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Luo M, Wang D, Shi Y, Yi Q, Wang Z, Zhou B, Yang G, Chen J, Liang C, Wang H, Zeng X, Yang Y, Tan R, Xie Y, Chen J, Tang S, Huang J, Mei Z, Xiao Z. Risk factors of postoperative delirium following spine surgery: A meta-analysis of 50 cohort studies with 1.1 million participants. Heliyon 2024; 10:e24967. [PMID: 38322910 PMCID: PMC10844026 DOI: 10.1016/j.heliyon.2024.e24967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 12/11/2023] [Accepted: 01/17/2024] [Indexed: 02/08/2024] Open
Abstract
Objectives Postoperative delirium (POD) is considered to be a common complication of spine surgery. Although many studies have reported the risk factors associated with POD, the results remain unclear. Therefore, we performed a meta-analysis to identify risk factors for POD among patients following spinal surgery. Methods We systematically searched the PubMed, Embase and the Cochrane Library for relevant articles published from 2006 to February 1, 2023 that reported risk factors associated with the incidence of POD among patients undergoing spinal surgery. The Meta-Analysis of Observational Studies in Epidemiology (MOOSE) guidelines were followed, and random effects models were used to estimate pooled odds ratio (OR) estimates with 95 % confidence intervals (CIs) for each factor. The evidence from observational studies was classified according to Egger's P value, total sample size, and heterogeneity between studies. Results Of 11,329 citations screened, 50 cohort studies involving 1,182,719 participants met the inclusion criteria. High-quality evidence indicated that POD was associated with hypertension, diabetes mellitus, cardiovascular disease, pulmonary disease, older age (>65 years), patients experiencing substance use disorder (take drug ≥1 month), cerebrovascular disease, kidney disease, neurological disorder, parkinsonism, cervical surgery, surgical site infection, postoperative fever, postoperative urinary tract infection, and admission to the intensive care unit (ICU). Moderate-quality evidence indicated that POD was associated with depression, American Society of Anesthesiologists (ASA) fitness grade (>II), blood transfusion, abnormal potassium, electrolyte disorder, length of stay, inability to ambulate and intravenous fluid volume. Conclusions Conspicuous risk factors for POD were mainly patient- and surgery-related. These findings help clinicians identify high-risk patients with POD following spinal surgery and recognize the importance of early intervention.
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Affiliation(s)
- Mingjiang Luo
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Di Wang
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Yuxin Shi
- Department of Pediatric Dentistry, First Affiliated Hospital (Affiliated Stomatological Hospital) of Xinjiang Medical University, Urumqi 830054, China
| | - Qilong Yi
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Zhongze Wang
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Beijun Zhou
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Gaigai Yang
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Juemiao Chen
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Can Liang
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Haoyun Wang
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Xin Zeng
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Yuxin Yang
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Ridong Tan
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Yudie Xie
- Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Jiang Chen
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Siliang Tang
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Jinshan Huang
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
| | - Zubing Mei
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
- Department of Anorectal Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Anorectal Disease Institute of Shuguang Hospital, Shanghai, China
| | - Zhihong Xiao
- The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, China
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Baek W, Lee J, Jang Y, Kim J, Shin DA, Park H, Koo BN, Lee H. Assessment of Risk Factors for Postoperative Delirium in Older Adults Who Underwent Spinal Surgery and Identifying Associated Biomarkers Using Exosomal Protein. J Korean Acad Nurs 2023; 53:371-384. [PMID: 37673813 DOI: 10.4040/jkan.22146] [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: 11/28/2022] [Revised: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 09/08/2023]
Abstract
PURPOSE With an increase in the aging population, the number of patients with degenerative spinal diseases undergoing surgery has risen, as has the incidence of postoperative delirium. This study aimed to investigate the risk factors affecting postoperative delirium in older adults who had undergone spine surgery and to identify the associated biomarkers. METHODS This study is a prospective study. Data of 100 patients aged ≥ 70 years who underwent spinal surgery were analyzed. Demographic data, medical history, clinical characteristics, cognitive function, depression symptoms, functional status, frailty, and nutritional status were investigated to identify the risk factors for delirium. The Confusion Assessment Method, Delirium Rating Scale-R-98, and Nursing Delirium Scale were also used for diagnosing delirium. To discover the biomarkers, urine extracellular vesicles (EVs) were analyzed for tau, ubiquitin carboxy-terminal hydrolase L1 (UCH-L1), neurofilament light, and glial fibrillary acidic protein using digital immunoassay technology. RESULTS Nine patients were excluded, and data obtained from the remaining 91 were analyzed. Among them, 18 (19.8%) developed delirium. Differences were observed between participants with and without delirium in the contexts of a history of mental disorder and use of benzodiazepines (p = .005 and p = .026, respectively). Tau and UCH-L1-concentrations of urine EVs-were comparatively higher in participants with severe delirium than that in participants without delirium (p = .002 and p = .001, respectively). CONCLUSION These findings can assist clinicians in accurately identifying the risk factors before surgery, classifying high-risk patients, and predicting and detecting delirium in older patients. Moreover, urine EV analysis revealed that postoperative delirium following spinal surgery is most likely associated with brain damage.
