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Abstract
Delirium is the most common acute disorder of cognitive function in older patients. Delirium is life threatening, often under-recognized, serious, and costly. The causes are multifactorial, with old age and neurocognitive disorders as the main risk factors. Etiologies are various and multifactorial, and often related to acute medical illness, adverse drug reactions, or medical complications. To date, diagnosis is clinically based, depending on the presence or absence of certain features. In view of the multifactorial etiology, multicomponent approaches seem most promising for facing patients’ needs. Pharmacological intervention, neither for prevention nor for treatment, has been proven effective unanimously. This article reviews the current clinical practice for delirium in geriatric patients, including etiology, pathophysiology, diagnosis, prognosis, treatment, prevention, and outcomes.
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Cholinergic blockade of neuroinflammation – from tissue to RNA regulators. Neuronal Signal 2022; 6:NS20210035. [PMID: 35211331 PMCID: PMC8837817 DOI: 10.1042/ns20210035] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/06/2022] [Accepted: 01/06/2022] [Indexed: 11/17/2022] Open
Abstract
Inflammatory stimuli and consequent pro-inflammatory immune responses may facilitate neurodegeneration and threaten survival following pathogen infection or trauma, but potential controllers preventing these risks are incompletely understood. Here, we argue that small RNA regulators of acetylcholine (ACh) signaling, including microRNAs (miRs) and transfer RNA fragments (tRFs) may tilt the balance between innate and adaptive immunity, avoid chronic inflammation and prevent the neuroinflammation-mediated exacerbation of many neurological diseases. While the restrictive permeability of the blood–brain barrier (BBB) protects the brain from peripheral immune events, this barrier can be disrupted by inflammation and is weakened with age. The consequently dysregulated balance between pro- and anti-inflammatory processes may modify the immune activities of brain microglia, astrocytes, perivascular macrophages, oligodendrocytes and dendritic cells, leading to neuronal damage. Notably, the vagus nerve mediates the peripheral cholinergic anti-inflammatory reflex and underlines the consistent control of body–brain inflammation by pro-inflammatory cytokines, which affect cholinergic functions; therefore, the disruption of this reflex can exacerbate cognitive impairments such as attention deficits and delirium. RNA regulators can contribute to re-balancing the cholinergic network and avoiding its chronic deterioration, and their activities may differ between men and women and/or wear off with age. This can lead to hypersensitivity of aged patients to inflammation and higher risks of neuroinflammation-driven cholinergic impairments such as delirium and dementia following COVID-19 infection. The age- and sex-driven differences in post-transcriptional RNA regulators of cholinergic elements may hence indicate new personalized therapeutic options for neuroinflammatory diseases.
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Oldham MA. Delirium disorder: Unity in diversity. Gen Hosp Psychiatry 2022; 74:32-38. [PMID: 34875568 DOI: 10.1016/j.genhosppsych.2021.11.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/28/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The first objective of this review is to explore the factors that have led to and maintain the division between delirium and acute encephalopathy. The second is to explore the value of harmonizing them through the model of delirium disorder. METHOD This narrative review outlines major distinctions between delirium and acute encephalopathy. It also compares them with the model of delirium disorder, which seeks not only to integrate them but also to offer a broader palette of treatment targets. RESULTS Delirium implies an underlying acute encephalopathy, whereas acute encephalopathy presents as a spectrum from subsyndromal delirium to coma. Key factors that differentiate these two models include tradition, nuances of the models themselves, linguistic connotations, evoked responses from clinicians, implications of preventability and responsibility, cultural perceptions of non-pharmacological vs pharmacological interventions and economic incentives. A validated set of pathophysiological subtypes may ultimately help link the delirium-spectrum phenotype with various acute encephalopathies. CONCLUSIONS Developing a coherent clinical and scientific approach to this set of conditions demands that we first develop a coherent understanding of the conditions themselves and how they relate to one another. Such an approach must embrace the tension between a convergent phenotype and its diverse biological underpinnings.
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Affiliation(s)
- Mark A Oldham
- University of Rochester Medical Center, Department of Psychiatry, 300 Crittenden Blvd, Box PSYCH, Rochester, NY 14642, United States of America.
