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He M, Zhu Z, Jiang M, Liu X, Wu R, Zhou J, Chen X, Liu C. Risk Factors for Postanesthetic Emergence Delirium in Adults: A Systematic Review and Meta-analysis. J Neurosurg Anesthesiol 2024; 36:190-200. [PMID: 37916963 PMCID: PMC11161228 DOI: 10.1097/ana.0000000000000942] [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: 04/18/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023]
Abstract
Emergence delirium (ED) is delirium that occurs during or immediately after emergence from general anesthesia or sedation. Effective pharmacological treatments for ED are lacking, so preventive measures should be taken to minimize the risk of ED. However, the risk factors for ED in adults are unclear. In this systematic review and meta-analysis, we evaluated the evidence for risk factors for ED in adults. The PubMed, Scopus, Cochrane Library, Google Scholar, and Embase databases were searched for observational studies reporting the risk factors for ED in adults from inception to July 31, 2023. Twenty observational studies reporting 19,171 participants were included in this meta-analysis. Among the preoperative factors identified as risk factors for ED were age <40 or ≥65 years, male sex, smoking history, substance abuse, cognitive impairment, anxiety, and American Society of Anesthesiologists physical status score III or IV. Intraoperative risk factors for ED were the use of benzodiazepines, inhalational anesthetics, or etomidate, and surgical factors including abdominal surgery, frontal craniotomy (vs. other craniotomy approaches) for cerebral tumors, and the length of surgery. Postoperative risk factors were indwelling urinary catheters, the presence of a tracheal tube in the postanesthetic care unit or intensive care unit, the presence of a nasogastric tube, and pain. Knowledge of these risk factors may guide the implementation of stratified management and timely interventions for patients at high risk of ED. The majority of studies included in this review investigated only hyperactive ED and further research is required to determine risk factors for hypoactive and mixed ED types.
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Affiliation(s)
- Miao He
- Department of Anesthesiology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu
| | - Zhaoqiong Zhu
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou
- Suzhou Medical College of Soochow University, Suzhou, Jiangsu
| | - Min Jiang
- Department of Anesthesiology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan
| | - Xingxing Liu
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou
| | - Rui Wu
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou
| | - Junjie Zhou
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou
| | - Xi Chen
- School of Health, Brooks College, Sunnyvale, CA
| | - Chengjiang Liu
- Department of General Practice, Anhui Medical University, He Fei, Anhui, China
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Xu F, Zhong X. Clinical Significance of the Prognostic Nutritional Index in Predicting Delirium among Critically Ill Patients: A Retrospective Cohort Study. Crit Care Res Pract 2024; 2024:3807532. [PMID: 38766547 PMCID: PMC11102111 DOI: 10.1155/2024/3807532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/15/2024] [Accepted: 04/23/2024] [Indexed: 05/22/2024] Open
Abstract
Delirium is a serious and complex problem facing critically ill patients. This retrospective study aimed to explore the association between prognostic nutrition index (PNI) and delirium in critically ill patients in the intensive care unit (ICU). This study was based on the Medical Information Mart Intensive Care IV (MIMIC IV) database. Patients over 18 years of age were enrolled. Univariate and multivariate logistic regression analyses were performed to explore the association between PNI and delirium. Tendency analysis, subgroups analysis, and restricted cubic spline (RCS) were selected to further certify the association. The receiver operating characteristic curve (ROC) was adopted to assess the predictability of PNI to delirium. Propensity score matching (PSM) was used to reduce the interference of confounders. A total of 3,105 patients participated in this study. As the grade of malnutrition increases, the incidence of delirium increases in all models. The odds ratios (OR) of delirium in the fully adjusted model were 1.00 (reference), 1.04 (0.80, 1.36), 1.53 (1.17, 1.99), and 1.93 (1.44, 2.59). Strong U-shaped curves were found with RCS analysis between delirium and PNI in the subgroups of patients over 60 years of age and patients with chronic obstructive pulmonary disease (COPD). After PSM, the ORs of delirium were 1.44 (1.16, 1.79) and 1.53 (1.22, 1.93), respectively, in the univariate and multivariate logistic regression models. PNI is negatively associated with the prevalence of delirium in critically ill adults in the ICU. PNI is an independent risk factor for the incidence of delirium in adults in the ICU.