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Affiliation(s)
- Wonhee Baek
- Department of Nursing, Yonsei University Graduate School, Seoul, Korea
| | - JuHee Lee
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea
| | - Yeonsoo Jang
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea
| | - Jeongmin Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Ah Shin
- Department of Neurosurgery, Spine and Spinal Cord Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hyunki Park
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea
| | - Bon-Nyeo Koo
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyangkyu Lee
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea.
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Xia J, Wang L, Zhang N, Xu H. Association between delirium and statin use in patients with congestive heart failure: a retrospective propensity score-weighted analysis. Front Aging Neurosci 2023; 15:1184298. [PMID: 37409005 PMCID: PMC10318247 DOI: 10.3389/fnagi.2023.1184298] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/31/2023] [Indexed: 07/07/2023] Open
Abstract
Background The relationship between statin use and delirium remains controversial; therefore, we aimed to study the association between statin exposure and delirium and in-hospital mortality in patients with congestive heart failure. Methods In this retrospective study, patients with congestive heart failure were identified from the Medical Information Mart for Intensive Care database. The primary exposure variable was statin use 3 days after admission to the intensive care unit, and the primary outcome measure was the presence of delirium. The secondary outcome measure was in-hospital mortality. Since the cohort study was retrospective, we used inverse probability weighting derived from the propensity score to balance various variables. Results Of 8,396 patients, 5,446 (65%) were statin users. Before matching, the prevalence of delirium was 12.5% and that of in-hospital mortality was 11.8% in patients with congestive heart failure. Statin use was significantly negatively correlated with delirium, with an odds ratio of 0.76 (95% confidence interval: [0.66-0.87]; P < 0.001) in the inverse probability weighting cohort and in-hospital mortality of 0.66 (95% confidence interval: [0.58-0.75]; P < 0.001). Conclusion Statins administered in the intensive care unit can significantly reduce the incidence of delirium and in-hospital mortality in patients with congestive heart failure.
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Affiliation(s)
- Jiangling Xia
- Department of Anesthesiology, Zibo Central Hospital, Zibo, Shandong, China
| | - Leilei Wang
- School of Architecture and Engineering, Zibo Vocational Institute, Zibo, Shandong, China
| | - Nannan Zhang
- Department of Anesthesiology, Affiliated Hospital of Qingdao University Medical College, Qingdao, Shandong, China
| | - Hongyu Xu
- Department of Anesthesiology, Zibo Central Hospital, Zibo, Shandong, China
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Qiao H, Chen J, Huang Y, Pan Y, Lu W, Huang Y, Li W, Shen X. Early Neurocognitive Function With Propofol or Desflurane Anesthesia After Laser Laryngeal Surgery With Low Inspired Oxygen. Laryngoscope 2023; 133:640-646. [PMID: 35791905 DOI: 10.1002/lary.30273] [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: 03/30/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/07/2022]
Abstract
PURPOSE The effects of general anesthetics on cognitive impairment are unclear and complicated. Laser laryngeal surgery (LLS) requires the administration of low levels of oxygen, which may increase the risk of desaturation and brain function impairment. This prospective randomized trial aimed to compare the effects of desflurane and propofol-based general anesthesia on the occurrence of early postoperative cognitive decline in elderly patients undergoing LLS. METHODS Seventy-three patients classified as American Society of Anesthesiologists grade I or II and at least 65 years of age were randomly allocated to receive either desflurane-based (Group D) or propofol-based (Group P) anesthesia during LLS. The standard anesthesia protocol was performed, with a bispectral index between 40 and 60 and a mean arterial pressure within 20% of baseline values. Intraoperative regional oxygen saturation values were recorded. Each patient was assessed using the mini-mental state examination (MMSE) test during the preoperative period (baseline), 30 min after extubation in the postanesthesia care unit, and 1, 3, and 24 h after surgery. RESULTS MMSE scores improved slightly in both groups compared to baseline during the early postoperative period, but these increases were not statistically significant. No significant differences were identified in MMSE scores between groups. Only three patients (9.6%) in group D and one patient (3.1%) in group P developed cognitive impairment (p = 0.583). CONCLUSION Low intraoperative inspired oxygen concentration during short-duration LLS did not reduce early postoperative cognitive function in elderly patients. Desflurane or propofol-based anesthesia had similar effects on early neurocognition after LLS. LEVEL OF EVIDENCE 2 Laryngoscope, 133:640-646, 2023.
