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Zarour S, Weiss Y, Abu-Ghanim M, Iacubovici L, Shaylor R, Rosenberg O, Matot I, Cohen B. Association between Intraoperative Hypotension and Postoperative Delirium: A Retrospective Cohort Analysis. Anesthesiology 2024; 141:707-718. [PMID: 38995701 DOI: 10.1097/aln.0000000000005149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
BACKGROUND Intraoperative hypotension might contribute to the development of postoperative delirium through inadequate cerebral perfusion. However, evidence regarding the association between intraoperative hypotension and postoperative delirium is equivocal. Therefore, the hypothesis that intraoperative hypotension is associated with postoperative delirium in patients older than 70 yr having elective noncardiac surgery was tested . METHODS This was a retrospective cohort analysis of patients older than 70 yr who underwent elective noncardiac surgery in a single tertiary academic center between 2020 and 2021. Intraoperative hypotension was quantified as the area under a mean arterial pressure (MAP) threshold of 65 mmHg. Postoperative delirium was defined as a collapsed composite outcome including a positive 4 A's test during the initial 2 postoperative days, and/or delirium identification using the Chart-based Delirium Identification Instrument. The association between hypotension and postoperative delirium was assessed using multivariable logistic regression, adjusting for potential confounding variables. Several sensitivity analyses were performed using similar regression models. RESULTS In total, 2,352 patients were included (median age, 76 yr; 1,112 [47%] women; 1,166 [50%] American Society of Anesthesiologists Physical Status III or greater; 698 [31%] having high-risk surgeries). The median [interquartile range] intraoperative area under the curve below a threshold of MAP less than 65 mmHg was 28 [0, 103] mmHg · min. The overall incidence of postoperative delirium was 14% (327 of 2,352). After adjustment for potential confounding variables, hypotension was not associated with postoperative delirium. Compared to the first quartile of area under the curve below a threshold of MAP less than 65 mmHg, patients in the second, third, and fourth quartiles did not have more postoperative delirium, with adjusted odds ratios of 0.94 (95% CI, 0.64 to 1.36; P = 0.73), 0.95 (95% CI, 0.66 to 1.36; P = 0.78), and 0.95 (95% CI, 0.65 to 1.36; P = 0.78), respectively. Intraoperative hypotension was also not associated with postoperative delirium in any of the sensitivity and subgroup analyses performed. CONCLUSIONS To the extent of hypotension observed in our cohort, our results suggest that intraoperative hypotension is not associated with postoperative delirium in elderly patients having elective noncardiac surgery. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Shiri Zarour
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Yotam Weiss
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Maher Abu-Ghanim
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Liat Iacubovici
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Ruth Shaylor
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Omer Rosenberg
- Adelson School of Medicine, Ariel University, Ariel, Israel
| | - Idit Matot
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Barak Cohen
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel; Outcomes Research Consortium, Cleveland, Ohio
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Meco BC, Jakobsen K, De Robertis E, Buhre W, Alkış N, Kirkegaard PR, Hägi-Pedersen D, Bubser F, Koch S, Evered LA, Saunders SJ, Caterino M, Paolini F, Berger-Estilita J, Radtke FM. A first assessment of the safe brain initiative care bundle for addressing postoperative delirium in the postanesthesia care unit. J Clin Anesth 2024; 97:111506. [PMID: 38972091 DOI: 10.1016/j.jclinane.2024.111506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 07/09/2024]
Abstract
BACKGROUND Postoperative delirium (POD) following surgery is a prevalent and distressing condition associated with adverse patient outcomes and an increased healthcare burden. OBJECTIVES To assess the effectiveness of the Safe Brain Initiative care bundle (SBI-CB) in reducing POD in the postanesthesia care unit (PACU). DESIGN A multicenter, quality-improvement initiative with retrospective analysis of collected data. SETTING The study was conducted in the operating rooms and postanesthesia care units (PACUs) of four hospitals across Denmark and Turkey. PATIENTS The convenience sample of patients were aged ≥18 years, scheduled for surgery, and could communicate verbally. Age, sex, preoperative delirium, and the American Society for Anesthesiology physical status classification were used in statistical methods to control for potential confounding influences. INTERVENTION The SBI-CB, 18 delirium-reducing recommendations aligned with international guidelines. The intervention included patient education, staff training, coordination meetings across centers, and a dashboard for the monitoring of outcomes in the PACU. MAIN OUTCOME MEASURES The primary outcome was the POD trend in the PACU during implementation months, assessed through Nu-DESC screening at up to three time points in the PACU. We also examined the length of hospital stay. RESULTS Data were collected from 18,697 adult patients across four hospitals. Initial POD incidence in the PACU after the first three months was 16.36% across all sites (n = 1021). POD in the PACU was observed across all age groups, with peak incidence in younger (18-35 years) and older (>75 years) patients. General anesthesia and longer surgical duration (>1 h) were identified as significant risk factors for POD in the PACU. Matched patients who experienced POD in the PACU had longer stays in hospital, with a mean increase from 35 to 69 h (p < 0.001). Implementation of the SBI-CB was associated with a decreased risk of POD in the PACU for each month of SBI-CB implementation (adjusted odds ratio 0.96, 95% confidence interval: [0.94, 0.97], p < 0.001). CONCLUSIONS The presented pragmatic implementation of a multidisciplinary care bundle, encompassing pre-, intra-, and postoperative measures alongside outcome monitoring, has the potential to significantly reduce the incidence of POD in the PACU. Improved patient outcomes may be achieved for general surgical departments with patient cohorts not typically considered at risk for developing POD. TRIAL REGISTRATION Clinicaltrials.gov, identifier NCT05765162.
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Affiliation(s)
- Basak Ceyda Meco
- Department of Anaesthesiology and Intensive Care, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey; Ankara University Brain Research Center (AÜBAUM), Ankara, Turkey
| | - Karina Jakobsen
- Department of Anesthesia and Intensive Care, Hospital of Nykøbing Falster, Nykøbing Falster, Denmark
| | - Edoardo De Robertis
- Division of Anesthesia, Analgesia, and Intensive Care, Department of Medicine and Surgery, University of Perugia, Italy
| | - Wolfgang Buhre
- Division of Anesthesiology, Perioperative Medicine, Emergency and Critical Care Medicine, Maastricht University Medical Center, Research School, Mental Health and Neuroscience (MhenS), Maastricht University, Maastricht, the Netherlands
| | - Neslihan Alkış
- Department of Anaesthesiology and Intensive Care, Ankara University Faculty of Medicine, Ibni Sina Hospital, Ankara, Turkey
| | - Peter Roy Kirkegaard
- Department of Anesthesia and Intensive Care, Hospital of Nykøbing Falster, Nykøbing Falster, Denmark
| | - Daniel Hägi-Pedersen
- Department of Anesthesia, Research Center of Anaesthesiology and Intensive Care Medicine, NSR Hospitals (Næstved, Slagelse, Ringsted) Næstved and Ringsted Hospital, Denmark; Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark
| | - Florian Bubser
- Department of Anesthesia and Intensive Care, Hospital of Nykøbing Falster, Nykøbing Falster, Denmark
| | - Susanne Koch
- Department of Anesthesia and Intensive Care, Hospital of Nykøbing Falster, Nykøbing Falster, Denmark; Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - Lisbeth A Evered
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY, USA; Department of Anesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, VIC, Australia; Department of Critical Care Medicine, University of Melbourne, Melbourne, VIC, Australia
| | - Sita J Saunders
- Evaluate Healthcare, Königswinter, Germany; Coreva Scientific, Königswinter, Germany
| | | | | | - Joana Berger-Estilita
- Institute of Anaesthesiology and Intensive Care, Salemspital, Hirslanden Medical Group, Schänzlistrasse 39, 3013 Bern, Switzerland; Institute for Medical Education, University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland; CINTESIS, Center for Health Technology and Services Research, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Finn M Radtke
- Department of Anesthesia and Intensive Care, Hospital of Nykøbing Falster, Nykøbing Falster, Denmark; Charité, Universitätsmedizin Berlin, Berlin, Germany.
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Yang T, Yang H, Liu Y, Liu X, Ding YJ, Li R, Mao AQ, Huang Y, Li XL, Zhang Y, Yu FX. Postoperative delirium prediction after cardiac surgery using machine learning models. Comput Biol Med 2024; 169:107818. [PMID: 38134752 DOI: 10.1016/j.compbiomed.2023.107818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 11/03/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE Postoperative delirium (POD) is a common postoperative complication in elderly patients, especially those undergoing cardiac surgery, which seriously affects the short- and long-term prognosis of patients. Early identification of risk factors for the development of POD can help improve the perioperative management of surgical patients. In the present study, five machine learning models were developed to predict patients at high risk of delirium after cardiac surgery and their performance was compared. METHODS A total of 367 patients who underwent cardiac surgery were retrospectively included in this study. Using single-factor analysis, 21 risk factors for POD were selected for inclusion in machine learning. The dataset was divided using 10-fold cross-validation for model training and testing. Five machine learning models (random forest (RF), support vector machine (SVM), radial based kernel neural network (RBFNN), K-nearest neighbour (KNN), and Kernel ridge regression (KRR)) were compared using area under the receiver operating characteristic curve (AUC-ROC), accuracy (ACC), sensitivity (SN), specificity (SPE), and Matthews coefficient (MCC). RESULTS Among 367 patients, 105 patients developed POD, the incidence of delirium was 28.6 %. Among the five ML models, RF had the best performance in ACC (87.99 %), SN (69.27 %), SPE (95.38 %), MCC (70.00 %) and AUC (0.9202), which was far superior to the other four models. CONCLUSION Delirium is common in patients after cardiac surgery. This analysis confirms the importance of the computational ML models in predicting the occurrence of delirium after cardiac surgery, especially the outstanding performance of the RF model, which has practical clinical applications for early identification of patients at risk of developing POD.
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Affiliation(s)
- Tan Yang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Hai Yang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yan Liu
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xiao Liu
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yi-Jie Ding
- Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, 324000 Quzhou, Zhejiang, China
| | - Run Li
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - An-Qiong Mao
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yue Huang
- Department of Anesthesiology, Zigong First People's Hospital, Zi Gong, 644099, Sichuan, China
| | - Xiao-Liang Li
- Department of Cardiothoracic Surgery, First Peoples Hospital of Neijiang, Nei Jiang, 641000, Sichuan, China
| | - Ying Zhang
- Department of Anesthesiology, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
| | - Feng-Xu Yu
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
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Zarour S, Weiss Y, Kiselevich Y, Iacubovici L, Karol D, Shaylor R, Davydov T, Matot I, Cohen B. The association between midazolam premedication and postoperative delirium - a retrospective cohort study. J Clin Anesth 2024; 92:111113. [PMID: 37280146 DOI: 10.1016/j.jclinane.2023.111113] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/17/2023] [Accepted: 03/17/2023] [Indexed: 06/08/2023]
Abstract
STUDY OBJECTIVE To evaluate the association between midazolam premedication and postoperative delirium in a large retrospective cohort of patients ≥70 years. DESIGN Retrospective cohort study. SETTING A single tertiary academic medical center. PATIENTS Patients ≥70 years having elective non-cardiac surgery under general anesthesia from 2020 to 2021. INTERVENTIONS Midazolam premedication, defined as intravenous midazolam administration prior to induction of general anesthesia. MEASUREMENTS The primary outcome, postoperative delirium, was a collapsed composite outcome including at least one of the following: a positive 4A's test during post-anesthesia care unit stay and/or the initial 2 postoperative days; physician or nursing records reporting new-onset confusion as captured by the CHART-DEL instrument; or a positive 3D-CAM test. The association between midazolam premedication and postoperative delirium was assessed using multivariable logistic regression, adjusting for potential confounding variables. As secondary analysis, we investigated the association between midazolam premedication and a composite of other postoperative complications. Several sensitivity analyses were performed using similar regression models. MAIN RESULTS In total, 1973 patients were analyzed (median age 75 years, 47% women, 50% ASA score ≥ 3, 32% high risk surgery). The overall incidence of postoperative delirium was 15.3% (302/1973). Midazolam premedication was administered to 782 (40%) patients (median [IQR] dose 2 [1,2] mg). After adjustment for potential confounding variables, midazolam premedication was not associated with increased odds of postoperative delirium, with adjusted odds ratio of 1.09 (95% confidence interval 0.82-1.45; P = 0.538). Midazolam premedication was also not associated with the composite of other postoperative complications. Furthermore, no association was found between midazolam premedication and postoperative delirium in any of the sensitivity analyses preformed. CONCLUSIONS Our results suggest that low doses of midazolam can be safely used to pre-medicate elective surgical patients 70 years or older before non-cardiac surgery, without significant effect on the risk of developing postoperative delirium.
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Affiliation(s)
- Shiri Zarour
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Yotam Weiss
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Yossef Kiselevich
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Liat Iacubovici
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Dana Karol
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Ruth Shaylor
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Tamara Davydov
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Idit Matot
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Barak Cohen
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel; Outcomes Research Consortium, Cleveland, OH, United States of America.