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Affiliation(s)
- Feifei Xu
- Department of Intensive Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xi Zhong
- Department of Intensive Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
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Wei F, Cheng H, He R, Yang X, Hu Z, Lyu J, Wang Y. Geriatric nutritional risk index independently predicts delirium in older patients in intensive care units: A multicenter cohort study. Arch Gerontol Geriatr 2024; 118:105288. [PMID: 38056103 DOI: 10.1016/j.archger.2023.105288] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Malnutrition is associated with clinical outcomes in several diseases. However, the role of malnutrition in the risk of delirium in elderly patients in intensive care units (ICU) remains unclear. This study aimed to elucidate the association between the Geriatric Nutritional Risk Index (GNRI) and the risk of delirium in elderly patients in the ICU. METHODS Elderly patients from the Medical Information Mart for Intensive Care IV (MIMIC-IV) and the eICU Collaborative Research Database (eICU-CRD) were included in this study, totaling 11,310 and 5,627, respectively. All subjects were stratified according to their GNRI score: those with no nutritional risk (GNRI > 98), mild nutritional risk (92 ≤ GNRI ≤ 98), moderate nutritional risk (82 ≤ GNRI ≤ 92), and severe nutritional risk (GNRI < 82). The primary outcome was delirium. RESULTS The GNRI in MIMIC-IV and eICU-CRD were 93.82 (84.88, 101.26) and 83.39 (75.95, 89.35), respectively. Compared to the cohort without nutritional risk, there was an increased risk of delirium in patients with mild nutritional risk (OR: 1.39, 95 % CI: 1.23-1.58), moderate nutritional risk (OR: 1.72, 95 % CI: 1.52-1.95), and severe nutritional risk (OR: 2.07, 95 % CI: 1.79-2.39). Inclusion of the GNRI score in the multivariate models improved the prediction of delirium. Similar results were found in the eICU-CRD database. CONCLUSIONS Nutritional assessment using the GNRI may be an independent predictor of the development of delirium in elderly patients in the ICU. The addition of the GNRI score to the delirium prediction model improves its predictive accuracy.
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Affiliation(s)
- Fangxin Wei
- School of Nursing, Jinan University, Guangzhou, Guangdong, China
| | - Hongtao Cheng
- School of Nursing, Jinan University, Guangzhou, Guangdong, China
| | - Ruiyao He
- School of Nursing, Jinan University, Guangzhou, Guangdong, China
| | - Xin Yang
- School of Nursing, Jinan University, Guangzhou, Guangdong, China
| | - Ziqi Hu
- School of Nursing, Jinan University, Guangzhou, Guangdong, China
| | - Jun Lyu
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, China; Guangdong Provincial Key Laboratory of Traditional Chinese Medicine Informatization, Guangzhou, China.
| | - Yu Wang
- The Community Service Center of Jinan University, The First Affiliated Hospital of Jinan University, Guangzhou, China.
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Chen Z, Hao Q, Sun R, Zhang Y, Fu H, Liu S, Luo C, Chen H, Zhang Y. Predictive value of the geriatric nutrition risk index for postoperative delirium in elderly patients undergoing cardiac surgery. CNS Neurosci Ther 2024; 30:e14343. [PMID: 37408469 PMCID: PMC10848042 DOI: 10.1111/cns.14343] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 05/07/2023] [Accepted: 06/24/2023] [Indexed: 07/07/2023] Open
Abstract
AIMS The aims of the study were to determine the relationship between preoperative geriatric nutritional risk index (GNRI) and the occurrence of postoperative delirium (POD) in elderly patients after cardiac surgery and to evaluate the additive value of GNRI for predicting POD. METHODS The data were extracted from the Multiparameter Intelligent Monitoring in Intensive Care (MIMIC-IV) database. Patients who underwent cardiac surgery and were aged 65 or older were included. The relationship between preoperative GNRI and POD was investigated using logistic regression. We determined the added predictive value of preoperative GNRI for POD by measuring the changes in the area under the receiver operating characteristic curve (AUC) and calculating the net reclassification improvement (NRI) and integrated discrimination improvement (IDI). RESULTS A total of 4286 patients were included in the study, and 659 (16.1%) developed POD. Patients with POD had significantly lower GNRI scores than patients without POD (median 111.1 vs. 113.4, p < 0.001). Malnourished patients (GNRI ≤ 98) had a significantly higher risk of POD (odds ratio, 1.83, 90% CI, 1.42-2.34, p < 0.001) than those without malnutrition (GNRI > 98). This correlation remains after adjusting for confounding variables. The addition of GNRI to the multivariable models slightly but not significantly increases the AUCs (all p > 0.05). Incorporating GNRI increases NRIs in some models and IDIs in all models (all p < 0.05). CONCLUSIONS Our results showed a negative association between preoperative GNRI and POD in elderly patients undergoing cardiac surgery. The addition of GNRI to POD prediction models may improve their predictive accuracy. However, these findings were based on a single-center cohort and will need to be validated in future studies involving multiple centers.
