) in the conventional group; no misplacement was observed in the visual group. Less mucosal damage was noted in the visual group (3.43 ± 1.63 versus 9.86 ± 2.31 cm2). Medical students performed better NGT insertions (shorter insertion time and less procedure-related complications) after undergoing the visual guidance training.Conclusions. The VNGS may provide a new technique for nasogastric tube insertion applicable to clinical use or simulation training.
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Qiaoya
authors.identifier: 0000-0001-5108-2139
authors.initials: Q
authors.lastname: Li
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Juan
authors.identifier: 0000-0002-5978-2583
authors.initials: J
authors.lastname: Xie
authors.affiliation: Department of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Jinxing
authors.identifier: 0000-0003-2175-9692
authors.initials: J
authors.lastname: Wu
authors.affiliation: Department of Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Rui
authors.identifier: 0000-0001-6726-0913
authors.initials: R
authors.lastname: Guo
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Wenwen
authors.identifier: 0000-0003-0397-5906
authors.initials: W
authors.lastname: Ma
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Gang
authors.identifier: 0000-0001-7004-7005
authors.initials: G
authors.lastname: Xu
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Min
authors.identifier: 0000-0001-9298-8682
authors.initials: M
authors.lastname: Yang
authors.affiliation: Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
authors.forename: Huisheng
authors.identifier: 0000-0001-8374-7967
authors.initials: H
authors.lastname: Deng