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Kato K, Kinoshita H, Kumagai G, Takekawa D, Nitobe Y, Asari T, Wada K, Kushikata T, Ishibashi Y, Hirota K. Association between preoperative neutrophil-lymphocyte ratio, uric acid, and postoperative delirium in elderly patients undergoing degenerative spine surgery. J Anesth 2024; 38:35-43. [PMID: 37898990 DOI: 10.1007/s00540-023-03273-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/04/2023] [Indexed: 10/31/2023]
Abstract
PURPOSE There are few reports regarding the association between the neutrophil-lymphocyte ratio (NLR), uric acid, and the development of postoperative delirium (POD) in patients who are undergoing spine surgeries. We investigated the associations between the NLR, uric acid as a natural antioxidant, and POD in elderly patients undergoing degenerative spine surgery. PATIENTS AND METHODS This was a single-center, observational, and retrospective study conducted in Japan. We enrolled 410 patients who underwent degenerative spine surgery. POD was diagnosed after the surgeries by psychiatrists, based on the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-V). We performed a multivariable logistic regression analysis to clarify whether the NLR and uric acid values were associated with the development of POD in the patients. RESULTS 129 of the 410 patients were excluded from the analysis. Of the 281 patients (137 females, 144 males), 32 patients (11.4%) were diagnosed with POD. The multivariable logistic regression analysis revealed that the preoperative uric acid level (adjusted odds ratio [aOR]: 0.67, 95% confidence interval [CI]: 0.49-0.90, p = 0.008) and age (aOR: 1.09, 95% CI: 1.02-1.16, p = 0.008) were significantly associated with POD. The preoperative NLR (aOR: 0.82, 95% CI: 0.60-1.13, p = 0.227) and antihyperuricemic medication (aOR: 0.97, 95% CI: 0.24-3.82, p = 0.959) were not significantly associated with POD. CONCLUSION Our results demonstrated that in elderly patients undergoing degenerative spine surgery, the preoperative NLR was not significantly associated with POD, but a lower preoperative uric acid value was an independent risk factor for developing POD. Uric acid could have a neuroprotective impact on POD in patients with degenerative spine diseases.
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Affiliation(s)
- Kodai Kato
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Hirotaka Kinoshita
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan.
| | - Gentaro Kumagai
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Daiki Takekawa
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Yohshiro Nitobe
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Toru Asari
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Kanichiro Wada
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Tetsuya Kushikata
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Kazuyoshi Hirota
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
- Department of Perioperative Medicine for Community Healthcare, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
- Department of Perioperative Stress Management, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
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Aldwikat RK, Manias E, Holmes AC, Tomlinson E, Nicholson P. Associations of postoperative delirium with activities of daily living in older people after major surgery: A prospective cohort study. J Clin Nurs 2023; 32:7578-7588. [PMID: 37341067 DOI: 10.1111/jocn.16801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 05/01/2023] [Accepted: 05/30/2023] [Indexed: 06/22/2023]
Abstract
AIMS To assess the association of postoperative delirium developed in the post-anaesthetic care unit (PACU) with older patients' ability to perform activities of daily living (ADL) during the first five postoperative days. BACKGROUND Previous studies have focused on the association between postoperative delirium and long-term function decline, however the association between postoperative delirium and the ability to perform ADL, particularly in the immediate postoperative period, needs further investigation. DESIGN A prospective cohort study. METHODS A total of 271 older patients who underwent elective or emergency surgery at a tertiary care hospital in Victoria, Australia, participated in the study. Data were collected between July 2021 and December 2021. Delirium was assessed using the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5). The Katz Index of Independence in Activities of Daily Living (KATZ ADL) scale was used to measure ADL. ADL was assessed preoperatively and daily during the first five postoperative days. The STROBE checklist was used to report this study. RESULTS Results showed that 44 (16.2%) patients developed new episode of delirium. Postoperative delirium was independently associated with decline in ADL (RR = 2.83, 95% CI = 2.71-2.97; p < 0.001). CONCLUSIONS Postoperative delirium was associated with a decline in ADL among older people during the first five postoperative days. Screening for delirium in the PACU is essential to identify delirium during the early stages of postoperative period and implement a timely comprehensive plan. RELEVANCE TO CLINICAL PRACTICE Delirium assessment of older patients in the PACU, and for at least the first five postoperative days, is strongly recommended. We also recommend engagement of patients in a focused physical and cognitive daily activity plan, particularly for older patients undergoing major surgery. PATIENT OR PUBLIC CONTRIBUTION Patients and nurses helped in data collection at a tertiary care hospital.
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Affiliation(s)
- Rami K Aldwikat
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
- Centre for Quality and Patient Safety Research, Faculty of Health, Deakin University, Geelong, Victoria, Australia
- School of Nursing and Midwifery, Monash University, Clayton, Victoria, Australia
- Operating Theatre, The Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Elizabeth Manias
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
- Centre for Quality and Patient Safety Research, Faculty of Health, Deakin University, Geelong, Victoria, Australia
- School of Nursing and Midwifery, Monash University, Clayton, Victoria, Australia
- Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia
| | - Alex C Holmes
- Department of Psychiatry, The University of Melbourne, Parkville, Victoria, Australia
- Department of Mental Health, The Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Emily Tomlinson
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
- Centre for Quality and Patient Safety Research, Faculty of Health, Deakin University, Geelong, Victoria, Australia
- Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia
| | - Patricia Nicholson
- School of Nursing and Midwifery, Deakin University, Geelong, Victoria, Australia
- Centre for Quality and Patient Safety Research, Faculty of Health, Deakin University, Geelong, Victoria, Australia
- Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia
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Kim J, Park S, Kim KN, Ha Y, Shin SJ, Cha W, Lee KY, Choi J, Koo BN. Resting-state prefrontal EEG biomarker in correlation with postoperative delirium in elderly patients. Front Aging Neurosci 2023; 15:1224264. [PMID: 37818480 PMCID: PMC10561289 DOI: 10.3389/fnagi.2023.1224264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/11/2023] [Indexed: 10/12/2023] Open
Abstract
Postoperative delirium (POD) is associated with adverse outcomes in elderly patients after surgery. Electroencephalography (EEG) can be used to develop a potential biomarker for degenerative cerebral dysfunctions, including mild cognitive impairment and dementia. This study aimed to explore the relationship between preoperative EEG and POD. We included 257 patients aged >70 years who underwent spinal surgery. We measured the median dominant frequency (MDF), which is a resting-state EEG biomarker involving intrinsic alpha oscillations that reflect an idle cortical state, from the prefrontal regions. Additionally, the mini-mental state examination and Montreal cognitive assessment (MoCA) were performed before surgery as well as 5 days after surgery. For long-term cognitive function follow up, the telephone interview for cognitive status™ (TICS) was performed 1 month and 1 year after surgery. Fifty-two (20.2%) patients were diagnosed with POD. A multivariable logistic regression analysis that included age, MoCA score, Charlson comorbidity index score, Mini Nutritional Assessment, and the MDF as variables revealed that the MDF had a significant odds ratio of 0.48 (95% confidence interval 0.27-0.85). Among the patients with POD, the postoperative neurocognitive disorders could last up to 1 year. Low MDF on preoperative EEG was associated with POD in elderly patients undergoing surgery. EEG could be a novel potential tool for identifying patients at a high risk of POD.
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Affiliation(s)
- Jeongmin Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sujung Park
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Keung-Nyun Kim
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoon Ha
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- POSTECH Biotech Center, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Sang-Jun Shin
- Department of Biomedical Systems Informatics, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Wonseok Cha
- Human Anti-Aging Standards Research Institute, Gyeongsangnam-Do, Republic of Korea
| | - Ki-young Lee
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jungmi Choi
- Human Anti-Aging Standards Research Institute, Gyeongsangnam-Do, Republic of Korea
| | - Bon-Nyeo Koo
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
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McCullagh IJ, Salas B, Teodorczuk A, Callaghan M. Modifiable risk factors for post-operative delirium in older adults undergoing major non-cardiac elective surgery: a multi-centre, trainee delivered observational cohort feasibility study and trainee survey. BMC Geriatr 2023; 23:436. [PMID: 37454100 PMCID: PMC10349417 DOI: 10.1186/s12877-023-04122-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Post-operative delirium (POD) is an acute brain failure which may occur following major surgery, with serious implications for participants and caregivers. Evidence regarding optimal anaesthetic management for older participants at higher risk of POD is conflicting. We conducted a feasibility study of our protocol in 5 centres to guide sample size estimation and inform future recruitment strategies for a larger cohort study. METHODS Participants aged over 65 and scheduled for major surgery were recruited. They were assessed pre-operatively for delirium, cognitive impairment, depression, comorbidity, activity levels and alcohol use. Details of management during surgery, all medications and complications were recorded by a trainee-led research team. Participants were assessed for delirium in the immediate recovery period and then on post-operative days 1-4 using the 4 question attention test (4AT) with complications assessed at day 4 using the post-operative morbidity survey (POMS). Primary outcomes were the incident rates of POD. Secondary outcomes were number of eligible patients, recruitment rates and retention rates throughout the study, time required for data collection, preoperative risk factors assessment and daily postoperative delirium assessments. Also to assess the added value of employing the regional trainee research network (INCARNNET) to deliver the study. Specifically, what proportion of patient consent, data collection and post-operative testing is performed by anaesthesia trainees from this group, especially the success of weekend delirium assessment by trainees? A survey was completed at the end of the study by the trainees involved regarding their involvement in the study. RESULTS Ninety-five participants were recruited, of whom 93 completed the study. Overall, POD occurred in 9 patients. Of these, three were detected in recovery and six on post-op days 1-4. Median length of stay was 6 days. Recruitment rates were high in all but one site. 59 (62%) participants were consented by trainees and 189 (63%) of post op delirium assessments were performed by trainees. A total of six patients declined the study (in a follow up survey of trainees). Pre-existing cognitive impairment, depression and problem drinking were detected in 4(4.3%), 3(3.2%) and 5(5.37%) participants, respectively. Co-morbidity was common with 55(59%) in class three or four of the geriatric index of morbidity. Overall, from a total of 641 data points, levels of missing data were as follows, site A = 9.3%, B = 13.5%, C = 15.4%, D = 10.9%, E = 11.1% (data could not be completed retrospectively). CONCLUSIONS A multi-centre observational cohort study of delirium carried out by UK trainee anaesthetists is feasible. Patients are content to undergo day of surgery consent and multiple short questionnaires pre-operatively. Proposed data, especially pharmacological, should be carefully considered for their relevance to modifiable mechanisms that can lead to POD. Future research to enable prognostic modelling of POD should involve large scale cohort studies of enriched populations to capture a higher POD incidence. POD remains a common complication in older persons undergoing major surgery in the UK and studies of interventions are urgently needed. TRIAL REGISTRATION All methods were carried out in accordance with relevant guidelines and regulations. The study was retrospectively registered with ISRCTN94663125 on 07/02/2018.
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Affiliation(s)
- Iain J McCullagh
- Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
- Newcastle University, Newcastle upon Tyne, UK.
| | - Barbara Salas
- Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Andrew Teodorczuk
- Faculty of Medicine, University of Queensland, Brisbane, Australia
- Metro North Mental Health, The Prince Charles Hospital, Brisbane, QLD, Australia
- School of Medicine and Dentistry, University of Queensland, Brisbane, Australia
| | - Mark Callaghan
- Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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9
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Weiss Y, Zac L, Refaeli E, Ben-Yishai S, Zegerman A, Cohen B, Matot I. Preoperative Cognitive Impairment and Postoperative Delirium in Elderly Surgical Patients: A Retrospective Large Cohort Study (The CIPOD Study). Ann Surg 2023; 278:59-64. [PMID: 35913053 DOI: 10.1097/sla.0000000000005657] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To test the hypothesis that in surgical patients ≥70 years, preoperative cognitive impairment is independently associated with postoperative delirium. BACKGROUND Postoperative delirium is common among elderly surgical patients and is associated with longer hospitalization and significant morbidity. Some evidence suggest that baseline cognitive impairment is an important risk factor. Routine screening for both preoperative cognitive impairment and postoperative delirium is recommended for older surgical patients. As of 2019, we implemented such routine perioperative screening in all elective surgical patients ≥70 years. METHODS Retrospective single-center analysis of prospectively collected data between January and December 2020. All elective noncardiac surgical patients ≥70 years without pre-existing dementia were included. Postoperative delirium, defined as 4A's test score ≥4, was evaluated in the postanesthesia care unit and during the initial 2 postoperative days. Patients' electronic records were also reviewed for delirium symptoms and other adverse outcomes. RESULTS Of 1518 eligible patients, 1338 (88%) were screened preoperatively [mean (SD) age 77 (6) years], of whom 21% (n=279) had cognitive impairment (Mini-Cog score ≤2). Postoperative delirium occurred in 15% (199/1338). Patients with cognitive impairment had more postoperative delirium [30% vs. 11%, adjusted odds ratio (95% confidence interval) 3.3 (2.3-4.7)]. They also had a higher incidence of a composite of postoperative complications [20% vs. 12%, adjusted odds ratio: 1.8 (1.2-2.5)], and median 1-day longer hospital stay [median (interquartile range): 6 (3,12) vs. 5 (3,9) days]. CONCLUSIONS One-fifth of elective surgical patients ≥70 years present to surgery with preoperative cognitive impairment. These patients are at increased risk of postoperative delirium and major adverse outcomes.