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54
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Henstra MJ, Feenstra TC, Kok RM, Spaans HP, van Exel E, Dols A, Oudega M, Vergouwen ACM, van der Loo A, Bet PM, Loer SA, Eikelenboom M, Sienaert P, Lambrichts S, Bouckaert F, Bosmans JE, van der Velde N, Beekman ATF, Stek ML, Rhebergen D. Rivastigmine for ECT-induced cognitive adverse effects in late life depression (RECALL study): A multicenter, randomized, double blind, placebo-controlled, cross-over trial in patients with depression aged 55 years or older: Rationale, objectives and methods. Front Psychiatry 2022; 13:953686. [PMID: 35911242 PMCID: PMC9334653 DOI: 10.3389/fpsyt.2022.953686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Cognitive side-effects are an important reason for the limited use of electroconvulsive therapy (ECT). Cognitive side-effects are heterogeneous and occur frequently in older persons. To date, insight into these side-effects is hampered due to inconsistencies in study designs and small sample sizes. Among all cognitive side-effects, confusion and delirious states are especially troublesome for patients, relatives and clinicians. In particular inter-ictal delirium-like states are worrisome, since they may lead to premature treatment discontinuation. Besides a need for further insight into determinants of cognitive side-effects of ECT, there is a great need for treatment options. METHODS AND DESIGN The Rivastigmine for ECT-induced Cognitive Adverse effects in Late Life depression (RECALL) study combines a multicenter, prospective cohort study on older patients with depression, treated with ECT, with an embedded randomized, placebo-controlled cross-over trial to examine the effect of rivastigmine on inter-ictal delirium. Patients are recruited in four centers across the Netherlands and Belgium. We aim to include 150 patients into the cohort study, in order to be able to subsequently include 30 patients into the trial. Patients are included in the trial when inter-ictal delirium, assessed by the Confusion Assessment method (CAM), or a drop in Mini Mental State Examination (MMSE) score of ≥4 during ECT, develops. In the cohort study, comprehensive measurements of ECT-related cognitive side-effects-and their putative determinants-are done at baseline and during the ECT-course. The primary outcome of the clinical trial is the effectiveness of rivastigmine on inter-ictal delirium-severity, assessed with a change in the Delirium Rating Scale-Revised-98. Secondary outcomes of the clinical trial are several ECT-characteristics and side-effects of rivastigmine. DISCUSSION This study is the first clinical trial with a focus on ECT-induced, inter-ictal delirium. The cohort provides the basis for recruitment of patients for the cross-over trial and additionally provides an excellent opportunity to unravel cognitive side-effects of ECT and identify putative determinants. This paper describes the rationale and study protocol. CLINICAL TRIAL REGISTRATION EudraCT 2014-003385-24.
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Affiliation(s)
- Marieke J Henstra
- Department of Internal Medicine and Geriatrics, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, Netherlands.,Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, Netherlands.,Aging and Later Life Program, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Thomas C Feenstra
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ Centraal Mental Health Care, Amersfoort, Netherlands
| | - Rob M Kok
- Department of Old Age Psychiatry and ECT Center Haaglanden, Parnassia Psychiatric Institute, The Hague, Netherlands
| | - Harm-Pieter Spaans
- Department of Old Age Psychiatry and ECT Center Haaglanden, Parnassia Psychiatric Institute, The Hague, Netherlands
| | - Eric van Exel
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Neuroscience, Mood, Anxiety, Psychosis, Sleep and Stress Program, Amsterdam, Netherlands
| | - Annemiek Dols
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Neuroscience, Mood, Anxiety, Psychosis, Sleep and Stress Program, Amsterdam, Netherlands.,Amsterdam Neuroscience, Neurodegeneration Program, Amsterdam, Netherlands
| | - Mardien Oudega
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands.,Amsterdam Neuroscience, Mood, Anxiety, Psychosis, Sleep and Stress Program, Amsterdam, Netherlands
| | - Anton C M Vergouwen
- Department of Psychiatry and Medical Psychology, OLVG Hospital, Amsterdam, Netherlands
| | - Adriano van der Loo
- Department of Psychiatry and Medical Psychology, OLVG Hospital, Amsterdam, Netherlands
| | - Pierre M Bet
- Department of Clinical Pharmacology and Pharmacy, Amsterdam UMC location VUmc, Amsterdam, Netherlands
| | - Stephan A Loer
- Department of Anesthesiology, Amsterdam UMC location VUmc, Amsterdam, Netherlands
| | - Merijn Eikelenboom
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Pascal Sienaert