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Affiliation(s)
- Hui Qiao
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Jing Chen
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Yanzhe Huang
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Yiting Pan
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Weisha Lu
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Youyi Huang
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Wenxian Li
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Xia Shen
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, Shanghai, China
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Gold C, Ray E, Christianson D, Park B, Kournoutas IA, Kahn TA, Perez EA, Berger JI, Sander K, Igram CA, Pugely A, Olinger CR, Carnahan R, Chen PF, Mueller R, Hitchon P, Howard MA, Banks M, Sanders RD, Woodroffe RW. Risk factors for delirium in elderly patients after lumbar spinal fusion. Clin Neurol Neurosurg 2022; 219:107318. [PMID: 35750022 DOI: 10.1016/j.clineuro.2022.107318] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/27/2022] [Accepted: 05/30/2022] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To identify perioperative risk factors for postoperative delirium (POD) in patients aged 65 or older undergoing lumbar spinal fusion procedures. PATIENTS AND METHODS A retrospective cohort analysis was performed on patients undergoing lumbar spinal fusion over an approximately three-year period at a single institution. Demographic and perioperative data were obtained from electronic medical records. The primary outcome was the presence of postoperative delirium assayed by the Delirium Observation Screening Scale (DOSS) and Confusion Assessment Method for the ICU (CAM-ICU). Univariate and multivariate analyses were performed on the data. RESULTS Of the 702 patients included in the study, 173 (24.6%) developed POD. Our analysis revealed that older age (p < 0.001), lower preoperative hemoglobin (p < 0.001), and higher ASA status (p < 0.001), were significant preoperative risk factors for developing POD. The only significant intraoperative risk factor was a higher number of spinal levels that were instrumented (p < 0.001). Higher pain scores on postoperative day 1 (p < 0.001), and lower postoperative hemoglobin (p < 0.001) were associated with increased POD; as were ICU admission (p < 0.001) and increased length of ICU stay (p < 0.001). Patients who developed POD had a longer hospital stay (p < 0.001) with lower rates of discharge to home as opposed to an inpatient facility (p < 0.001). CONCLUSION Risk factors for POD in older adults undergoing lumbar spinal fusion surgery include advanced age, diabetes, lower preoperative and postoperative hemoglobin, higher ASA grade, greater extent of surgery, and higher postoperative pain scores. Patients with delirium had a higher incidence of postoperative ICU admission, increased length of stay, decreased likelihood of discharge to home and increased mortality, all consistent with prior studies. Further studies may determine whether adequate management of anemia and pain lead to a reduction in the incidence of postoperative delirium in these patients.
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Affiliation(s)
- Colin Gold
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
| | - Emanuel Ray
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - David Christianson
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Brian Park
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | | | - Taimur A Kahn
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Eli A Perez
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Joel I Berger
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Katie Sander
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Cassim A Igram
- Department of Orthopedic Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Andrew Pugely
- Department of Orthopedic Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Catherine R Olinger
- Department of Orthopedic Surgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Ryan Carnahan
- Department of Epidemiology, University of Iowa, Iowa City, IA, USA
| | - Pei-Fu Chen
- Department of Anesthesiology, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Rashmi Mueller
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA; Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Patrick Hitchon
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Matthew A Howard
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Matthew Banks
- Department of Anesthesiology University of Wisconsin, Madison, WI, USA
| | - Robert D Sanders
- Specialty of Anaesthetics, University of Sydney, Sydney, Australia; Department of Anaesthetics & Institute of Academic Surgery, Royal Prince Alfred Hospital, Australia
| | - Royce W Woodroffe
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, IA, USA
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He KQ, Wang S, Zhang W, Liu Q, Chai XQ. What is the impact of perioperative cerebral oxygen desaturation on postoperative delirium in old population: a systemic review and meta-analysis. Aging Clin Exp Res 2022; 34:1761-1770. [PMID: 35575947 DOI: 10.1007/s40520-022-02128-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 01/23/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Perioperative cerebral oxygen saturation (ScO2) has been reported to associate with postoperative delirium (POD) which is a common postoperative complication, however, the results were inconclusive. Therefore, we aimed to conduct an up-to-date review and meta-analyze the relationship between perioperative ScO2 and POD. METHODS We systematically searched PubMed, Embase and Web of science through January 13, 2022. The pooled results were estimated through a random-effects model meta-analysis and expressed as odds ratios (ORs) and standard mean differences (SMDs), accompanied with 95% confident intervals (CIs). RESULTS Finally, of 467 searched articles, ten articles were included. A total of six studies reported the baseline ScO2 value and the pooled result showed that preoperative baseline ScO2 was lower in POD groups (SMD = - 0.41, 95% CI - 0.64 to - 0.18). And beyond that, the pooled OR across four literatures about preoperative low ScO2 on POD was 3.44 (95% CI 1.69, 7.02). In contrast, insignificant differences were detected in baseline/lowest ScO2 value during intraoperative and postoperative period. Additionally, there were no statistically significant associations for intraoperative and postoperative low ScO2 effect on POD risk. Meta-regress analysis has found no significant impact factors. CONCLUSIONS Based on current evidence, POD patients have a lower ScO2, and ScO2 desaturation may increase POD incidence, indicating the role of ScO2 underlying pathological mechanisms. For generalizability of evidence, we should rely on high-quality, considering more comprehensively longitudinal, interdisciplinary studies.