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Affiliation(s)
- Yotam Weiss
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Lilach Zac
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Einat Refaeli
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Shimon Ben-Yishai
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Alexander Zegerman
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Barak Cohen
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
- Outcomes Research Consortium, Cleveland Clinic, Cleveland, OH
| | - Idit Matot
- Division of Anesthesia, Intensive Care, and Pain Management, Tel-Aviv Medical Center, Tel-Aviv University, Tel-Aviv, Israel
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10
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Rudy M, Saller T. [Postoperative delirium in the recovery room]. DIE ANAESTHESIOLOGIE 2023:10.1007/s00101-023-01281-5. [PMID: 37233791 DOI: 10.1007/s00101-023-01281-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 02/25/2023] [Indexed: 05/27/2023]
Abstract
Postoperative delirium during emergence from anesthesia is the most frequent neuropsychiatric complication in the post-anesthesia care unit. In addition to increased medical and especially nursing care efforts, affected patients are threatened with delayed rehabilitation with a longer hospital stay and an increased mortality. It is therefore essential to identify risk factors at an early stage and to implement preventive measures; however, should a postoperative delirium occur in the post-anesthesia care unit despite the use of these preventive measures, it should be detected and treated at an early stage using suitable screening procedures. In this context, working instructions for delirium prophylaxis and standardized test procedures for detection of delirium have been shown to be useful. An additional drug treatment can be indicated when all nonpharmacological options have been exhausted.
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Affiliation(s)
- Margret Rudy
- Klinik für Anaesthesiologie, LMU Klinikum, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland.
| | - Thomas Saller
- Klinik für Anaesthesiologie, LMU Klinikum, Ludwig-Maximilians-Universität München, Marchioninistr. 15, 81377, München, Deutschland
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11
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Vejlgaard M, Maibom SL, Joensen UN, Kehlet H, Bundgaard-Nielsen M, Aasvang EK, Røder A. Haemodynamic and respiratory perioperative outcomes for open versus robot-assisted radical cystectomy: A double-blinded, randomised trial. Acta Anaesthesiol Scand 2023; 67:293-301. [PMID: 36560861 DOI: 10.1111/aas.14187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND The clinical impact of prolonged steep Trendelenburg position and CO2 pneumoperitoneum during robot-assisted radical cystectomy (RC) on intraoperative conditions and immediate postoperative recovery remains to be assessed. The current study investigates intraoperative and immediate postoperative outcomes for open RC (ORC) versus robot-assisted RC with intracorporal urinary diversion (iRARC) in a blinded randomised trial. We hypothesised that ORC would result in a faster haemodynamic and respiratory post-anaesthesia care unit (PACU) recovery compared to iRARC. METHODS This study is a predefined sub-analysis of a single-centre, double-blinded, randomised feasibility study. Fifty bladder cancer patients were randomly assigned to ORC (n = 25) or iRARC (n = 25). Patients, PACU staff, and ward personnel were blinded to the surgical technique. Both randomisation arms followed the same anaesthesiologic procedure, fluid treatment plan, and PACU care. The primary outcome was immediate postoperative recovery using a standardised PACU Discharge Criteria (PACU-DC) score. Secondary outcomes included respiration- and arterial O2 saturation scores as well as perioperative interventions and recordings. RESULTS All patients underwent the allocated treatment. The total PACU-DC score was highest 6 h postoperatively with no difference in the total score between randomisation arms (p = 0.80). Both the ORC and iRARC groups maintained a mean respiration- and arterial O2 saturation score below 1 (out of 3) throughout PACU stay. The iRARC patients had significantly, but clinically acceptable, higher maximum airway pressure and arterial blood pressure, as well as lower minimum pH levels. The ORC group received significantly more opioids after extubation but marginally less analgesics in the PACU, compared to the iRARC group. CONCLUSIONS A prolonged Trendelenburg position and CO2 pneumoperitoneum was well-tolerated during iRARC, and immediate postoperative recovery was similar for ORC and iRARC patients.
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Affiliation(s)
- Maja Vejlgaard
- Urological Research Unit, Department of Urology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Sophia L Maibom
- Urological Research Unit, Department of Urology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulla N Joensen
- Urological Research Unit, Department of Urology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Kehlet
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Section for Surgical Pathophysiology, The Juliane Marie Centre, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Morten Bundgaard-Nielsen
- Department of Anaesthesiology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Eske K Aasvang
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.,Department of Anaesthesiology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Andreas Røder
- Urological Research Unit, Department of Urology, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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12
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Papangelou A, Boorman DW, Sharifpour M, Patel HP, Cassim T, García PS. Associations of an eye-tracking task and pupillary metrics with age and ASA physical status score in a preoperative cohort. J Clin Monit Comput 2023; 37:795-803. [PMID: 36708440 PMCID: PMC9883606 DOI: 10.1007/s10877-023-00974-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/26/2022] [Indexed: 01/29/2023]
Abstract
Advanced age, American Society of Anesthesiologists physical status (ASA) classification and the presence of cognitive impairment are associated with an elevated risk of postoperative morbidity and mortality. The visual paired comparison (VPC) task, which relies on recognition of novel images, examines declarative memory. VPC scores have demonstrated the ability to detect mild cognitive impairment and track progression of neurodegenerative disease. Quantitative pupillometry may have similar value. We evaluate for associations between these variables of interest and the feasibility of performing these tests in the preoperative clinic. Prospective data from 199 patients seen in the preoperative clinic at a tertiary academic center were analyzed. A 5 min VPC task (Neurotrack Technologies, Inc, Redwood City, CA) was administered during their scheduled preoperative clinic visit. Pupillary light reflexes were measured at the same visit (PLR-3000™, Neuroptics Corp, Irvine, California).Thirty-four percent of patients were categorized as ASA 2 and 58% as ASA 3. Median age was 57 (IQR: 44-69). Associations were demonstrated between age and ASA physical status (Mann-Whitney U Test, p < 0.0001), maximum pupil size (Spearman Rank Correlation, r = - 0.40, p < 0.0001), and maximum constriction velocity (Spearman Rank Correlation, r = - 0.39, p < 0.0001). Our data also revealed an association between VPC score and age (Spearman Rank Correlation, p = 0.0016, r = - 0.21) but not ASA score (Kruskal-Wallis Test, p = 0.14). When compared to a nonsurgical cohort with no history of memory impairment, our population scored worse on the VPC task (Mann-Whitney U Test, p = 0.0002). A preoperative 5 min VPC task and pupillometry are feasible tests in the preoperative setting and may provide a valuable window into an individual's cognition prior to elective surgery.
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Affiliation(s)
- Alexander Papangelou
- grid.189967.80000 0001 0941 6502Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA USA
| | - David W. Boorman
- grid.189967.80000 0001 0941 6502Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA USA
| | - Milad Sharifpour
- grid.50956.3f0000 0001 2152 9905Department of Anesthesiology, Cedars Sinai Medical Center, Los Angeles, CA USA
| | - Haresh P. Patel
- grid.415146.30000 0004 0455 0755Department of Internal Medicine, Wellstar Kennestone Regional Medical Center, Marietta, GA USA
| | - Tuan Cassim
- grid.21729.3f0000000419368729Department of Anesthesiology, Columbia University, New York, NY USA
| | - Paul S. García
- grid.21729.3f0000000419368729Department of Anesthesiology, Columbia University, New York, NY USA
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13
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Zhu W, Wu J, Yang L, Xu Y, Zhou N. Construction of nursing care quality evaluation indicators for post-anaesthesia care unit in China. J Clin Nurs 2023; 32:137-146. [PMID: 35018678 DOI: 10.1111/jocn.16207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/16/2022]
Abstract
AIMS AND OBJECTIVES To establish a set of scientific and practical nursing care quality evaluation indicators for PACU in China. BACKGROUND No unified nursing care quality evaluation indicators for post-anaesthesia care unit (PACU) were found in China. DESIGN An international literature review, domestic cross-sectional survey and two-round e-Delphi study. METHODS The international literature review and domestic cross-sectional survey were conducted to identify the potential nursing care quality evaluation indicators for PACU. A total of 38 and 32 indicators were extracted from 24 articles and the cross-sectional survey respectively. Two rounds of e-Delphi study were conducted to collect opinions from a panel of 20 independent experts and establish the final version of the nursing care quality evaluation indicators for PACU. A GRRAS checklist was used to guide the reporting of this study. RESULTS Of 20 experts, 19 completed the first round of e-Delphi study and 18 completed the second round, with a response rate of 95% and 90% respectively. The experts' authority coefficient in the two rounds of e-Delphi study was 0.91 and 0.90 respectively. The Kendall W value of the two rounds ranged between 0.108 and 0.385 (p < .01). Four structure indicators, 12 process indicators and seven outcome indicators were included in the nursing care quality evaluation indicators for PACU. CONCLUSIONS With the methods of literature review, cross-sectional survey and e-Delphi study, we established a set of scientific and practical nursing care quality evaluation indicators for PACU, to improve the nursing care quality, reduce incidence of complications and ensure patient safety. RELEVANT TO CLINICAL PRACTICE The findings from this study enable nurses and managers in PACU settings to evaluate clinical nursing care quality using a robust framework.
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Affiliation(s)
- Wanping Zhu
- PACU, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jingjie Wu
- School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Lili Yang
- Nursing Department, The Fourth Affiliated Hospital of School of Medicine, Zhejiang University, Yiwu, Zhejiang Province, China
| | - Yiqing Xu
- Cardiopulmonary Sciences, School of Allied Health Professions, Loma Linda University, Loma Linda, California, USA
| | - Na Zhou
- Gynecology Department, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
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14
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Saller T, Hubig L, Seibold H, Schroeder Z, Wang B, Groene P, Perneczky R, von Dossow V, Hinske LC. Association between post-operative delirium and use of volatile anesthetics in the elderly: A real-world big data approach. J Clin Anesth 2022; 83:110957. [PMID: 36084424 DOI: 10.1016/j.jclinane.2022.110957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/17/2022] [Accepted: 08/19/2022] [Indexed: 11/19/2022]
Abstract
STUDY OBJECTIVE Early post-operative delirium is a common perioperative complication in the post anesthesia care unit. To date it is unknown if a specific anesthetic regime can affect the incidence of delirium after surgery. Our objective was to examine the effect of volatile anesthetics on post-operative delirium. DESIGN Single Center Observational Study. SETTING Post Anesthesia Care Units at a German tertiary medical center. PATIENTS 30,075 patients receiving general anesthesia for surgery. MEASUREMENTS Delirium was assessed with the Nursing Delirium Screening Scale at the end of the recovery period. Subgroup-specific effects of volatile anesthetics on post-operative delirium were estimated using generalized-linear-model trees with inverse probability of treatment weighting. We further assessed the age-specific effect of volatiles using logistic regression models. MAIN RESULTS Out of 30,075 records, 956 patients (3.2%) developed delirium in the post anesthesia care unit. On average, patients who developed delirium were older than patients without delirium. We found volatile anesthetics to increase the risk (Odds exp. (B) for delirium in the elderly 1.8-fold compared to total intravenous anesthesia. Odds increases with unplanned surgery 3.0-fold. In the very old (87 years or older), the increase in delirium is 6.2-fold. This result was confirmed with internal validation and in a logistic regression model. CONCLUSIONS Our exploratory study indicates that early postoperative delirium is associated with the use of volatile anesthetics especially in the sub-cohort of patients aged 75 years and above. Further studies should include both volatile and intravenous anesthetics to find the ideal anesthetic in elderly patients.
