Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review

General anesthesia should induce unconsciousness and provide amnesia. Intraoperative awareness (IOA) is the unexpected awakening of the patient during general anesthesia, which also implies failure of anesthesia. Inadequate concentration of anesthetic drugs due to malfunction or error in the Anesthe...

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Main Authors: Qisheng Chen, Shixuan Peng, Wenjun Luo, Shuzhai Li, Zhiming Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2025.1566185/full
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author Qisheng Chen
Qisheng Chen
Shixuan Peng
Shixuan Peng
Shixuan Peng
Wenjun Luo
Shuzhai Li
Zhiming Zhang
author_facet Qisheng Chen
Qisheng Chen
Shixuan Peng
Shixuan Peng
Shixuan Peng
Wenjun Luo
Shuzhai Li
Zhiming Zhang
author_sort Qisheng Chen
collection DOAJ
description General anesthesia should induce unconsciousness and provide amnesia. Intraoperative awareness (IOA) is the unexpected awakening of the patient during general anesthesia, which also implies failure of anesthesia. Inadequate concentration of anesthetic drugs due to malfunction or error in the Anesthetic Drug Delivery Systems (ADDS) is a common cause of IOA. This review explores the risk factors for IOA associated with ADDS, focusing on issues in intravenous systems like infusion pump malfunctions, lack of carrier fluid, unrecognized venous access blockades, intraoperative dosing errors, and syringe swaps, as well as problems in inhalation systems such as anesthetic vaporizer malfunctions, insufficient carrier or fresh gas flow, and breathing circuit leaks. To tackle the unique challenges of ADDS in relation to IOA, the review discusses and emphasizes comprehensive 3E prevention strategies: (1) Enhancing training and education (such as check-listing of anesthetic delivery systems preoperatively, conducting effective communication, optimizing drug combinations, and avoiding intraoperative anesthetic medication errors); (2) Employing more monitoring intraoperatively (such as monitoring anesthetic concentration, monitoring depth of anesthesia, monitoring vital signs, and monitoring neuromuscular function); and (3) Encouraging incident reporting and audit practices. The future of ADDS may involve AI-assisted and AI-supervised management to further reduce the risk of IOA. However, more research is needed to eliminate IOA.
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spelling doaj-art-33609b316cfd4d3b91d3fbc33cfc55d62025-08-20T02:35:51ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122025-06-011610.3389/fphar.2025.15661851566185Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative reviewQisheng Chen0Qisheng Chen1Shixuan Peng2Shixuan Peng3Shixuan Peng4Wenjun Luo5Shuzhai Li6Zhiming Zhang7Department of Anesthesiology, The First People's Hospital of Chenzhou, The First Affiliated Clinical College, University of Xiangnan, Chenzhou, Hunan, ChinaDepartment of Pharmacology, Xiangtan Central Hospital (The Affiliated Hospital of Hunan University), Xiangtan, Hunan, ChinaDepartment of Anesthesiology, The First People's Hospital of Chenzhou, The First Affiliated Clinical College, University of Xiangnan, Chenzhou, Hunan, ChinaDepartment of Oncology, Graduate Collaborative Training Base of The First People’s Hospital of Xiangtan City, Hengyang Medical School, University of South China, Hengyang, Hunan, ChinaDepartment of Oncology, The First People’s Hospital of Xiangtan City, Xiangtan, Hunan, ChinaDepartment of Anesthesiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, ChinaDepartment of Anesthesiology, The First People's Hospital of Chenzhou, The First Affiliated Clinical College, University of Xiangnan, Chenzhou, Hunan, ChinaDepartment of Anesthesiology, The First People's Hospital of Chenzhou, The First Affiliated Clinical College, University of Xiangnan, Chenzhou, Hunan, ChinaGeneral anesthesia should induce unconsciousness and provide amnesia. Intraoperative awareness (IOA) is the unexpected awakening of the patient during general anesthesia, which also implies failure of anesthesia. Inadequate concentration of anesthetic drugs due to malfunction or error in the Anesthetic Drug Delivery Systems (ADDS) is a common cause of IOA. This review explores the risk factors for IOA associated with ADDS, focusing on issues in intravenous systems like infusion pump malfunctions, lack of carrier fluid, unrecognized venous access blockades, intraoperative dosing errors, and syringe swaps, as well as problems in inhalation systems such as anesthetic vaporizer malfunctions, insufficient carrier or fresh gas flow, and breathing circuit leaks. To tackle the unique challenges of ADDS in relation to IOA, the review discusses and emphasizes comprehensive 3E prevention strategies: (1) Enhancing training and education (such as check-listing of anesthetic delivery systems preoperatively, conducting effective communication, optimizing drug combinations, and avoiding intraoperative anesthetic medication errors); (2) Employing more monitoring intraoperatively (such as monitoring anesthetic concentration, monitoring depth of anesthesia, monitoring vital signs, and monitoring neuromuscular function); and (3) Encouraging incident reporting and audit practices. The future of ADDS may involve AI-assisted and AI-supervised management to further reduce the risk of IOA. However, more research is needed to eliminate IOA.https://www.frontiersin.org/articles/10.3389/fphar.2025.1566185/fullintraoperative awarenessgeneral anesthesiadrug delivery system errorsequipment safetypreventive strategies
spellingShingle Qisheng Chen
Qisheng Chen
Shixuan Peng
Shixuan Peng
Shixuan Peng
Wenjun Luo
Shuzhai Li
Zhiming Zhang
Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
Frontiers in Pharmacology
intraoperative awareness
general anesthesia
drug delivery system errors
equipment safety
preventive strategies
title Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
title_full Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
title_fullStr Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
title_full_unstemmed Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
title_short Preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems: a narrative review
title_sort preventive strategies for reducing intraoperative awareness due to errors in anesthetic drug delivery systems a narrative review
topic intraoperative awareness
general anesthesia
drug delivery system errors
equipment safety
preventive strategies
url https://www.frontiersin.org/articles/10.3389/fphar.2025.1566185/full
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