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Affiliation(s)
- Ke-Qiang He
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China.,Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine , University of Science and Technology of China, Hefei, 230001, China
| | - Sheng Wang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Wei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Qiang Liu
- Institute on Aging and Brain Disorders, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine , University of Science and Technology of China, Hefei, 230001, China.
| | - Xiao-Qing Chai
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China.
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Mokhtari M, Amirdosara M, Goharani R, Zangi M, Tafrishinejad A, Nashibi M, Dabbagh A, Sadeghi H, Nateghinia S, Hajiesmaeili M, Yousefi-Banaem H, Sayehmiri F. The Predictive Power of Near-Infrared Spectroscopy in Improving Cognitive Problems in Patients Undergoing Brain Surgeries: A Systematic Review. Anesth Pain Med 2022; 12:e116637. [PMID: 35433374 PMCID: PMC8995777 DOI: 10.5812/aapm.116637] [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: 06/12/2021] [Revised: 12/17/2021] [Accepted: 01/07/2022] [Indexed: 12/03/2022] Open
Abstract
One of the main objectives in neurosurgical procedures is the prevention of cerebral ischemia and hypoxia leading to secondary brain injury. Different methods for early detection of intraoperative cerebral ischemia and hypoxia have been used. Near-infrared spectroscopy (NIRS) is a simple, non-invasive method for monitoring cerebral oxygenation increasingly used today. The aim of this study was to systematically review the brain monitoring with NIRS in neurosurgery. The search process resulted in the detection of 324 articles using valid keywords on the electronic databases, including Embase, PubMed, Scopus, Web of Science, and Cochrane Library. Subsequently, the full texts of 34 studies were reviewed, and finally 11 articles (seven prospective studies, three retrospective studies, and one randomized controlled trial) published from 2005 to 2020 were identified as eligible for systematic review. Meta-analysis was not possible due to high heterogeneity in neurological and neurosurgical conditions of patients, expression of different clinical outcomes, and different standard reference tests in the studies reviewed. The results showed that NIRS is a non-invasive cerebral oximetry that provides continuous and measurable cerebral oxygenation information and can be used in a variety of clinical settings.
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Affiliation(s)
- Majid Mokhtari
- Department of Internal Medicine, Pulmonary and Critical Medicine, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Amirdosara
- Anesthesiology Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Goharani
- Department of Anesthesiology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Masood Zangi
- Anesthesiology Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Tafrishinejad
- Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Nashibi
- Fellowship of Neuroanesthesia, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Dabbagh
- Fellowship in Cardiac Anesthesiology, Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Sadeghi
- Anesthesiology Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeedeh Nateghinia
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Hajiesmaeili
- Critical Care Quality Improvement Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Corresponding Author: Critical Care Quality Improvement Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Hossein Yousefi-Banaem
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sayehmiri
- Student Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bernholm KF, Meyhoff CS, Bickler P. Association between tissue oxygenation and myocardial injury in patients undergoing major spine surgery: a prospective cohort study. BMJ Open 2021; 11:e044342. [PMID: 34535471 PMCID: PMC8451303 DOI: 10.1136/bmjopen-2020-044342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To describe the association between intraoperative tissue oxygenation and postoperative troponin elevation in patients undergoing major spine surgery. We hypothesised that a decrease in intraoperative skeletal muscle tissue oxygenation (SmO2) was associated with the peak postoperative cardiac troponin value. DESIGN This is a prospective cohort study. SETTING Single-centre, University of California San Francisco Medical Center. PARTICIPANTS Seventy adult patients undergoing major elective spine surgery. PRIMARY AND SECONDARY OUTCOME MEASURES High-sensitivity troponin T (hsTnT) was measured in plasma preoperatively and on the first and second day after surgery to assess the primary outcome of peak postoperative hsTnT. Secondary outcomes included MINS and intensive care unit (ICU) admission within 30 days. Skeletal cerebral tissue oxygenation and SmO2 was measured continuously with near-infrared spectroscopy during surgery. The primary exposure variable was time-weighted area under the curve (TW AUC) for SmO2. RESULTS Mean age was 65 (33-85) years and 59% were female. No significant association was found between TW AUC for SmO2 and peak hsTnT (Spearman's correlation, rs=0.17, p=0.16). A total of 28 (40%) patients had MINS. ICU admission occurred in 14 (40%) in lower vs 25 (71%) in upper half of patients based on TW AUC for SmO2, p=0.008. CONCLUSIONS Decrease in SmO2 was not a statistically significant predictor for peak troponin value following major spine surgery but is a potential predictor for other postoperative complications. TRIAL REGISTRATION NUMBER NCT03518372.