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Affiliation(s)
- Thomas Saller
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany; Scientific Commission on Gerontoanaesthesiology, German Association for Anaesthesiology and Intensive Care Medicine, Roritzer Str. 19, 90419 Nuremberg, Germany.
| | - Lena Hubig
- Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Heidi Seibold
- Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Zoé Schroeder
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Baocheng Wang
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Philipp Groene
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany
| | - Robert Perneczky
- Department of Psychiatry, University Hospital, LMU Munich, Nussbaumstr. 7, 80336 Munich, Germany; German Center for Neurodegenerative Disorders (DZNE), Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Feodor-Lynen-Strasse 17, 81377 Munich, Germany; Ageing Epidemiology Research Unit, School of Public Health, Imperial College London, Level 2 Faculty Building South Kensington Campus, London SW7 2AZ, UK; Sheffield Institute for Translational Neuroscience (SITraN), University of Sheffield, 385A Glossop Road, Sheffield S10 2HQ, UK
| | - Vera von Dossow
- Scientific Commission on Gerontoanaesthesiology, German Association for Anaesthesiology and Intensive Care Medicine, Roritzer Str. 19, 90419 Nuremberg, Germany; Institute for Anesthesiology, Heart and Diabetes Center NRW, Ruhr University of Bochum, Georgstr. 11, 32545 Bad Oeynhausen, Germany
| | - Ludwig C Hinske
- Department of Anaesthesiology, University Hospital, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany; Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Marchioninistr. 15, 81377 Munich, Germany; Professorship for Data Management und Clinical Decision Support, Faculty of Medicine, Augsburg University, University Hospital, Stenglinstr. 2, 86156 Augsburg, Germany
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15
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Assefa MT, Chekol WB, Melesse DY, Nigatu YA, Bizuneh YB. Incidence and risk factors of emergence delirium in elderly patients after general or spinal anesthesia for both elective and emergency surgery. Ann Med Surg (Lond) 2022; 84:104959. [DOI: 10.1016/j.amsu.2022.104959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/27/2022] [Accepted: 11/13/2022] [Indexed: 11/21/2022] Open
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16
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Frank M, Nabb AT, Gilbert SP, Bentley M. Propofol attenuates kinesin-mediated axonal vesicle transport and fusion. Mol Biol Cell 2022; 33:ar119. [PMID: 36103253 PMCID: PMC9634964 DOI: 10.1091/mbc.e22-07-0276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Propofol is a widely used general anesthetic, yet the understanding of its cellular effects is fragmentary. General anesthetics are not as innocuous as once believed and have a wide range of molecular targets that include kinesin motors. Propofol, ketamine, and etomidate reduce the distances that Kinesin-1 KIF5 and Kinesin-2 KIF3 travel along microtubules in vitro. These transport kinesins are highly expressed in the CNS, and their dysfunction leads to a range of human pathologies including neurodevelopmental and neurodegenerative diseases. While in vitro data suggest that general anesthetics may disrupt kinesin transport in neurons, this hypothesis remains untested. Here we find that propofol treatment of hippocampal neurons decreased vesicle transport mediated by Kinesin-1 KIF5 and Kinesin-3 KIF1A ∼25-60%. Propofol treatment delayed delivery of the KIF5 cargo NgCAM to the distal axon. Because KIF1A participates in axonal transport of presynaptic vesicles, we tested whether prolonged propofol treatment affects synaptic vesicle fusion mediated by VAMP2. The data show that propofol-induced transport delay causes a significant decrease in vesicle fusion in distal axons. These results are the first to link a propofol-induced delay in neuronal trafficking to a decrease in axonal vesicle fusion, which may alter physiological function during and after anesthesia.
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Affiliation(s)
- Madeline Frank
- Department of Biological Sciences and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180
| | - Alec T. Nabb
- Department of Biological Sciences and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180
| | - Susan P. Gilbert
- Department of Biological Sciences and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180
| | - Marvin Bentley
- Department of Biological Sciences and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180,*Address correspondence to: Marvin Bentley ()
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Banerji A, Sleigh JW, Voss LJ, Garcia PS, Gaskell AL. Deconstructing delirium in the post anaesthesia care unit. Front Aging Neurosci 2022; 14:930434. [PMID: 36268194 PMCID: PMC9577324 DOI: 10.3389/fnagi.2022.930434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
The course of neuro-cognitive recovery following anaesthesia and surgery is distinctive and poorly understood. Our objective was to identify patterns of neuro-cognitive recovery of the domains routinely assessed for delirium diagnosis in the post anaesthesia care unit (PACU) and to compare them to the cognitive recovery patterns observed in other studies; thereby aiding in the identification of pathological (high risk) patterns of recovery in the PACU. We also compared which of the currently available tests (3D-CAM, CAM-ICU, and NuDESC) is the best to use in PACU. This was a post hoc secondary analysis of data from the Alpha Max study which involved 200 patients aged over 60 years, scheduled for elective surgery under general anaesthesia lasting more than 2 h. These patients were assessed for delirium at 30 min following arrival in the PACU, if they were adequately arousable (Richmond Agitation Sedation Score ≥ −2). All tests for delirium diagnosis (3D-CAM, CAM-ICU, and NuDESC) and the sub-domains assessed were compared to understand temporal recovery of neurocognitive domains. These data were also analysed to determine the best predictor of PACU delirium. We found the incidence of PACU delirium was 35% (3D-CAM). Individual cognitive domains were affected differently. Few individuals had vigilance deficits (6.5%, n = 10 CAM-ICU) or disorganized thinking (19% CAM-ICU, 27.5% 3D-CAM), in contrast attention deficits were common (72%, n = 144) and most of these patients (89.5%, n = 129) were not sedated (RASS ≥ −2). CAM-ICU (27%) and NuDESC (52.8%) detected fewer cases of PACU delirium compared to 3D-CAM. In conclusion, return of neurocognitive function is a stepwise process; Vigilance and Disorganized Thinking are the earliest cognitive functions to return to baseline and lingering deficits in these domains could indicate an abnormal cognitive recovery. Attention deficits are relatively common at 30 min in the PACU even in individuals who appear to be awake. The 3D CAM is a robust test to check for delirium in the PACU.
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Affiliation(s)
- Antara Banerji
- Department of Anaesthesia, Waikato Clinical Campus, University of Auckland, Auckland, New Zealand
- *Correspondence: Antara Banerji,
| | - Jamie W. Sleigh
- Department of Anaesthesia, Waikato Clinical Campus, University of Auckland, Auckland, New Zealand
| | - Logan J. Voss
- Department of Anaesthesia, Waikato Clinical Campus, University of Auckland, Auckland, New Zealand
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
| | - Paul S. Garcia
- Department of Anesthesiology, Chief Neuroanesthesia Division, Columbia University Medical Center New York Presbyterian Hospital – Irving, Columbia University, New York, NY, United States
| | - Amy L. Gaskell
- Department of Anaesthesia, Waikato Clinical Campus, University of Auckland, Auckland, New Zealand
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
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Somnuke P, Limprapassorn P, Srinonprasert V, Wongviriyawong T, Suraarunsumrit P, Morkphrom E, Sura-amonrattana U, Phannarus H, Choorerk D, Radtke FM, Chaiwat O. The Thai version of the nursing delirium screening scale-Thai: Adaptation and validation study in postoperative patients. Front Med (Lausanne) 2022; 9:956435. [PMID: 36213680 PMCID: PMC9537571 DOI: 10.3389/fmed.2022.956435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/06/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe Nursing Delirium Screening Scale (Nu-DESC) is an effective instrument for assessing postoperative delirium (POD). This study translated the Nu-DESC into Thai (“Nu-DESC-Thai”), validated it, and compared its accuracy with the Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5).MethodsThe translation process followed the International Society for Pharmacoeconomics Outcome Research guidelines. Recruited participants were ≥ 70 years old, fluent in Thai, and scheduled for surgery. The exclusion criteria were cancellation or postponement of an operation, severe visual or auditory impairment, and patients with a Richmond Agitation Sedation Scale score of –4 or less before delirium assessment. Post-anesthesia care unit (PACU) nurses and residents on wards each used the Nu-DESC to assess delirium in 70 participants (i.e., 140 assessments) after the operation and after patient arrival at wards, respectively. Geriatricians confirmed the diagnoses using video observations and direct patient contact.ResultsThe participants’ mean age was 76.5 ± 4.6 years. The sensitivity and specificity of the Nu-DESC-Thai at a threshold of ≥ 2 were 55% (95% CI, 31.5–76.9%) and 90.8% (84.2–95.3%), respectively, with an area under a receiver operating characteristic curve (AUC) of 0.73. At a threshold of ≥ 1, the sensitivity and specificity were 85% (62.1–96.8%) and 71.7% (62.7–79.5%), respectively (AUC, 0.78). Adding 1 point for failing backward-digit counting (30–1) to the Nu-DESC-Thai and screening at a threshold of ≥ 2 increased its sensitivity to 85% (62.1–96.8%) with the same specificity of 90.8% (84.2–95.3%).ConclusionThe Nu-DESC-Thai showed good validity and reliability for postoperative use. Its sensitivity was inadequate at a cutoff ≥ 2. However, the sensitivity improved when the threshold was ≥ 1 or with the addition of backward counting to Nu-DESC-Thai and screening at a threshold of ≥ 2.
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Affiliation(s)
- Pawit Somnuke
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Peleen Limprapassorn
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Varalak Srinonprasert
- Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Faculty of Medicine, Integrated Perioperative Geriatric Excellent Research Center, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Titima Wongviriyawong
- Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Patumporn Suraarunsumrit
- Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ekkaphop Morkphrom
- Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Unchana Sura-amonrattana
- Division of Geriatric Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Harisd Phannarus
- Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Duangcheewan Choorerk
- Department of Nursing, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Finn M. Radtke
- Department of Anaesthesia and Intensive Care, Nykoebing Hospital, University of Southern Denmark (SDU), Odense, Denmark
| | - Onuma Chaiwat
- Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Faculty of Medicine, Integrated Perioperative Geriatric Excellent Research Center, Siriraj Hospital, Mahidol University, Bangkok, Thailand
- *Correspondence: Onuma Chaiwat,
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Lutz R, Müller C, Dragovic S, Schneider F, Ribbe K, Anders M, Schmid S, García PS, Schneider G, Kreuzer M, Kratzer S. The absence of dominant alpha-oscillatory EEG activity during emergence from delta-dominant anesthesia predicts neurocognitive impairment- results from a prospective observational trial. J Clin Anesth 2022; 82:110949. [PMID: 36049381 DOI: 10.1016/j.jclinane.2022.110949] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 11/24/2022]
Abstract
STUDY OBJECTIVE Postoperative neurocognitive disorders (PND) are common complications after surgery under general anesthesia. In our aging society the incidence of PND will increase. Hence, interdisciplinary efforts should be taken to minimize the occurrence of PND. Electroencephalographic (EEG) monitoring of brain activity during anesthesia or emergence from anesthesia is a promising tool to identify patients at risk. We therefore investigated whether we could identify specific EEG signatures during emergence of anesthesia that are associated with the occurrence of PND. DESIGN AND PATIENTS We performed a prospective observational investigation on 116 patients to evaluate the EEG features during emergence from general anesthesia dominated by slow delta waves in patients with and without delirium in the postoperative care unit (PACU-D) as assessed by the CAM-ICU and the RASS. MAIN RESULTS During emergence both the frontal and global EEG of patients with PACU-D were significantly different from patients without PACU-D. PACU-D patients had lower relative alpha power and reduced fronto-parietal alpha coherence. CONCLUSIONS With our analysis we show differences in EEG features associated with anesthesia emergence in patients with and without PACU-D. Frontal and global EEG alpha-band features could help to identify patients with PACU-D. CLINICAL TRIAL NUMBER NCT03287401.
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Affiliation(s)
- Rieke Lutz
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Claudia Müller
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Srdjan Dragovic
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Frederick Schneider
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Katharina Ribbe
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Malte Anders
- Early Clinical Development and Human Pain Models, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Frankfurt am Main, Germany
| | - Sebastian Schmid
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany; Department of Anaesthesiology and Intensive Care, Universitätsklinikum Ulm, Ulm, Germany
| | - Paul S García
- Department of Anaesthesiology, Columbia University, New York, NY, USA
| | - Gerhard Schneider
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
| | - Matthias Kreuzer
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany.
| | - Stephan Kratzer
- Department of Anaesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Munich, Germany
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Kang J, Cho YS, Lee M, Yun S, Jeong YJ, Won YH, Hong J, Kim S. Effects of nonpharmacological interventions on sleep improvement and delirium prevention in critically ill patients: A systematic review and meta-analysis. Aust Crit Care 2022:S1036-7314(22)00062-5. [PMID: 35718628 DOI: 10.1016/j.aucc.2022.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Sleep disturbance and delirium are common problems experienced by critically ill patients in the intensive care unit (ICU). These interrelated issues increase the length of stay in the ICU but might also negatively affect long-term health outcomes. The objective of this study was to identify the nonpharmacological interventions provided to improve sleep or prevent delirium in ICU patients or both and integrate their effect sizes. REVIEW METHODS This study was a registered systematic review and meta-analysis. We searched MEDLINE, CINAHL, EMBASE, Web of Science, and Cochrane Library from their inception until December 2021. We included randomised controlled trials and nonrandomised controlled trials-(RCT) that provided nonpharmacological interventions and reported sleep or delirium as outcome variables. Studies not published in English or whose full text was not available were excluded. The quality of the evidence was assessed with version 2 of the Cochrane risk-of-bias tool for RCTs and the Risk Of Bias In Non-randomised Studies of Interventions (ROBINS-I). RESULTS The systematic review included 118 studies, and the meta-analysis included 100 studies. Overall nonpharmacological interventions had significant effects on subjective sleep quality (standardised mean difference = 0.30, 95% confidence interval [CI] = 0.05 to 0.56), delirium incidence (odds ratio = 0.62, 95% CI = 0.53 to 0.73), and delirium duration (standardised mean difference = -0.68, 95% CI = -0.93 to -0.43). In individual interventions, aromatherapy, music, and massage effectively improved sleep. Exercise, family participation, information giving, cognitive stimulation, bright light therapy, architectural intervention, and bundles/protocols effectively reduced delirium. Light/noise blocking was the only intervention that ensured both sleep improvement and delirium prevention. CONCLUSIONS Our results suggest nonpharmacological interventions improve sleep and prevent delirium in ICU patients. We recommend that ICU nurses use nonpharmacological interventions that promote person-environment compatibility in their clinical practice. The results of our review can guide nurses in adopting interventions related to sleep and delirium. PROSPERO REFERENCE NUMBER CRD42021230815.