- Department of Neurosciences, University Psychiatric Center KU Leuven, Academic Center for ECT and Neuromodulation (AcCENT), KU Leuven, Leuven, Belgium
| | - Simon Lambrichts
- Department of Neurosciences, University Psychiatric Center KU Leuven, Academic Center for ECT and Neuromodulation (AcCENT), KU Leuven, Leuven, Belgium
| | - Filip Bouckaert
- Department of Geriatric Psychiatry, University Psychiatric Center KU Leuven, KU Leuven, Leuven, Belgium
| | - Judith E Bosmans
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Health Sciences, Faculty of Science, Vrije Universiteit, Amsterdam, Netherlands
| | - Nathalie van der Velde
- Department of Internal Medicine and Geriatrics, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, Netherlands.,Aging and Later Life Program, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Aartjan T F Beekman
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands.,Department of Psychiatry, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Max L Stek
- Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands
| | - Didi Rhebergen
- Amsterdam Public Health Research Institute, Mental Health Program, Amsterdam, Netherlands.,Department of Research, GGZ Centraal Mental Health Care, Amersfoort, Netherlands.,Department of Research, GGZ inGeest Mental Health Care, Amsterdam, Netherlands
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Citicoline and COVID-19-Related Cognitive and Other Neurologic Complications. Brain Sci 2021; 12:brainsci12010059. [PMID: 35053804 PMCID: PMC8782421 DOI: 10.3390/brainsci12010059] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023] Open
Abstract
With growing concerns about COVID-19’s hyperinflammatory condition and its potentially damaging impact on the neurovascular system, there is a need to consider potential treatment options for managing short- and long-term effects on neurological complications, especially cognitive function. While maintaining adequate structure and function of phospholipid in brain cells, citicoline, identical to the natural metabolite phospholipid phosphatidylcholine precursor, can contribute to a variety of neurological diseases and hypothetically toward post-COVID-19 cognitive effects. In this review, we comprehensively describe in detail the potential citicoline mechanisms as adjunctive therapy and prevention of COVID-19-related cognitive decline and other neurologic complications through citicoline properties of anti-inflammation, anti-viral, neuroprotection, neurorestorative, and acetylcholine neurotransmitter synthesis, and provide a recommendation for future clinical trials.
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56
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He J, Ling Q, Chen Y. Construction and Application of a Model for Predicting the Risk of Delirium in Postoperative Patients With Type a Aortic Dissection. Front Surg 2021; 8:772675. [PMID: 34869569 PMCID: PMC8636852 DOI: 10.3389/fsurg.2021.772675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/11/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Postoperative delirium (POD), an alteration in a patient's consciousness pattern, can affect the treatment and prognosis of a disease. Objective: To construct a prediction model for delirium in patients with type A aortic dissection after surgery and to validate its effectiveness. Methods: A retrospective cohort design was used to study 438 patients undergoing surgical treatment for type A aortic dissection from April 2019 to June 2020 in tertiary care hospitals. POD (n = 78) and non-delirium groups (n = 360) were compared and analyzed for each index in the perioperative period. A prediction model was established using multifactorial logistic regression, and 30 patients' perioperative data were collected for model validation. Results: Eight predictors were included in this study: smoking, diabetes, previous cardiovascular surgery, ejection fraction (EF), time to aortic block, acute kidney injury, low cardiac output syndrome, and pulmonary complications. The area under the receiver operating characteristic (ROC) curve of the constructed prediction model was 0.98 ± 0.005, and the Youden index was 0.91. The validation results showed 97% sensitivity, 100% specificity, and 93% accuracy. The expression of the model was Z = Smoking assignment* – 2.807 – 6.009*Diabetes assignment – 2.994*Previous cardiovascular surgery assignment – 0.129*Ejection fraction assignment + 0.071*Brain perfusion time assignment – 2.583*Acute kidney injury assignment – 2.916*Low cardiac output syndrome assignment – 3.461*Pulmonary related complications assignment + 20.576. Conclusion: The construction of an effective prediction model for the risk of delirium in patients after type A aortic stratification can help identify patients at high risk of POD early. It also provides a reference for healthcare professionals in the prevention and care of these patients.