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Affiliation(s)
- Katrine Feldballe Bernholm
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
- Department of Anaesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Christian S Meyhoff
- Department of Anaesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
- Copenhagen Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Philip Bickler
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
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Kose G, Şirin K, Inel MB, Mertoglu S, Aksakal R, Kurucu Ş. Prevalence and Factors Affecting Postoperative Delirium in a Neurosurgical Intensive Care Unit. J Neurosci Nurs 2021; 53:177-182. [PMID: 34116558 DOI: 10.1097/jnn.0000000000000595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT PURPOSE: The aim of this study was to identify the prevalence of, and factors affecting, postoperative delirium (POD) in patients in the neurosurgical intensive care unit. METHODS: A cross-sectional study of 127 Turkish neurosurgical intensive care unit patients admitted between May 2018 and May 2019 was conducted. Patients were assessed for the development of POD using the Intensive Care Delirium Screening Checklist. We collected other independent data variables daily. Data were analyzed using independent sample t test, χ2 test, and logistic regression. RESULTS: The prevalence rates of POD on the first and second postoperative days were 18.9% and 8.7%, respectively. Logistic regression analysis showed that the Glasgow Coma Scale score, albumin level, Spo2 level, hemoglobin values, undergoing cranial surgery, and having intra-arterial catheter were the independent risk factors for POD. CONCLUSION: These findings may contribute to identifying patients at risk for developing POD and developing strategies to improve patient outcomes.
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Baek W, Kim YM, Lee H. Risk Factors of Postoperative Delirium in Older Adult Spine Surgery Patients: A Meta-Analysis. AORN J 2021; 112:650-661. [PMID: 33252809 DOI: 10.1002/aorn.13252] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/21/2020] [Accepted: 05/05/2020] [Indexed: 12/19/2022]
Abstract
This literature review identifies factors that may place older adult patients at risk for developing delirium after spine surgery. We conducted a meta-analysis according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Using a variety of electronic databases, we identified five studies for inclusion that represent 645 patients who were 65 years or older. The pooled incidence rate of postoperative delirium was 13.0%. Factors associated with developing postoperative delirium included preoperative opioid use, cervical spine surgery versus lumbar or thoracic spine surgery, spine fusion versus simple spine surgery, hypertension, cerebrovascular disease, pulmonary disease, duration of surgery, and infused IV fluid volume. Nurses who provide perioperative care for older adult patients undergoing spine surgery should be aware of the potential risk factors of delirium to ensure patient safety. Further research is required to clearly delineate the risk factors for postoperative delirium in older adults.
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Investigating Association between Intraoperative Hypotension and Postoperative Neurocognitive Disorders in Non-Cardiac Surgery: A Comprehensive Review. J Clin Med 2020; 9:jcm9103183. [PMID: 33008109 PMCID: PMC7601108 DOI: 10.3390/jcm9103183] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 12/19/2022] Open
Abstract
Postoperative delirium (POD) and postoperative cognitive decline (deficit) (POCD) are related to a higher risk of postoperative complications and long-term disability. Pathophysiology of POD and POCD is complex, elusive and multifactorial. Intraoperative hypotension (IOH) constitutes a frequent and vital health hazard in the perioperative period. Unfortunately, there are no international recommendations in terms of diagnostics and treatment of neurocognitive complications which may arise from hypotension-related hypoperfusion. Therefore, we performed a comprehensive review of the literature evaluating the association between IOH and POD/POCD in the non-cardiac setting. We have concluded that available data are quite inconsistent and there is a paucity of high-quality evidence convincing that IOH is a risk factor for POD/POCD development. Considerable heterogeneity between studies is the major limitation to set up reliable recommendations regarding intraoperative blood pressure management to protect the brain against hypotension-related hypoperfusion. Further well-designed and effectively-performed research is needed to elucidate true impact of intraoperative blood pressure variations on postoperative cognitive functioning.
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Risk factors for postoperative delirium after spinal surgery: a systematic review and meta-analysis. Aging Clin Exp Res 2020; 32:1417-1434. [PMID: 31471892 DOI: 10.1007/s40520-019-01319-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/13/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Postoperative delirium is common in older patients after spinal surgery. Many reports investigating the risk factors for delirium after spinal surgery have been published recently. METHODS A literature search was performed using the Cochrane Library, Web of Science, PubMed, Embase, and Springer databases from inception to February 2019. Relevant studies involving patients with delirium who underwent spinal surgery were included if the studies contained data about blood transfusion or other related factors, such as haemoglobin, haematocrit, and blood loss levels. The Newcastle-Ottawa Scale was used for the study-quality evaluation. The pooled odds ratios or (standard) mean differences of the individual risk factors were estimated using the Mantel-Haenszel or inverse-variance methods. RESULTS Fifteen observational studies met the inclusion criteria; the studies included a total of 583,290 patients (5431 patients with delirium and 577,859 patients without delirium). In addition to an advanced age, the results of the meta-analyses showed that living in an institution, diabetes, cerebral vascular diseases, pulmonary diseases, opioid use, length of surgery, intraoperative blood loss, blood transfusions, intraoperative infusion, preoperative albumin, postoperative albumin, preoperative haematocrit, postoperative haematocrit, preoperative haemoglobin, postoperative haemoglobin, preoperative sodium, postoperative sodium, Mini-Mental State Examination score, inability to ambulate, depression, number of medications, and treatment with multiple drugs (> three types) were significantly associated with delirium. CONCLUSION The above-mentioned risk factors can be used to identify high-risk patients, and the appropriate prophylaxis strategies should be implemented to prevent delirium after spinal surgery.