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Affiliation(s)
- Jiyeon Kang
- College of Nursing, Dong-A University, Busan, South Korea
| | - Young Shin Cho
- Department of Nursing, Youngsan University, Gyeongnam, South Korea.
| | - Minju Lee
- Department of Nursing, Youngsan University, Gyeongnam, South Korea.
| | - Seonyoung Yun
- Department of Nursing, Youngsan University, Gyeongnam, South Korea
| | - Yeon Jin Jeong
- Department of Nursing, Dongju College, Busan, South Korea
| | - Youn-Hui Won
- Department of Nursing, Dong-A University Medical Center, Busan, South Korea
| | - Jiwon Hong
- College of Nursing, Dong-A University, Busan, South Korea
| | - Soogyeong Kim
- Surgery Intensive Care Unit, Kosin University Gospel Hospital, Busan, South Korea
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Fondeur J, Escudero Mendez L, Srinivasan M, Hamouda RK, Ambedkar B, Arzoun H, Sahib I, Mohammed L. Dexmedetomidine in Prevention of Postoperative Delirium: A Systematic Review. Cureus 2022; 14:e25639. [PMID: 35812638 PMCID: PMC9256500 DOI: 10.7759/cureus.25639] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 06/03/2022] [Indexed: 11/16/2022] Open
Abstract
Delirium is defined by the DSM-5 as a fluctuating course of disturbance in attention, cognition, and awareness that develops over a short period without any pre-existing neurocognitive disorder. As people age, there is an increased risk of complications that may occur following a surgical procedure and one such acute complication is delirium. Studies are emerging to reduce the incidence of postoperative delirium, and one such preventive measures implemented in recent years include the administration of dexmedetomidine, a high selectivity α-2 adrenoceptor agonist. This study aims to review the efficacy of Dexmedetomidine in the prevention of postoperative delirium in randomized controlled trials in patients older than 18 years of age. The literature was explored in three online databases, namely, PubMed, Science Direct, and Scopus. Appropriate keywords and MesH terms were employed to scrutinize relevant articles that demonstrated the effects of dexmedetomidine in the prevention of postoperative delirium. The data was restricted to randomized controlled trials and clinical trials published from 2017 to 2021 in human patients older than >18 years of age undergoing non-cardiac-related procedures. The randomized clinical trials were critically assessed with the Cochrane risk of bias tool. We proceeded to screen 428 records with the assessment of the PRISMA chart and filtered out 420 papers to obtain a total of eight studies where we identified data such as sample size, types of surgeries in which the patients were involved, the delirium assessment tool, the plan of the administration of dexmedetomidine and the outcomes evaluated in each study. The Confusion Assessment Method (CAM) was the prevailing assessment tool used with the sole purpose to evaluate the incidence of postoperative delirium as the primary outcome, and assessment of inflammatory cytokines, sleep quality, and pain scales were considered as secondary outcomes. The dosage of dexmedetomidine varied among studies, and it displayed varying impacts on postoperative delirium and the secondary outcomes as well. Limitations include varying ages and ethnicities of the population. It was concluded that dexmedetomidine prevents the development of postoperative delirium in elderly patients undergoing non-cardiac surgical interventions by modulating important predisposing factors such as neuroinflammation, pain, and sleep quality. No funding was made for this study.
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Affiliation(s)
- Jack Fondeur
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | | | - Mirra Srinivasan
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ranim K Hamouda
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Baba Ambedkar
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Hadia Arzoun
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Isra Sahib
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Lubna Mohammed
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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22
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Stuff K, Kainz E, Kahl U, Pinnschmidt H, Beck S, von Breunig F, Nitzschke R, Funcke S, Zöllner C, Fischer M. Effect of sedative premedication with oral midazolam on postanesthesia care unit delirium in older adults: a secondary analysis following an uncontrolled before-after design. Perioper Med (Lond) 2022; 11:18. [PMID: 35585564 PMCID: PMC9118741 DOI: 10.1186/s13741-022-00253-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 02/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sedative premedication with benzodiazepines has been linked with prolonged recovery and inadequate emergence during the immediate postoperative period. We aimed to analyze the association between postanesthesia care unit (PACU) delirium and sedative premedication with oral midazolam. METHODS We performed a secondary analysis of prospectively collected data before (midazolam cohort) and after (non-midazolam cohort) implementation of a restrictive strategy for oral premedication with midazolam. From March 2015 until July 2018, we included patients 60 years and older, who underwent elective radical prostatectomy for prostate cancer. Exclusion criteria were contraindications to premedication with midazolam, preoperative anxiety, and a history of neurological disorders. Patients, who were scheduled for postoperative admission to the intensive care unit, were excluded. Between 2015 and 2016, patients received 7.5 mg oral midazolam preoperatively (midazolam cohort). Patients included between 2017 and 2018 did not receive any sedative medication preoperatively (non-midazolam cohort). The primary endpoint was the incidence of PACU delirium. RESULTS PACU delirium rates were 49% in the midazolam cohort (n = 214) and 33% in the non-midazolam cohort (n = 218). This difference was not statistically significant on multivariable logistic regression analysis (OR 0.847 [95% CI 0.164; 4.367]; P = 0.842). Age (OR 1.102 [95% CI 1.050; 1.156]; P < 0.001), the cumulative dose of sufentanil (OR 1.014 [95% CI 1.005; 1.024]; P = 0.005), and propofol-sufentanil for anesthesia maintenance (OR 2.805 [95% CI 1.497; 5.256]; P = 0.001) were significantly associated with PACU delirium. CONCLUSION Midazolam for sedative premedication was not significantly associated with PACU delirium. The reduction in the incidence of PACU delirium throughout the study period may be attributable to improvements in perioperative management other than a more restrictive preoperative benzodiazepine administration.
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Affiliation(s)
- Karin Stuff
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Elena Kainz
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ursula Kahl
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hans Pinnschmidt
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefanie Beck
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Franziska von Breunig
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Rainer Nitzschke
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sandra Funcke
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Zöllner
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marlene Fischer
- Department of Anaesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. .,Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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23
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Prevalence, risk factors, and outcomes of subsyndromal delirium in older adults in hospital or long-term care settings: A systematic review and meta-analysis. Geriatr Nurs 2022; 45:9-17. [DOI: 10.1016/j.gerinurse.2022.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 11/22/2022]
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Lee YL, Wong J, Ng SY. Delirium in patients following general anaesthesia. ANNALS OF THE ACADEMY OF MEDICINE, SINGAPORE 2022; 51:71-73. [PMID: 35224602 DOI: 10.47102/annals-acadmedsg.202228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Yi Lin Lee
- Department of Surgical Intensive Care, Singapore General Hospital, Singapore
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25
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Kainz E, Stuff K, Kahl U, Wiessner C, Yu Y, von Breunig F, Nitzschke R, Haese A, Graefen M, Fischer M. Impact of postanesthesia care unit delirium on self-reported cognitive function and perceived health status: a prospective observational cohort study. Qual Life Res 2022; 31:2397-2410. [PMID: 35084649 PMCID: PMC9250471 DOI: 10.1007/s11136-022-03087-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
Purpose The objective of this study was to determine the influence of postanesthesia care unit (PACU) delirium on self-reported cognitive function and perceived health status 3 months after surgery. Methods This prospective observational cohort study was performed in a PACU at a high-volume prostate cancer center. We used a convenience sample of patients > 60 years undergoing elective radical prostatectomy. Patients with a history of cerebrovascular or neurodegenerative disease were excluded. Fifteen, 30, 45, and 60 following extubation, patients were screened for signs of delirium with the Confusion Assessment Method for the Intensive Care Unit. Three months after surgery self-reported cognitive function was assessed with the Cognitive Failures Questionnaire, and health status was evaluated with the 36-item Short-Form Health Survey (SF-36). Results Signs of PACU delirium were present in 32.4% (n = 72/222) of patients, and 80.2% (n = 178/222) completed the 3-month follow-up. The presence of PACU delirium signs was not significantly associated with self-reported cognitive failures (B = 0.60, 95% CI: −1.72; 2.92, p = 0.61) or SF-36 physical component scores (B = 0.19, 95% CI: 0.02; 0.36, p = 0.03) or SF-36 mental component scores (B = −0.03, 95% CI: −0.18, 0.11, p = 0.66) 3 months after radical prostatectomy. Conclusions In a cohort of educated, highly functioning, elderly male patients who were assessed immediately after surgery and at a 3-month follow-up, we found no association between PACU delirium and self-reported cognitive failures or perceived health status, which implies that PACU delirium may be an event of limited duration and impact. Trial registration The study was registered at ClinicalTrials.gov (Identifier: NCT04168268, Date of registration: November 19, 2019). Supplementary Information The online version contains supplementary material available at 10.1007/s11136-022-03087-1.
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Affiliation(s)
- Elena Kainz
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Karin Stuff
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Ursula Kahl
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Christian Wiessner
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Yuanyuan Yu
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Franziska von Breunig
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Rainer Nitzschke
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Alexander Haese
- Martini-Klinik Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Marlene Fischer
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany. .,Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
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Méndez-Martínez C, Fernández-Martínez MN, García-Suárez M, Martínez-Isasi S, Fernández-Fernández JA, Fernández-García D. Related Factors and Treatment of Postoperative Delirium in Old Adult Patients: An Integrative Review. Healthcare (Basel) 2021; 9:healthcare9091103. [PMID: 34574877 PMCID: PMC8470646 DOI: 10.3390/healthcare9091103] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/17/2021] [Accepted: 08/23/2021] [Indexed: 11/28/2022] Open
Abstract
“Postoperative delirium” is defined as delirium occurring in the hospital up to one week after a procedure or before discharge (whichever occurs first) that meets the DSM-5 diagnostic criteria. Objectives: To describe the risk factors related to this pathology and identify effective non-pharmacological forms of treatment. An integrative review of the available literature was performed. The search results considered included all quantitative studies published between 2011 and 2019 in both English and Spanish. A total of 117 studies were selected. Advanced age was identified as the principal risk factor for postoperative delirium. Nursing interventions appear to be the key to preventing or reducing the seriousness of delirium after an anaesthetic episode. The aetiology of postoperative delirium remains unknown, and no treatment exists to eliminate this pathology. The role of nursing staff is fundamental in the prevention, diagnosis, and management of the pathology.
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Affiliation(s)
- Carlos Méndez-Martínez
- Department of Nursing and Physiotherapy, University of León, 24071 León, Spain; (M.G.-S.); (J.A.F.-F.); (D.F.-G.)
- University Hospital of León, 24071 León, Spain
- Correspondence:
| | - María Nélida Fernández-Martínez
- Department of Biomedical Sciences, Institute of Biomedicine (IBIOMED), Veterinary Faculty, University of Leon, 24071 Leon, Spain;
| | - Mario García-Suárez
- Department of Nursing and Physiotherapy, University of León, 24071 León, Spain; (M.G.-S.); (J.A.F.-F.); (D.F.-G.)
- University Hospital of León, 24071 León, Spain
| | - Santiago Martínez-Isasi
- CLINURSID Research Group, Psychiatry, Radiology, Public Health, Nursing and Medicine Department, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain;
- Simulation and Intensive Care Unit of Santiago (SICRUS) Research Group, Health Research Institute of Santiago, University Hospital of Santiago de Compostela CHUS, 15706 Santiago de Compostela, Spain
| | - Jesús Antonio Fernández-Fernández
- Department of Nursing and Physiotherapy, University of León, 24071 León, Spain; (M.G.-S.); (J.A.F.-F.); (D.F.-G.)
- University Hospital of León, 24071 León, Spain
| | - Daniel Fernández-García
- Department of Nursing and Physiotherapy, University of León, 24071 León, Spain; (M.G.-S.); (J.A.F.-F.); (D.F.-G.)