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Affiliation(s)
- Junfeng He
- Department of Nursing, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qing Ling
- Department of Nursing, Nanjing First Hospital, Nanjing, China
| | - Yuhong Chen
- Department of Nursing, Nanjing First Hospital, Nanjing, China
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57
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Boord MS, Davis DHJ, Psaltis PJ, Coussens SW, Feuerriegel D, Garrido MI, Bourke A, Keage HAD. DelIrium VULnerability in GEriatrics (DIVULGE) study: a protocol for a prospective observational study of electroencephalogram associations with incident postoperative delirium. BMJ Neurol Open 2021; 3:e000199. [PMID: 34964043 PMCID: PMC8653776 DOI: 10.1136/bmjno-2021-000199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/07/2021] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Delirium is a neurocognitive disorder common in older adults in acute care settings. Those who develop delirium are at an increased risk of dementia, cognitive decline and death. Electroencephalography (EEG) during delirium in older adults is characterised by slowing and reduced functional connectivity, but markers of vulnerability are poorly described. We aim to identify EEG spectral power and event-related potential (ERP) markers of incident delirium in older adults to understand neural mechanisms of delirium vulnerability. Characterising delirium vulnerability will provide substantial theoretical advances and outcomes have the potential to be translated into delirium risk assessment tools. METHODS AND ANALYSIS We will record EEG in 90 participants over 65 years of age prior to elective coronary artery bypass grafting (CABG) or transcatheter aortic valve implantation (TAVI). We will record 4-minutes of resting state (eyes open and eyes closed) and a 5-minute frequency auditory oddball paradigm. Outcome measures will include frequency band power, 1/f offset and slope, and ERP amplitude measures. Participants will undergo cognitive and EEG testing before their elective procedures and daily postoperative delirium assessments. Group allocation will be done retrospectively by linking preoperative EEG data according to postoperative delirium status (presence, severity, duration and subtype). ETHICS AND DISSEMINATION This study is approved by the Human Research Ethics Committee of the Royal Adelaide Hospital, Central Adelaide Local Health Network and the University of South Australia Human Ethics Committee. Findings will be disseminated through peer-reviewed journal articles and presentations at national and international conferences. TRIAL REGISTRATION NUMBER ACTRN12618001114235 and ACTRN12618000799257.
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Affiliation(s)
- Monique S Boord
- Cognitive Ageing and Impairment Neurosciences Laboratory, Justice and Society, University of South Australia, Adelaide, South Australia, Australia
| | | | - Peter J Psaltis
- Vascular Research Centre, Heart and Vascular Program, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
- Department of Cardiology, Royal Adelaide Hospital, Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Scott W Coussens
- Cognitive Ageing and Impairment Neurosciences Laboratory, Justice and Society, University of South Australia, Adelaide, South Australia, Australia
| | - Daniel Feuerriegel
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Marta I Garrido
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Alice Bourke
- Aged Care, Rehabilitation and Palliative Care (Medical), Northern Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - Hannah A D Keage
- Cognitive Ageing and Impairment Neurosciences Laboratory, Justice and Society, University of South Australia, Adelaide, South Australia, Australia
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O’Gara BP, Gao L, Marcantonio ER, Subramaniam B. Sleep, Pain, and Cognition: Modifiable Targets for Optimal Perioperative Brain Health. Anesthesiology 2021; 135:1132-1152. [PMID: 34731233 PMCID: PMC8578455 DOI: 10.1097/aln.0000000000004046] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The prevention of perioperative neurocognitive disorders is a priority for patients, families, clinicians, and researchers. Given the multiple risk factors present throughout the perioperative period, a multicomponent preventative approach may be most effective. The objectives of this narrative review are to highlight the importance of sleep, pain, and cognition on the risk of perioperative neurocognitive disorders and to discuss the evidence behind interventions targeting these modifiable risk factors. Sleep disruption is associated with postoperative delirium, but the benefit of sleep-related interventions is uncertain. Pain is a risk factor for postoperative delirium, but its impact on other postoperative neurocognitive disorders is unknown. Multimodal analgesia and opioid avoidance are emerging as best practices, but data supporting their efficacy to prevent delirium are limited. Poor preoperative cognitive function is a strong predictor of postoperative neurocognitive disorder, and work is ongoing to determine whether it can be modified to prevent perioperative neurocognitive disorders.