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Xu X, Hu X, Wu Y, Li Y, Zhang Y, Zhang M, Yang Q. Effects of different BP management strategies on postoperative delirium in elderly patients undergoing hip replacement: A single center randomized controlled trial. J Clin Anesth 2020; 62:109730. [DOI: 10.1016/j.jclinane.2020.109730] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 12/17/2019] [Accepted: 01/18/2020] [Indexed: 12/19/2022]
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Gao H, Ma HJ, Li YJ, Yin C, Li Z. Prevalence and risk factors of postoperative delirium after spinal surgery: a meta-analysis. J Orthop Surg Res 2020; 15:138. [PMID: 32272939 PMCID: PMC7146882 DOI: 10.1186/s13018-020-01651-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/27/2020] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Postoperative delirium (POD) was common after spinal surgery, but the main findings in previous studies remained conflicting. This current meta-analysis was aimed at exploring the prevalence and risk factors of POD after spinal surgery. METHODS PubMed and Embase were searched from inception to June 2019. Studies which reported the prevalence and risk factors of POD after spinal surgery were included. STATA version 12.0 was employed to analyze the pooled data. Statistical heterogeneity across included studies was identified using the I2 statistics. RESULTS A total of 28 studies with 588,732 patients were included in the meta-analysis. The pooled prevalence of POD after spinal surgery was 0.85% (95%CI, 0.83-0.88%) with substantial heterogeneity (I2 = 97.3%). The central nervous system disorder (OR 4.73; 95%CI, 4.30-5.19) was a strong predictor for POD, whereas age (OR 1.16; 95%CI, 1.05-2.47; I2 = 99.2%) and blood loss (OR 1.10; 95%CI, 1.01-1.20; I2 = 93.3%) were weaker predictors. The funnel plot and statistical tests suggested that there existed potential publication bias, but the trim and fill method indicated that the pooled prevalence basically kept stable after adding two "missing" studies. CONCLUSIONS The pooled POD after spinal surgery ranges from 0.83 to 0.88%. The central nervous system disorder, age, and blood loss were potential risk factors for POD.
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Affiliation(s)
- Hua Gao
- Department of Outpatient, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, 730030, China.
| | - Hui-Juan Ma
- Operating Theater, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, 730030, China
| | - Ying-Jia Li
- Operating Theater, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, 730030, China
| | - Ci Yin
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, 730030, China
| | - Zheng Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, 730030, China
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Müller J, Nowak S, Vogelgesang A, von Sarnowski B, Rathmann E, Schmidt S, Rehberg S, Usichenko T, Kertscho H, Hahnenkamp K, Flöel A, Schroeder HW, Müller JU, Fleischmann R. Evaluating Mechanisms of Postoperative Delirium and Cognitive Dysfunction Following Elective Spine Surgery in Elderly Patients (CONFESS): Protocol for a Prospective Observational Trial. JMIR Res Protoc 2020; 9:e15488. [PMID: 32053113 PMCID: PMC7048391 DOI: 10.2196/15488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/12/2019] [Accepted: 10/29/2019] [Indexed: 12/12/2022] Open
Abstract
Background Elderly people are at particular high risk for postoperative delirium (POD) following spine surgery, which is associated with longer hospital stays, higher costs, risk for delayed complications, long-term care dependency, and cognitive dysfunction (POCD). It is insufficiently understood which mechanisms and risk factors contribute to the development of POD and POCD following these major but plannable surgeries. Objective This study aims to identify modifiable risk factors in spine surgery. A better understanding thereof would help adapt medical management and surgical strategies to individual risk profiles. Methods This is a single-center observational study jointly conducted by the departments of neurosurgery, neurology, and anesthesiology at a tertiary care hospital in Germany. All patients aged 60 years and older presenting to the neurosurgery outpatient clinic or ward for elective spine surgery are screened for eligibility. Exclusion criteria include presence of neurodegenerative or history of psychiatric disease and medication with significant central nervous system activity (eg, antidepressants, antipsychotics, sedatives). Surgical and anesthetic procedures including duration of surgery as primary end point of this study are thoroughly documented. All patients are furthermore evaluated for their preoperative cognitive abilities by a number of tests, including the Consortium to Establish a Registry for Alzheimer's Disease Plus test battery. Physical, mental, and social health and well-being are assessed using the Patient-Reported Outcome Measurement Information System Profile 29 and Hospital Anxiety and Depression Scale. Patients additionally receive preoperative cerebrovascular ultrasound and structural and functional brain imaging. The immediate postoperative period includes screening for POD using the Nursing Delirium Screening Scale and validation through Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, criteria. We furthermore investigate markers of (neuro)inflammation (eg, interleukins, C-reactive protein, tumor necrosis factor alpha). Preoperative examinations are repeated 3 months postoperatively to investigate the presence of POCD and its mechanisms. Statistical analyses will compare delirious and nondelirious patients for predictors of immediate (POD) and delayed (POCD) cognitive dysfunction. Results This is the first study to prospectively evaluate risk factors for POD and POCD in spine surgery. Recruitment is ongoing, and data collection is estimated to be finished with the inclusion of 200 patients by mid-2020. Conclusions The identification of mechanisms, possibly common, underlying POD and POCD would be a major step toward defining effective interventional strategies early in or even before the postoperative period, including the adaptation of surgical strategies to individual risk profiles. Trial Registration ClinicalTrials.gov NCT03486288; https://clinicaltrials.gov/ct2/show/NCT03486288