- University Hospital of León, 24071 León, Spain
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Tiwary N, Treggiari MM, Yanez ND, Kirsch JR, Tekkali P, Taylor CC, Schenning KJ. Agreement Between the Mini-Cog in the Preoperative Clinic and on the Day of Surgery and Association With Postanesthesia Care Unit Delirium: A Cohort Study of Cognitive Screening in Older Adults. Anesth Analg 2021; 132:1112-1119. [PMID: 33002933 DOI: 10.1213/ane.0000000000005197] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Cognitive impairment is common in older surgical patients and is associated with postoperative delirium. However, cognitive function is inconsistently assessed preoperatively, leading to missed opportunities to recognize vulnerable patients. We designed a prospective cohort study to assess the agreement of the Mini-Cog screening tool administered in the preoperative clinic (clinic-day test) or immediately before surgery (surgery-day test) and to determine whether a positive screening for cognitive dysfunction in the surgery-day test is associated with postoperative delirium in the postanesthesia care unit (PACU). METHODS This was a cohort study of patients aged 65-89 years, scheduled for elective, inpatient surgery under general anesthesia between June 20, 2018 and August 3, 2018. Mini-Cog test scores were obtained during a clinic-day test and surgery-day test. The Short Confusion Assessment Method was performed in the PACU. Agreement between Mini-Cog clinic-day and surgery-day test scores was estimated using an ordinally weighted kappa statistic, κ. Multivariable logistic regression was used to determine whether there was an association between a positive screen for cognitive impairment and PACU delirium. Odds ratio analysis was performed to determine whether the Mini-Cog score was associated with PACU delirium. RESULTS Of 128 patients meeting eligibility criteria, 80 patients were enrolled. Ten had cognitive impairment based on the Mini-Cog clinic-day test score, while 70 did not. Age, sex, race, education level, subjective memory impairment, and American Society of Anesthesiologists (ASA) physical status were equivalent in the 2 groups. The mean number of days between the clinic-day score and the surgery-day score was 8.4 days (standard deviation [SD] = 6.9). Mini-Cog clinic-day and surgery-day scores had high agreement (κ = 0.78; 95% confidence interval [CI], 0.69-0.87; P < .001), and both scores were highly predictive of PACU delirium. Patients with Mini-Cog surgery-day scores compatible with cognitive impairment (Mini-Cog scores ≤2) had an estimated 12.8 times higher odds of PACU delirium compared to patients with normal cognitive function or Mini-Cog scores >2 (odds ratio [OR] = 12.8; 95% CI, 2.6-63.8, P = .002). Similarly, patients with Mini-Cog clinic-day test scores compatible with cognitive impairment had an estimated 29 times higher odds of PACU delirium compared to patients with normal cognitive function (OR = 29.0; 95% CI, 2.6-63.8, P < .001). CONCLUSIONS These data support the approach of using the Mini-Cog on the day of surgery to screen for cognitive impairment in older patients. Importantly, Mini-Cog surgery-day test scores compatible with cognitive impairment (≤2) were strongly associated with PACU delirium.
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Affiliation(s)
- Nayan Tiwary
- From the New York Medical College School of Medicine, Valhalla, New York
| | - Miriam M Treggiari
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon.,Department of Anesthesiology, Yale University, New Haven, Connecticut
| | - N David Yanez
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon.,Department of Anesthesiology, Yale University, New Haven, Connecticut
| | - Jeffrey R Kirsch
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon.,Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Praveen Tekkali
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon
| | - Cornelia C Taylor
- Department of Internal Medicine, Portland Providence Medical Center, Portland, Oregon
| | - Katie J Schenning
- Department of Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon
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Tolly B, Waly A, Peterson G, Erbes CR, Prielipp RC, Apostolidou I. Adult Emergence Agitation: A Veteran-Focused Narrative Review. Anesth Analg 2021; 132:353-364. [PMID: 33177329 DOI: 10.1213/ane.0000000000005211] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Emergence agitation (EA) is a self-limited state of psychomotor excitement during awakening from general anesthesia. EA is confined to the emergence period as consciousness is restored, which sharply distinguishes it from other postoperative delirium states. Sporadic episodes of EA may become violent with the potential for harm to both patients and caregivers, but the long-term consequences of such events are not fully understood. Current literature on EA in adults is limited to small-scale studies with inconsistent nomenclature, variable time periods that define emergence, a host of different surgical populations, and conflicting diagnostic criteria. Therefore, true incidence rates and risk factors are unknown. In adult noncardiac surgery, the incidence of EA is approximately 19%. Limited data suggest that young adults undergoing otolaryngology operations with volatile anesthetic maintenance may be at the highest risk for EA. Currently suggested EA mechanisms are theoretical but might reflect underblunted sympathetic activation in response to various internal (eg, flashbacks or anxiety) or external (eg, surgical pain) stimuli as consciousness returns. Supplemental dexmedetomidine and ketamine may be utilized for EA prevention. Compared to the civilian population, military veterans may be more vulnerable to EA due to high rates of posttraumatic stress disorder (PTSD) manifesting as violent flashbacks; however, confirmatory data are limited. Nonetheless, expert military medical providers suggest that use of patient-centered rapport tactics, PTSD trigger identification and avoidance, and grounding measures may alleviate hyperactive emergence phenomena. Future research is needed to better characterize EA in veterans and validate prophylactic measures to optimize care for these patients. This narrative review provides readers with an important framework to distinguish EA from delirium. Furthermore, we summarize current knowledge of EA risk factors, mechanisms, and adult management strategies and specifically revisit them in the context of veteran perioperative health. The anesthesiology care team is ideally positioned to further explore EA and develop effective prevention and treatment protocols.
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Affiliation(s)
- Brian Tolly
- From the Department of Anesthesiology, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota.,Department of Anesthesiology, University of Minnesota School of Medicine, Minneapolis, Minnesota
| | - Amr Waly
- From the Department of Anesthesiology, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota
| | - Garrett Peterson
- From the Department of Anesthesiology, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota
| | - Christopher R Erbes
- From the Department of Anesthesiology, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota.,Department of Psychiatry, University of Minnesota School of Medicine, Minneapolis, Minnesota
| | - Richard C Prielipp
- Department of Anesthesiology, University of Minnesota School of Medicine, Minneapolis, Minnesota
| | - Ioanna Apostolidou
- From the Department of Anesthesiology, Minneapolis Veterans Affairs Health Care System, Minneapolis, Minnesota.,Department of Anesthesiology, University of Minnesota School of Medicine, Minneapolis, Minnesota
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Assefa MT, Chekol WB, Melesse DY, Nigatu YA. Incidence and Risk Factors of Emergence Delirium after Anesthesia in Elderly Patients at a Postanesthesia Care Unit in Ethiopia: Prospective Observational Study. Patient Relat Outcome Meas 2021; 12:23-32. [DOI: 10.2147/prom.s297871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/28/2021] [Indexed: 11/23/2022] Open
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Henao-Castaño AM, Pachón Cetina LE, Monroy Rodríguez JD. Nursing Delirium Screening Scale, a Tool for Early Detection of Delirium: Integrative Review. AQUICHAN 2020. [DOI: 10.5294/aqui.2020.20.4.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective: To analyze the context and use of the Nursing Delirium Screening Scale (Nu-DESC) for early detection of delirium in adult patients, compiling the available evidence.
Method: Searching for relevant articles on databases such as Cinahl, Medline, Ovid, Scopus, and Web of Science. Inclusion criteria: Articles written in English, Spanish, and Portuguese, published between January 2013 and October 2019. Search terms: “nursing delirium screen,” “inpatient delirium screening,” and “nursing assessment.” We identified 23 articles in which the Nu-DESC was used. Two reviewers independently assessed the articles using the CASPe (Critical Appraisal Skills Program in Spanish) tool.
Results: The Nu-DESC is employed in different contexts such as the adult intensive care unit (ICU), post-anesthetic care unit (PACU), palliative care unit, and hospitalization unit. It is more frequently used in the PACU with a more sensitive threshold (≥ 1); the test showed greater sensitivity of 54.5 % (95 % CI: 32.2–75.6) and specificity of 97.1 % (95 % CI: 95.3–98.4).
Conclusion: The Nu-DESC facilitates the recognition of delirium episodes by the nursing team, makes care quicker and individualized for each patient, avoiding immediate pharmacological interventions, and coordinate interdisciplinary actions for diagnosis, especially in post-anesthetic care units.
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García PS. Meta-analysis and Megadata in Electroencephalogram-Based Techniques for Delirium Prevention. Anesth Analg 2020; 131:709-711. [PMID: 32940441 DOI: 10.1213/ane.0000000000004867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Paul S García
- From the Department of Anesthesiology, Columbia University Medical Center, New York, New York
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Robert D. Sanders, B.Sc., M.B.B.S., Ph.D., F.R.C.A., Recipient of the 2020 James E. Cottrell, M.D., Presidential Scholar Award. Anesthesiology 2020; 133:720-723. [DOI: 10.1097/aln.0000000000003512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Sun Y, Lin D, Wang J, Geng M, Xue M, Lang Y, Cui L, Hao Y, Mu S, Wu D, Liang L, Wu A. Effect of Tropisetron on Prevention of Emergence Delirium in Patients After Noncardiac Surgery: A Trial Protocol. JAMA Netw Open 2020; 3:e2013443. [PMID: 33052400 PMCID: PMC7557499 DOI: 10.1001/jamanetworkopen.2020.13443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
IMPORTANCE Postoperative delirium is a frequent disorder for patients undergoing surgery and is associated with poor outcomes. Delirium may occur in the immediate period after anesthesia administration and surgery. Tropisetron, which is frequently administrated for postoperative nausea and vomiting, is also a partial agonist of α7 nicotinic acetylcholine receptors associated with neuroprotective effects. Tropisetron may be the potential pharmacological treatment to decrease delirium after noncardiac surgery. OBJECTIVE To perform a randomized clinical trial to determine the efficacy and safety of tropisetron for prevention of emergence delirium in patients undergoing noncardiac surgery. DESIGN, SETTING, AND PARTICIPANTS This single-center, 2-arm randomized, double-blind, placebo-controlled trial will include 1508 patients undergoing noncardiac surgery. The intervention group will receive 5 mg of intravenous tropisetron before anesthesia induction, and patients in the control group will receive a placebo. The primary end point is the incidence of emergence delirium within 1 hour after tracheal tube removal, measured by the Confusion Assessment Method for the Intensive Care Unit score. The main secondary outcome is the incidence of postoperative delirium measured at 3 days of follow-up. An intention-to-treat principle will be used for all analyses. DISCUSSION Delirium remains the most common neuropsychiatric complication for patients after surgery. This will be the first randomized clinical study to evaluate whether tropisetron is effective in preventing emergence delirium. Results from this study will provide evidence for alteration of daily practice. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04027751.
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Affiliation(s)
- Yi Sun
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Dandan Lin
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jing Wang
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Mengwen Geng
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Mei Xue
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yayun Lang
- Department of Anesthesiology, Beijing Civil Aviation General Hospital, Beijing, China
| | - Lina Cui
- Department of Anesthesiology, Beijing Huairou District Hospital of Traditional Chinese Medicine, Beijing, China
| | - Yanan Hao
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shanshan Mu
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Dan Wu
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Lirong Liang
- Department of Clinical Epidemiology and Tobacco Dependence Treatment Research, Beijing Chao-Yang Hospital, Capital Medical University, Beijing Institute of Respiratory Medicine, Beijing, China
| | - Anshi Wu
- Department of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Hong JM. Perioperative brain health: strategies to prevent perioperative neurocognitive disorders. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2020. [DOI: 10.5124/jkma.2020.63.9.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cognitive changes in patients after anesthesia and surgery have been recognized for over 100 years. Research on postoperative cognitive changes accelerated in the 1980s and the term postoperative cognitive dysfunction emerged, which was used until recently. Postoperative cognitive dysfunction has been used in research to describe an objectively measurable decline in cognitive function using neuropsychological tests. This dysfunction had significant heterogeneity in the type, number of tests, timing of tests, and the criteria for change. Therefore, a recent article recommended a new nomenclature for perioperative neurocognitive disorders including neurocognitive disorder, postoperative delirium, delayed neurocognitive recovery, and postoperative neurocognitive disorder. Since old age and baseline cognitive impairment are important risk factors for these perioperative neurocognitive disorders, routine preoperative cognitive assessment in all elderly patients is recommended. A preventive strategy is important, since effective modality for the treatment of perioperative neurocognitive disorders is not yet known. Intraoperative monitoring of age-adjusted end-tidal minimal alveolar concentration fraction, electroencephalography-based anesthetic management, and perioperative non-pharmacological methods are recommended for effective prevention.
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Edwards DA, Medhavy A, Hoffman OG, Hoffman GR. Postoperative Delirium is Associated With Prolonged Head and Neck Resection and Reconstruction Surgery: An Institutional Study. J Oral Maxillofac Surg 2020; 79:249-258. [PMID: 32898481 DOI: 10.1016/j.joms.2020.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE Delirium is a recognized complication of surgery. It has a deleterious effect on a patient's postoperative recovery and well-being. The purpose of this study was to estimate the frequency and identify the risk factors for the development of postoperative delirium (POD) in a cohort of patients who underwent extensive head and neck surgery (HNS) of greater than five hours duration. MATERIALS AND METHODS The authors undertook a retrospective cohort study of patients who underwent HNS of greater than five hours duration. The primary predictor variables comprised a set of risk factors (sociodemographic, disease-specific, duration of surgery, and duration of inpatient stay) that were thought to be associated with the development of POD. The primary outcome variable was the development of POD. Descriptive, bivariate, and multivariate statistical analysis was undertaken, and significance was set at P < .05. RESULTS One hundred and seventy patients were included in the study. There were 124 males and 46 females. Forty patients (23.53%) developed POD: 30 documented and 10 inferred. The mean age of the POD cohort was 65 years (SD 13), with a median age of 69 years. The occurrence of POD was statistically related to increased age, mental health status, American Society of Anesthesiologists (ASA) score, and drug dependence (either illicit or prescription). POD and operative duration were statistically associated. POD and length of stay were not statistically associated. CONCLUSION Delirium did occur postoperatively in 23.53% of our patients who underwent extensive and prolonged HNS. POD may go unrecognized by treating teams. As POD has a deleterious effect on the cognitive function, it is important to identify and aggressively treat episodes of POD that occur during a patient's postoperative recovery.