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Affiliation(s)
- Zhiqiang Chen
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Quanshui Hao
- Department of AnesthesiologyHuanggang Central Hospital of Yangtze UniversityHuanggangChina
| | - Rao Sun
- Department of Anesthesiology, Tongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Yanjing Zhang
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Hui Fu
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Shile Liu
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Chenglei Luo
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Hanwen Chen
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
| | - Yiwen Zhang
- Department of Anesthesiology, Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)FoshanChina
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Liu X, Wang Y, Wu J, Ye C, Ma D, Wang E. Emergence delirium and postoperative delirium associated with high plasma NfL and GFAP: an observational study. Front Med (Lausanne) 2023; 10:1107369. [PMID: 37576000 PMCID: PMC10419211 DOI: 10.3389/fmed.2023.1107369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Background Neuroinflammation and neuronal injury have been reported to be associated with the development of postoperative delirium in both preclinical and clinical settings. This study aimed to investigate the potential correlation between biomarkers of neurofilament light chain and glial fibrillary acidic protein and emergence and postoperative delirium in elderly patients undergoing surgery. Methods Patients who developed emergence delirium (n = 30) and postoperative delirium (n = 32), along with their matched controls, were enrolled after obtaining ethics approval and written informed consent. Delirium was assessed using the Confusion Assessment Method for the Intensive Care Unit or Confusion Assessment Method scale, and blood samples were collected before and after surgery for plasma neurofilament light chain and glial fibrillary acidic protein measurements using a single-molecule array. Results The study found that in patients with emergence delirium, the increase in plasma neurofilament light chain protein levels during surgery was significantly higher than in non-delirium patients (P = 0.002). Additionally, in patients with postoperative delirium, both the increase in plasma neurofilament light chain protein levels (P < 0.001) and the increase in plasma glial fibrillary acidic protein levels during surgery (P = 0.008) were significantly higher than in non-delirium patients. Multivariate logistic regression analysis showed that the increase in plasma neurofilament light chain protein was associated with emergence delirium (adjusted OR = 1.872, P = 0.005), and the increase in plasma glial fibrillary acidic protein was associated with postoperative delirium (adjusted OR = 1.419, P = 0.016). Moreover, the American Society of Anesthesiologists Physical Status Classification and surgical duration were also found to be associated with delirium in elderly patients. Conclusion Our findings suggest that emergence delirium is linked to elevated levels of neurofilament light chain, a biomarker of axonal injury, during surgery. Furthermore, in addition to axonal injury, postoperative delirium was also associated with an increase in glial fibrillary acidic protein, a marker of astrocyte activation.