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Affiliation(s)
- Jonas Müller
- Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
| | - Stephan Nowak
- Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
| | - Antje Vogelgesang
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany
| | | | - Eiko Rathmann
- Department of Radiology, University Medicine Greifswald, Greifswald, Germany
| | - Sein Schmidt
- Clinical Research Unit, Charité Campus Mitte, Berlin Institute of Health, Berlin, Germany
| | - Sebastian Rehberg
- Department of Anesthesiology, Protestant Hospital of the Bethel Foundation, Bielefeld, Germany
| | - Taras Usichenko
- Department of Anesthesiology, University Medicine Greifswald, Greifswald, Germany
| | - Harry Kertscho
- Department of Anesthesiology, University Medicine Greifswald, Greifswald, Germany
| | - Klaus Hahnenkamp
- Department of Anesthesiology, University Medicine Greifswald, Greifswald, Germany
| | - Agnes Flöel
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany.,Center for Neurodegenerative Diseases, Greifswald/Rostock, Germany
| | - Henry Ws Schroeder
- Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
| | - Jan-Uwe Müller
- Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
| | - Robert Fleischmann
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany
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Incidence and Risk Factors for Postoperative Delirium in Patients Undergoing Spine Surgery: A Systematic Review and Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2019; 2019:2139834. [PMID: 31886180 PMCID: PMC6899276 DOI: 10.1155/2019/2139834] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022]
Abstract
Background The present study aims to investigate the incidence and risk factors associated with postoperative delirium in patients undergoing spine surgery. Methods PubMed, EMBASE, Cochrane Library, and Science Citation Index were searched up to August 2019 for studies examining postoperative delirium following spine surgery. Incidence and risk factors associated with delirium were extracted. Odds ratios (OR) and 95% confidence intervals (CI) were calculated for outcomes. The Newcastle-Ottawa Scale (NOS) was used for the study quality evaluation. Results The final analysis includes a total of 40 studies. The pooled analysis reveals that incidence of delirium is 8%, and there are significant differences for developing delirium in age (OR 1.07; 95% CI 1.04-1.09), age more than 65 (OR 4.77; 95% CI 4.37-5.16), age more than 70 (OR 15.87; 95% CI 6.03-41.73), and age more than 80 (OR 1.91; 95% CI 1.78-2.03) years, male (OR 0.81; 95% CI 0.76-0.86), a history of alcohol abuse (OR 2.11; 95% CI 1.67-2.56), anxiety (OR 1.74; 95% CI 1.04-2.44), congestive heart failure (OR 1.4; 95% CI 1.21-1.6), depression (OR 2.5; 95% CI 1.52-3.49), hypertension (OR 1.12; 95% CI 1.04-1.2), kidney disease (OR 1.41; 95% CI 1.16-1.66), neurological disorder (OR 4.66; 95% CI 4.22-5.11), opioid use (OR 1.86; 95% CI 1.18-2.54), psychoses (OR 2.77; 95% CI 2.29-3.25), pulmonary disease (OR 1.81; 95% CI 1.27-2.35), higher mini-mental state examination (OR 0.7; 95% CI 0.5-0.89), preoperative pain (OR 1.88; 95% CI 1.11-2.64), and postoperative urinary tract infection (OR 5.68; 95% CI 2.41-13.39). Conclusions A comprehensive understanding of incidence and risk factors of delirium can improve prevention, diagnosis, and management. Risk of postoperative delirium can be reduced based upon identifiable risk factors.
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Murniece S, Soehle M, Vanags I, Mamaja B. Near Infrared Spectroscopy Based Clinical Algorithm Applicability During Spinal Neurosurgery and Postoperative Cognitive Disturbances. ACTA ACUST UNITED AC 2019; 55:medicina55050179. [PMID: 31117234 PMCID: PMC6572416 DOI: 10.3390/medicina55050179] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/10/2019] [Accepted: 05/14/2019] [Indexed: 01/12/2023]
Abstract
Background and Objectives: Postoperative cognitive disturbances (POCD) can significantly alter postoperative recovery. Inadequate intraoperative cerebral oxygen supply is one of the inciting causes of POCD. Near-infrared spectroscopy (NIRS) devices monitor cerebral oxygen saturation continuously and can help to guide intraoperative patient management. The aim of the study was to evaluate the applicability of the NIRS-based clinical algorithm during spinal neurosurgery and to find out whether it can influence postoperative cognitive performance. Materials and Methods: Thirty four patients scheduled for spinal neurosurgery were randomized into a study group (n = 23) and a control group (n = 11). We monitored regional cerebral oxygen saturation (rScO2) throughout surgery, using a NIRS device (INVOS 4100). If rScO2 dropped bilaterally or unilaterally by more than 20% from baseline values, or under an absolute value of 50%, the NIRS-based algorithm was initiated in the study group. In the control group, rScO2 was monitored blindly. To evaluate cognitive function, Montreal-Cognitive Assessment (MoCA) scale was used in both groups before and after the surgery. Results: In the study group, rScO2 dropped below the threshold in three patients and the NIRS-based algorithm was activated. Firstly, we verified correct positioning of the head; secondly, we increased mean systemic arterial pressure in the three patients by injecting repeated intravenous bolus doses of Ephedrine, ultimately resulting in an rScO2 increase above the approved threshold level. None of the three patients showed POCD. In the control group, one patient showed a drop in rScO2 of 34% from baseline and presented with a POCD. RScO2 drop occurred with other stable intraoperative measurements. Conclusions: A significant rScO2 drop may occur during spinal surgery in prone position despite other intraoperative measurements remaining stable, allowing it to stay otherwise unrecognized. Use of the NIRS-based clinical algorithm can help to avoid POCD in patients after spinal surgery.