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Affiliation(s)
- Delyth A Edwards
- Consultant (Attending) Anaesthetist, Department of Anaesthetics, John Hunter Hospital, Newcastle, Australia
| | - Aditi Medhavy
- Resident Medical Officer, Liverpool Hospital, Liverpool, Australia
| | - Olivia G Hoffman
- First year Medical Student, The University of Melbourne, Melbourne, Australia
| | - Gary R Hoffman
- Consultant (Attending) in Head and Neck Surgery, Department of Maxillofacial Surgery, John Hunter Hospital, Newcastle, Australia; Professor, Medical School, The University of Newcastle, Newcastle, Australia.
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Perioperative neurocognitive dysfunction: thinking from the gut? Aging (Albany NY) 2020; 12:15797-15817. [PMID: 32805716 PMCID: PMC7467368 DOI: 10.18632/aging.103738] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
With the aging of the world population, and improvements in medical and health technologies, there are increasing numbers of elderly patients undergoing anaesthesia and surgery. Perioperative neurocognitive dysfunction has gradually attracted increasing attention from academics. Very recently, 6 well-known journals jointly recommended that the term perioperative neurocognitive dysfunction (defined according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition) should be adopted to improve the quality and consistency of academic communications. Perioperative neurocognitive dysfunction currently includes preoperatively diagnosed cognitive decline, postoperative delirium, delayed neurocognitive recovery, and postoperative cognitive dysfunction. Increasing evidence shows that the gut microbiota plays a pivotal role in neuropsychiatric diseases, and in central nervous system functions via the microbiota-gut-brain axis. We recently reported that abnormalities in the composition of the gut microbiota might underlie the mechanisms of postoperative cognitive dysfunction and postoperative delirium, suggesting a critical role for the gut microbiota in perioperative neurocognitive dysfunction. This article therefore reviewed recent findings on the linkage between the gut microbiota and the underlying mechanisms of perioperative neurocognitive dysfunction.
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Zheng X, Tan Y, Gao Y, Liu Z. Comparative efficacy of Neuraxial and general anesthesia for hip fracture surgery: a meta-analysis of randomized clinical trials. BMC Anesthesiol 2020; 20:162. [PMID: 32605591 PMCID: PMC7325684 DOI: 10.1186/s12871-020-01074-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 06/15/2020] [Indexed: 11/14/2022] Open
Abstract
Background The choice of anesthesia technique remains debatable in patients undergoing surgical repair of hip fracture. This meta-analysis was performed to compare the effect of neuraxial (epidural/spinal) versus general anesthesia on perioperative outcomes in patients undergoing hip fracture surgery. Methods Medline, Cochrane Library, Science-Direct, and EMBASE databases were searched to identify eligible studies focused on the comparison between neuraxial and general anesthesia in hip fracture patients between January 2000 and May 2019. Perioperative outcomes were extracted for systemic analysis. Sensitivity analyses were conducted using a Bonferroni correction and the leave-one-out method. The evidence quality for each outcome was evaluated by the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. Results Nine randomized controlled trials (RCTs) including 1084 patients fulfilled our selection criteria. The outcomes for the meta-analysis showed that there were no significant differences in the 30-day mortality (OR = 1.34, 95% CI 0.56, 3.21; P = 0.51), length of stay (MD = − 0.65, 95% CI -0.32, 0.02; P = 0.06), and the prevalence of delirium (OR = 1.05, 95% CI 0.27, 4.00; P = 0.95), acute myocardial infarction (OR = 0.88, 95% CI 0.17, 4.65; P = 0.88), deep venous thrombosis (OR = 0.48, 95% CI 0.09, 2.72; P = 0.41), and pneumonia (OR = 1.04, 95% CI 0.23, 4.61; P = 0.96) for neuraxial anesthesia compared to general anesthesia, and there was a significant difference in blood loss between the two groups (MD = − 137.8, 95% CI -241.49, − 34.12; p = 0.009). However, after applying the Bonferroni correction for multiple testing, all the adjusted p-values were above the significant threshold of 0.05. The evidence quality for each outcome evaluated by the GRADE system was low. Conclusions In summary, our present study demonstrated that there might be a difference in blood loss between patients receiving neuraxial and general anaesthesia, however, this analysis was not robust to adjustment for multiple testing and therefore at high risk for a type I error. Due to small sample size and enormous inconsistency in the choice of outcome measures, more high-quality studies with large sample size are needed to clarify this issue.
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Affiliation(s)
- Xinxun Zheng
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, China
| | - Yuming Tan
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, China
| | - Yuan Gao
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, China
| | - Zhiheng Liu
- Department of Anesthesiology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518000, China.
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Hughes CG, Boncyk CS, Culley DJ, Fleisher LA, Leung JM, McDonagh DL, Gan TJ, McEvoy MD, Miller TE. American Society for Enhanced Recovery and Perioperative Quality Initiative Joint Consensus Statement on Postoperative Delirium Prevention. Anesth Analg 2020; 130:1572-1590. [PMID: 32022748 DOI: 10.1213/ane.0000000000004641] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Postoperative delirium is a geriatric syndrome that manifests as changes in cognition, attention, and levels of consciousness after surgery. It occurs in up to 50% of patients after major surgery and is associated with adverse outcomes, including increased hospital length of stay, higher cost of care, higher rates of institutionalization after discharge, and higher rates of readmission. Furthermore, it is associated with functional decline and cognitive impairments after surgery. As the age and medical complexity of our surgical population increases, practitioners need the skills to identify and prevent delirium in this high-risk population. Because delirium is a common and consequential postoperative complication, there has been an abundance of recent research focused on delirium, conducted by clinicians from a variety of specialties. There have also been several reviews and recommendation statements; however, these have not been based on robust evidence. The Sixth Perioperative Quality Initiative (POQI-6) consensus conference brought together a team of multidisciplinary experts to formally survey and evaluate the literature on postoperative delirium prevention and provide evidence-based recommendations using an iterative Delphi process and Grading of Recommendations Assessment, Development and Evaluation (GRADE) Criteria for evaluating biomedical literature.
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Affiliation(s)
- Christopher G Hughes
- From the Department of Anesthesiology, Critical Illness, Brain Dysfunction, and Survivorship (CIBS) Center and the Center for Health Services Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Christina S Boncyk
- From the Department of Anesthesiology, Critical Illness, Brain Dysfunction, and Survivorship (CIBS) Center and the Center for Health Services Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Deborah J Culley
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Lee A Fleisher
- Department of Anesthesiology & Critical Care, Penn Center for Perioperative Outcomes Research and Transformation, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jacqueline M Leung
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, California
| | - David L McDonagh
- Departments of Anesthesiology and Pain Management, Neurological Surgery, and Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Tong J Gan
- Department of Anesthesiology, Stony Brook University Renaissance School of Medicine, Stony Brook, New York
| | - Matthew D McEvoy
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee
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Beck S, Hoop D, Ragab H, Rademacher C, Meßner-Schmitt A, von Breunig F, Haese A, Graefen M, Zöllner C, Fischer M. Postanesthesia care unit delirium following robot-assisted vs open retropubic radical prostatectomy: A prospective observational study. Int J Med Robot 2020; 16:e2094. [PMID: 32073227 DOI: 10.1002/rcs.2094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND The aim of this study was to compare the incidence of early postoperative delirium in the postanesthesia care unit (PACU) between robot-assisted radical prostatectomy (RARP) in the extreme Trendelenburg position and open retropubic radical prostatectomy (ORP) in supine position. METHODS Patients were screened for delirium signs 15, 30, 45, and 60 minutes following extubation. RESULTS PACU delirium was present in 39.3% of RARP (64/163) patients and 41.8% of ORP (77/184) patients. Higher age (OR 1.072, 95%CI: 1.034-1.111, P < .001), total intravenous anesthesia (OR 2.001, 95%CI: 1.243-3.221, P = .004), and anesthesia duration (OR 1.255, 95%CI: 1.067-1.476, P = .006) were associated with PACU delirium, but no association was found between surgical technique and PACU delirium. CONCLUSION Compared with inhalational anesthesia, total intravenous anesthesia using propofol-sufentanil, higher age, and longer duration of anesthesia were associated with PACU delirium. Based on these findings, adverse effects on postoperative recovery and delirium signs do not have to be considered in the choice of surgical approach for radical prostatectomy. TRIAL REGISTRATION https://www.drks.de/, identifier: DRKS00010014.
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Affiliation(s)
- Stefanie Beck
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dennis Hoop
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Haissam Ragab
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cornelius Rademacher
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Aurelie Meßner-Schmitt
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Franziska von Breunig
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alexander Haese
- Martini-Klinik Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Zöllner
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marlene Fischer
- Department of Anesthesiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Perioperative Epidural Use and Risk of Delirium in Surgical Patients: A Secondary Analysis of the PODCAST Trial. Anesth Analg 2020; 128:944-952. [PMID: 30768457 DOI: 10.1213/ane.0000000000004038] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Postoperative delirium is an important public health concern without effective prevention strategies. This study tested the hypothesis that perioperative epidural use would be associated with decreased risk of delirium through postoperative day 3. METHODS This was a secondary, observational, nonrandomized analysis of data from The Prevention of Delirium and Complications Associated With Surgical Treatments Trial (PODCAST; NCT01690988). The primary outcome of the current study was the incidence of delirium (ie, any positive delirium screen, postanesthesia care unit through postoperative day 3) in surgical patients (gastrointestinal, hepatobiliary-pancreatic, gynecologic, and urologic) receiving postoperative epidural analgesia compared to those without an epidural. As a secondary outcome, all delirium assessments were then longitudinally analyzed in relation to epidural use throughout the follow-up period. Given the potential relevance to delirium, postoperative pain, opioid consumption, sleep disturbances, and symptoms of depression were also analyzed as secondary outcomes. A semiparsimonious multivariable logistic regression model was used to test the association between postoperative epidural use and delirium incidence, and generalized estimating equations were used to test associations with secondary outcomes described. Models included relevant covariates to adjust for confounding. RESULTS In total, 263 patients were included for analysis. Epidural use was not independently associated with reduced delirium incidence (adjusted odds ratio, 0.65 [95% CI, 0.32-1.35]; P = .247). However, when analyzing all assessments over the follow-up period, epidural patients were 64% less likely to experience an episode of delirium (adjusted odds ratio, 0.36 [95% CI, 0.17-0.78]; P = .009). Adjusted pain scores (visual analog scale, 0-100 mm) were significantly lower in the epidural group on postoperative day 1 (morning, -16 [95% CI, -26 to -7], P < .001; afternoon, -15 [95% CI, -25 to -5], P < .01) and postoperative day 3 (morning, -13 [95% CI, -20 to -5], P < .01). Adjusted mean oral and IV morphine equivalents were also significantly lower on postoperative day 1 in the epidural group (74% lower [95% CI, 55%-85%]; P < .0001). Finally, postoperative epidural use was not significantly associated with new sleep disturbances or changes in depression symptoms. CONCLUSIONS Postoperative epidural use was not associated with a reduced overall incidence of delirium. However, longitudinal analysis revealed reduced adjusted odds of experiencing an episode of delirium in the epidural group. Epidural use was also associated with reduced postoperative pain and opioid consumption. An appropriately designed follow-up study is warranted to further analyze the relationship among epidural use, postoperative delirium, and related outcomes.
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Incidence and risk factors of postoperative delirium in patients admitted to the ICU after elective intracranial surgery. Eur J Anaesthesiol 2020; 37:14-24. [DOI: 10.1097/eja.0000000000001074] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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McNeil J, Denis AM, Michel U, Concert CM. Effectiveness of non-pharmacological strategies for managing delirium in hospitalized postoperative adults: an umbrella review protocol. ACTA ACUST UNITED AC 2019. [PMID: 29521857 DOI: 10.11124/jbisrir-2017-003455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
REVIEW QUESTION/OBJECTIVE The question of this review: What is the effectiveness of non-pharmacological strategies for the management of delirium in hospitalized adult postoperative patients?The objective of this umbrella review is to determine the effectiveness of non-pharmacological strategies for the management of delirium in adult postoperative patients, 18 years and over, in an acute care hospitalized setting.More specifically, the review aims to identify which non-pharmacological strategy/strategies, provided as a single strategy or combined as two or more strategies, is the most effective for management of delirium in hospitalized postoperative adult patients?
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Affiliation(s)
- Joan McNeil
- College of Health Professions, Pace University, New York, USA
| | | | - Urick Michel
- College of Health Professions, Pace University, New York, USA
| | - Catherine M Concert
- College of Health Professions, Pace University, New York, USA.,The Northeast Institute for Evidence Synthesis and Translation (NEST): a Joanna Briggs Institute Center of Excellence
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Hemmings HC, Riegelhaupt PM, Kelz MB, Solt K, Eckenhoff RG, Orser BA, Goldstein PA. Towards a Comprehensive Understanding of Anesthetic Mechanisms of Action: A Decade of Discovery. Trends Pharmacol Sci 2019; 40:464-481. [PMID: 31147199 DOI: 10.1016/j.tips.2019.05.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/11/2019] [Accepted: 05/03/2019] [Indexed: 12/30/2022]
Abstract
Significant progress has been made in the 21st century towards a comprehensive understanding of the mechanisms of action of general anesthetics, coincident with progress in structural biology and molecular, cellular, and systems neuroscience. This review summarizes important new findings that include target identification through structural determination of anesthetic binding sites, details of receptors and ion channels involved in neurotransmission, and the critical roles of neuronal networks in anesthetic effects on memory and consciousness. These recent developments provide a comprehensive basis for conceptualizing pharmacological control of amnesia, unconsciousness, and immobility.