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Affiliation(s)
- Xingyang Liu
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanfeng Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinghan Wu
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chunyan Ye
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Daqing Ma
- Division of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - E. Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Ormseth CH, LaHue SC, Oldham MA, Josephson SA, Whitaker E, Douglas VC. Predisposing and Precipitating Factors Associated With Delirium: A Systematic Review. JAMA Netw Open 2023; 6:e2249950. [PMID: 36607634 PMCID: PMC9856673 DOI: 10.1001/jamanetworkopen.2022.49950] [Citation(s) in RCA: 70] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
IMPORTANCE Despite discrete etiologies leading to delirium, it is treated as a common end point in hospital and in clinical trials, and delirium research may be hampered by the attempt to treat all instances of delirium similarly, leaving delirium management as an unmet need. An individualized approach based on unique patterns of delirium pathophysiology, as reflected in predisposing factors and precipitants, may be necessary, but there exists no accepted method of grouping delirium into distinct etiologic subgroups. OBJECTIVE To conduct a systematic review to identify potential predisposing and precipitating factors associated with delirium in adult patients agnostic to setting. EVIDENCE REVIEW A literature search was performed of PubMed, Embase, Web of Science, and PsycINFO from database inception to December 2021 using search Medical Subject Headings (MeSH) terms consciousness disorders, confusion, causality, and disease susceptibility, with constraints of cohort or case-control studies. Two reviewers selected studies that met the following criteria for inclusion: published in English, prospective cohort or case-control study, at least 50 participants, delirium assessment in person by a physician or trained research personnel using a reference standard, and results including a multivariable model to identify independent factors associated with delirium. FINDINGS A total of 315 studies were included with a mean (SD) Newcastle-Ottawa Scale score of 8.3 (0.8) out of 9. Across 101 144 patients (50 006 [50.0%] male and 49 766 [49.1%] female patients) represented (24 015 with delirium), studies reported 33 predisposing and 112 precipitating factors associated with delirium. There was a diversity of factors associated with delirium, with substantial physiological heterogeneity. CONCLUSIONS AND RELEVANCE In this systematic review, a comprehensive list of potential predisposing and precipitating factors associated with delirium was found across all clinical settings. These findings may be used to inform more precise study of delirium's heterogeneous pathophysiology and treatment.
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Affiliation(s)
- Cora H. Ormseth
- Department of Emergency Medicine, University of California, San Francisco
| | - Sara C. LaHue
- Department of Neurology, University of California, San Francisco
| | - Mark A. Oldham
- Department of Psychiatry, University of Rochester Medical Center, Rochester, New York
| | | | - Evans Whitaker
- University of California, San Francisco, School of Medicine
| | - Vanja C. Douglas
- Department of Neurology, University of California, San Francisco
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Igwe EO, Ding P, Charlton KE, Nealon J, Traynor V. Association between Malnutrition and Delirium in Older Chronic Kidney Disease Patients Admitted to Intensive Care Units: A Data Linkage Study. J Nutr Health Aging 2023; 27:571-577. [PMID: 37498104 DOI: 10.1007/s12603-023-1938-5] [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: 05/14/2023] [Accepted: 06/09/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Independently, malnutrition and delirium in older hospitalised adults is prevalent. However, there is limited evidence on the association between these two conditions in older hospitalised adults with chronic kidney disease (CKD). OBJECTIVES To determine the association between malnutrition and delirium in older CKD patients admitted to intensive care units (ICU). METHODS This data linkage study utilised administrative data from New South Wales (NSW) hospitals in Australia between 2017 and 2020.Admitted patient data was linked with Cause of Death Unit Record File, and NSW Registry of Deaths (RBD). The study population comprised all CKD patients aged 65 and over admitted to ICUs. Descriptive statistics were used to summarise patient characteristics. Binary logistic tested for association between malnutrition and delirium. RESULTS The study population included 748 CKD patients with a total 948 admissions in the study period. The International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10) was used to code for all outcomes and comorbidities. The incidence of delirium was 15.5% (n=141) and malnutrition was recorded in 11.3% (n=103) across all admissions. The adjusted odds ratio (OR) of a delirium diagnosis was 2.07 (95% CI: 1.27-3.39) for CKD patients that were malnourished compared to non-malnourished CKD patients. CONCLUSIONS This study showed a significant association between delirium and malnutrition in older CKD patients admitted to ICU. Management of malnutrition could be critical in reducing the risk of delirium in older hospitalized patients with CKD. Additionally, more education and awareness around delirium and its association with malnutrition are needed in clinical practice.
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Affiliation(s)
- E O Igwe
- Ezinne O. Igwe, School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia, Telephone number: +61 24 239 2035, E-mail address:
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