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Affiliation(s)
- Sniedze Murniece
- Department of Anesthesiology, Riga East Clinical University Hospital, Hipokrata Street 2, LV1038 Riga, Latvia.
- Department of doctoral studies, Riga Stradins University, Dzirciema Street 16, LV1007 Riga, Latvia.
| | - Martin Soehle
- Department of Anesthesiology, University Hospital of Bonn, Sigmund-Freud Str.25, 53105 Bonn, Germany.
| | - Indulis Vanags
- Department of doctoral studies, Riga Stradins University, Dzirciema Street 16, LV1007 Riga, Latvia.
- Department of Anesthesiology, Paul Stradins Clinical University Hospital, Pilsonu Street 13, LV1002 Riga, Latvia.
| | - Biruta Mamaja
- Department of Anesthesiology, Riga East Clinical University Hospital, Hipokrata Street 2, LV1038 Riga, Latvia.
- Department of doctoral studies, Riga Stradins University, Dzirciema Street 16, LV1007 Riga, Latvia.
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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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Morino T, Hino M, Yamaoka S, Misaki H, Ogata T, Imai H, Miura H. Risk Factors for Delirium after Spine Surgery: An Age-Matched Analysis. Asian Spine J 2018; 12:703-709. [PMID: 30060380 PMCID: PMC6068405 DOI: 10.31616/asj.2018.12.4.703] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/17/2017] [Indexed: 11/23/2022] Open
Abstract
STUDY DESIGN A retrospective cohort study. PURPOSE To investigate the risk factors for postoperative delirium after spine surgery, excluding older age, which has already been established as a strong risk factor. OVERVIEW OF LITERATURE More than 30 risk factors have been reported for delirium after spine surgery, making it challenging to identify which factors should be prioritized. We hypothesized that risk factors could not be prioritized to date because the factor of older age is very strong and influenced other factors. To eliminate the influence of older age, we performed an age-matched group comparison analysis for the investigation of other risk factors. METHODS This study involved 532 patients who underwent spine surgery. Two patients of the same age without delirium (delirium negative group) were matched to each patient with delirium (delirium positive group). Differences in suspected risk factors for postoperative delirium between the two groups identified from previous reports were analyzed using univariate analysis. Multivariate analysis was performed for factors that showed a significant difference between the two groups in the univariate analysis. RESULTS Fifty-nine (11.1%) of 532 patients developed postoperative delirium after spine surgery. Large amounts of intraoperative bleeding, low preoperative concentration of serum Na, high postoperative (day after surgery) serum level of C-reactive protein, low hematocrit level, low concentration of albumin, and high body temperature were detected as significant risk factors in the univariate analysis. Large amounts of intraoperative bleeding remained a risk factor for postoperative delirium in the multivariate analysis. CONCLUSIONS We should pay attention to and take precautions against the occurrence of postoperative delirium after spine surgery in patients of older age or those who experience severe intraoperative bleeding.
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Affiliation(s)
- Tadao Morino
- Spine Center, Ehime University School of Medicine, Ehime, Japan
| | - Masayuki Hino
- Spine Center, Ehime University School of Medicine, Ehime, Japan
| | | | - Hiroshi Misaki
- Spine Center, Ehime University School of Medicine, Ehime, Japan
| | - Tadanori Ogata
- Spine Center, Ehime University School of Medicine, Ehime, Japan
| | - Hiroshi Imai
- Department of Orthopedic Surgery, Ehime University School of Medicine, Ehime, Japan
| | - Hiromasa Miura
- Department of Orthopedic Surgery, Ehime University School of Medicine, Ehime, Japan
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Grocott HP. Prone Position, Cerebral Oximetry, and Delirium. J Neurosurg Anesthesiol 2018; 30:189. [PMID: 29319558 DOI: 10.1097/ana.0000000000000484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Hilary P Grocott
- Department of Anesthesia, University of Manitoba, Winnipeg, MB, Canada
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