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Affiliation(s)
- Hugh C Hemmings
- Departments of Anesthesiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA; Departments of Pharmacology, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA
| | - Paul M Riegelhaupt
- Departments of Anesthesiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA
| | - Max B Kelz
- Department of Anesthesiology and Critical Care, University of Pennsylvania Perelman School of Medicine, 3620 Hamilton Walk, 305 John Morgan, Philadelphia, PA 19104, USA
| | - Ken Solt
- Department of Anaesthesia, Harvard Medical School, GRB 444, 55 Fruit St., Boston, MA 02114, USA; Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Roderic G Eckenhoff
- Department of Anesthesiology and Critical Care, University of Pennsylvania Perelman School of Medicine, 3620 Hamilton Walk, 305 John Morgan, Philadelphia, PA 19104, USA
| | - Beverley A Orser
- Departments of Anesthesia and Physiology, Room 3318 Medical Sciences Building, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Peter A Goldstein
- Departments of Anesthesiology, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA; Departments of Medicine, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA.
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Saller T, MacLullich AMJ, Schäfer ST, Crispin A, Neitzert R, Schüle C, Dossow V, Hofmann‐Kiefer KF. Screening for delirium after surgery: validation of the 4 A's test (4AT) in the post‐anaesthesia care unit. Anaesthesia 2019; 74:1260-1266. [DOI: 10.1111/anae.14682] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2019] [Indexed: 12/19/2022]
Affiliation(s)
- T. Saller
- Department of Anaesthesiology University Hospital LMU Munich Germany
- German Association for Anaesthesiology and Intensive Care Medicine NurembergGermany
| | - A. M. J. MacLullich
- Edinburgh Delirium Research Group Geriatric Medicine Unit Edinburgh Royal Infirmary of Edinburgh UK
| | - S. T. Schäfer
- Department of Anaesthesiology University Hospital LMU Munich Germany
- German Association for Anaesthesiology and Intensive Care Medicine NurembergGermany
| | - A. Crispin
- Institute of Medical Data Processing, Biometrics and Epidemiology (IBE) Faculty of Medicine LMU Munich Germany
| | - R. Neitzert
- Department of Anaesthesiology University Hospital LMU Munich Germany
| | - C. Schüle
- Department of Psychiatry and Psychotherapy University Hospital LMU Munich Germany
| | - V. Dossow
- German Association for Anaesthesiology and Intensive Care Medicine NurembergGermany
- Institute for Anaesthesiology, Heart and Diabetes Center NRW Ruhr University of Bochum Bad Oeynhausen Germany
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Ayob F, Lam E, Ho G, Chung F, El-Beheiry H, Wong J. Pre-operative biomarkers and imaging tests as predictors of post-operative delirium in non-cardiac surgical patients: a systematic review. BMC Anesthesiol 2019; 19:25. [PMID: 30797230 PMCID: PMC6387490 DOI: 10.1186/s12871-019-0693-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 02/08/2019] [Indexed: 02/06/2023] Open
Abstract
Background Post-operative delirium (POD) is a common post-operative complication in elderly individuals and imposes a significant health and financial burden. Identifying predictive biomarkers may help understand the pathophysiology of POD. Our objective is to summarize the evidence of pre-operative biomarkers and imaging tests to predict POD in patients undergoing non-cardiac surgery. Methods A systematic search of English language articles in MEDLINE, EMBASE, Cochrane Database, PsychINFO, PubMed and ClinicalTrials. Gov up to January 2018 was performed. Studies that used biomarkers or imaging tests to predict POD and a validated POD assessment tool were included. Animal studies, paediatric, cardiac and intracranial surgery were excluded. Risk of bias was assessed using the Quality In Prognosis Study tool. Results Thirty-four prospective cohort studies involving 4424 patients were included. Nineteen studies described serum tests [Interleukin-6, Insulin-like Growth Factor 1, C-Reactive Protein (CRP), cholinesterases, apolipoprotein-E genotype, leptin, hypovitaminosis, hypoalbuminaemia, gamma-amino butyric acid], 10 described cerebral-spinal fluid tests (monoamine precursor, melatonin, acute phase proteins, S100B and neurofibrillary tangles), and 5 described imaging tests. Two studies had high risk of bias due to unclear outcome measurement and study participation. CRP was significantly associated with POD in 5 studies. Other biomarkers were either examined by only a single study or two or more studies with conflicting results. Conclusion CRP is the most promising biomarker associated with POD. However, we are still in the early stages in identifying biomarkers and imaging tests that may further understanding of the pathophysiology of POD. Electronic supplementary material The online version of this article (10.1186/s12871-019-0693-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Farrah Ayob
- Department of Anesthesia, Toronto Western Hospital, University Health Network, 2-434 McLaughlin Wing, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada
| | - Enoch Lam
- Department of Anesthesia, Toronto Western Hospital, University Health Network, 2-434 McLaughlin Wing, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada
| | - George Ho
- Faculty of Medicine, University of Toronto, 1 King's College Circle, Medical Sciences Building, Room 2109, Toronto, ON, M5S 1A8, Canada
| | - Frances Chung
- Department of Anesthesia, Toronto Western Hospital, University Health Network, 2-434 McLaughlin Wing, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada
| | - Hossam El-Beheiry
- Department of Anesthesia, Trillium Health Partners, Mississauga Hospital, 100 Queensway, West, Mississauga, ON, L5B 1B, Canada
| | - Jean Wong
- Department of Anesthesia, Toronto Western Hospital, University Health Network, 2-434 McLaughlin Wing, 399 Bathurst Street, Toronto, ON, M5T 2S8, Canada. .,Women's College Hospital, Toronto, Ontario, 76 Grenville St, Toronto, ON, M5S 1B2, Canada.
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Gaskell A, Pullon R, Hight D, Termaat J, Mans G, Voss L, Kreuzer M, Schmid S, Kratzer S, Rodriguez A, Schneider G, Garcia P, Sleigh J. Modulation of frontal EEG alpha oscillations during maintenance and emergence phases of general anaesthesia to improve early neurocognitive recovery in older patients: protocol for a randomised controlled trial. Trials 2019; 20:146. [PMID: 30795794 PMCID: PMC6387545 DOI: 10.1186/s13063-019-3178-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 01/03/2019] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Postoperative delirium may manifest in the immediate post-anaesthesia care period. Such episodes appear to be predictive of further episodes of inpatient delirium and associated adverse outcomes. Frontal electroencephalogram (EEG) findings of suppression patterns and low proprietary index values have been associated with postoperative delirium and poor outcomes. However, the efficacy of titrating anaesthesia to proprietary index targets for preventing delirium remains contentious. We aim to assess the efficacy of two strategies which we hypothesise could prevent post-anaesthesia care unit (PACU) delirium by maximising the alpha oscillation observed in frontal EEG channels during the maintenance and emergence phases of anaesthesia. METHODS This is a 2 × 2 factorial, double-blind, stratified, randomised control trial of 600 patients. Eligible patients are those aged 60 years or over who are undergoing non-cardiac, non-intracranial, volatile-based anaesthesia of expected duration of more than 2 h. Patients will be stratified by pre-operative cognitive status, surgery type and site. For the maintenance phase of anaesthesia, patients will be randomised (1:1) to an alpha power-maximisation anaesthesia titration strategy versus standard care avoiding suppression patterns in the EEG. For the emergence phase of anaesthesia, patients will be randomised (1:1) to early cessation of volatile anaesthesia and emergence from an intravenous infusion of propofol versus standard emergence from volatile anaesthesia only. The primary study outcomes are the power of the frontal alpha oscillation during the maintenance and emergence phases of anaesthesia. Our main clinical outcome of interest is PACU delirium. DISCUSSION This is a largely exploratory study; the extent to which EEG signatures can be modified by titration of pharmacological agents is not known. The underlying concept is maximisation of anaesthetic efficacy by individualised drug titration to a clearly defined EEG feature. The interventions are already clinically used strategies in anaesthetic practice, but have not been formally evaluated. The addition of propofol during the emergence phase of volatile-based general anaesthesia is known to reduce emergence delirium in children; however, the efficacy of this strategy in older patients is not known. TRIAL REGISTRATION Australian and New Zealand Clinical Trial Registry, ID: 12617001354370 . Registered on 27/09/2017.
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Affiliation(s)
- Amy Gaskell
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
| | - Rebecca Pullon
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
| | - Darren Hight
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jonathan Termaat
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
| | - Gay Mans
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
| | - Logan Voss
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
| | - Matthias Kreuzer
- Department for Anesthesiology and Critical Care, Technische Universität München, Munich, Germany
| | - Sebastian Schmid
- Department for Anesthesiology and Critical Care, Technische Universität München, Munich, Germany
| | - Stephan Kratzer
- Department for Anesthesiology and Critical Care, Technische Universität München, Munich, Germany
| | - Amy Rodriguez
- Center for Visual and Neurocognitive Rehabilitation, Atlanta VA Medical Center, Atlanta, GA USA
- Department of Neurology, Emory University School of Medicine, Atlanta, GA USA
| | - Gerhard Schneider
- Department for Anesthesiology and Critical Care, Technische Universität München, Munich, Germany
| | - Paul Garcia
- Department of Bioinformatics, Emory University School of Medicine, Atlanta, GA USA
- Department of Anesthesiology, Columbia University, New York, USA
- Neuroanaesthesia Division, Columbia University Medical Center, New York, USA
- New York Presbyterian Hospital, Irving, New York, USA
| | - Jamie Sleigh
- Department of Anaesthesiology, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand
- Department of Anaesthesia and Pain Medicine, Waikato District Health Board, Hamilton, New Zealand
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Han DW. Do you believe that processed EEG helps to prevent intraoperative awareness? Korean J Anesthesiol 2018; 71:427-429. [PMID: 30508477 PMCID: PMC6283715 DOI: 10.4097/kja.d.18.00309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 12/02/2022] Open
Affiliation(s)
- Dong Woo Han
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Sleigh J, Sanders RW. Slow waves, cognitive disintegration, and delirium. Br J Anaesth 2018; 122:9-11. [PMID: 30579412 DOI: 10.1016/j.bja.2018.10.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 12/21/2022] Open
Affiliation(s)
- J Sleigh
- Department of Anaesthesia, Waikato Clinical Campus, University of Auckland, Hamilton, New Zealand.
| | - R W Sanders
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
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Association of electroencephalogram trajectories during emergence from anaesthesia with delirium in the postanaesthesia care unit: an early sign of postoperative complications. Br J Anaesth 2018; 122:622-634. [PMID: 30915984 DOI: 10.1016/j.bja.2018.09.016] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 08/21/2018] [Accepted: 09/11/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Postoperative delirium is associated with an increased risk of morbidity and mortality, especially in the elderly. Delirium in the postanaesthesia care unit (PACU) could predict adverse clinical outcomes. METHODS We investigated a potential link between intraoperative EEG patterns and PACU delirium as well as an association of PACU delirium with perioperative outcomes, readmission and length of hospital stay. The risk factors for PACU delirium were also explored. Data were collected from 626 patients receiving general anaesthesia for procedures that would not interfere with frontal EEG recording. RESULTS Of the 626 subjects enrolled, 125 tested positive for PACU delirium. Whilst age, renal failure, and pre-existing neurological disease were associated with PACU delirium in the univariable analysis, the multivariable analysis revealed the importance of information derived from the EEG, anaesthetic technique, anaesthesia duration, and history of stroke or neurodegenerative disease. The occurrence of EEG burst suppression during maintenance [odds ratio (OR)=1.86 (1.13-3.05)] and the type of EEG emergence trajectory may be predictive of PACU delirium. Specifically, EEG emergence trajectories lacking significant spindle power were strongly associated with PACU delirium, especially in cases that involved ketamine or nitrous oxide [OR=6.51 (3.00-14.12)]. Additionally, subjects with PACU delirium were at an increased risk for readmission [OR=2.17 (1.13-4.17)] and twice as likely to stay >6 days in the hospital. CONCLUSIONS Specific EEG patterns were associated with PACU delirium. These findings provide valuable information regarding how the brain reacts to surgery and anaesthesia that may lead to strategies to predict PACU delirium and identify key areas of investigation for its prevention.
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Abstract
We provide a synopsis of innovative research, recurring themes, and novel experimental findings pertinent to the care of neurosurgical patients and critically ill patients with neurological diseases. We cover the following broad topics: general neurosurgery, spine surgery, stroke, traumatic brain injury, monitoring, and anesthetic neurotoxicity.
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