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Affiliation(s)
- Brian P O’Gara
- Beth Israel Deaconess Medical Center. Department of Anesthesiology, Critical Care and Pain Medicine. Harvard Medical School. Boston, MA, USA
| | - Lei Gao
- Massachusetts General Hospital. Department of Anesthesia. Harvard Medical School. Boston, MA, USA
| | - Edward R Marcantonio
- Beth Israel Deaconess Medical Center. Department of Medicine. Harvard Medical School. Boston, MA, USA
| | - Balachundhar Subramaniam
- Beth Israel Deaconess Medical Center. Department of Anesthesiology, Critical Care and Pain Medicine. Harvard Medical School. Boston, MA, USA
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Tudor A, Vasile AI, Trifu SC, Cristea MB. Morphological classification and changes in dementia (Review). Exp Ther Med 2021; 23:33. [PMID: 34824641 DOI: 10.3892/etm.2021.10955] [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: 06/25/2021] [Accepted: 07/27/2021] [Indexed: 11/06/2022] Open
Abstract
The progressive functional decline that involves both cognitive and neuropsychiatric symptoms characteristic to dementia is one of the leading research topics. The risk for dementia is an intertwined mix between aging, genetic risk factors, and environmental influences. APOEε4, which is one of the apolipoprotein E (APOE) alleles, is the major genetic risk factor for late-onset of the most common form of dementia, Alzheimer's. Advances in machine learning have led to the development of artificial intelligence (AI) algorithms to help diagnose dementia by magnetic resonance imaging (MRI) in order to detect it in the preclinical stage. The basis of the determinations starts from the morphometry of cerebral atrophies. The present review focused on MRI techniques which are a leading tool in identifying cortical atrophy, white matter dysfunctionalities, cerebral vessel quality (as a factor for cognitive impairment) and metabolic asymmetries. In addition, a brief overview of Alzheimer's disease was presented and recent neuroimaging in the field of dementia with an emphasis on structural MR imaging and more powerful methods such as diffusion tensor imaging, quantitative susceptibility mapping, and magnetic transfer imaging were explored in order to propose a simple systematic approach for the diagnosis and treatment of dementia.
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Affiliation(s)
- Alexandra Tudor
- Department of Psychiatry, 'Prof. Dr. Alex. Obregia' Clinical Hospital of Psychiatry, 041914 Bucharest, Romania
| | - Antonia Ioana Vasile
- Department of General Medicine, Medical Military Institute, 010919 Bucharest, Romania
| | - Simona Corina Trifu
- Department of Clinical Neurosciences, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Mihai Bogdan Cristea
- Department of Morphological Sciences, 'Carol Davila' University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Lee HJ, Bae E, Lee HY, Lee SM, Lee J. Association of natural light exposure and delirium according to the presence or absence of windows in the intensive care unit. Acute Crit Care 2021; 36:332-341. [PMID: 34696555 PMCID: PMC8907453 DOI: 10.4266/acc.2021.00556] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/07/2021] [Indexed: 11/30/2022] Open
Abstract
Background Patients in the intensive care unit (ICU) have increased risks of delirium, which is associated with worse outcomes. As pharmacologic treatments for delirium are ineffective, prevention is important. Nonpharmacologic preventive strategies include exposure to natural light and restoring circadian rhythm. We investigated the effect of exposure to natural light through windows on delirium in the ICU. Methods This retrospective cohort study assessed all patients admitted to the medical ICU of a university-affiliated hospital between January and June 2020 for eligibility. The ICU included 12 isolation rooms, six with and six without windows. Patients with ICU stays of >48 hours were included and were divided into groups based on their admission to a single room with (window group) or without windows (windowless group). The primary outcome was the cumulative incidence of delirium. The secondary outcomes were the numbers of delirium- and mechanical ventilation-free days, ICU and hospital length of stay, and in-ICU and 28-day mortalities. Results Of the 150 included patients (window group: 83 [55.3%]; windowless group: 67 [44.7%]), the cumulative incidence of delirium was significantly lower in the window group than in the windowless group (21.7% vs. 43.3%; relative risk, 1.996; 95% confidence interval [CI], 1.220–3.265). Other secondary outcomes did not differ between groups. Admission to a room with a window was independently associated with a decreased risk of delirium (adjusted odds ratio, 0.318; 95% CI, 0.125–0.805). Conclusions Exposure to natural light through windows was associated with a lower incidence of delirium in the ICU.
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Affiliation(s)
- Hyo Jin Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Eunhye Bae
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Hong Yeul Lee
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Sang-Min Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jinwoo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Facial skin temperature in acute stroke patients with delirium - A pilot study. J Neurol Sci 2021; 431:120036. [PMID: 34736122 DOI: 10.1016/j.jns.2021.120036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 12/19/2022]
Abstract
Facial skin temperature depends strongly on blood flow in small blood vessels in the skin. These are regulated by the sympathetic part of the autonomic nervous system. Delirium may pathophysiologically be associated to changes in the sympathetic part of the autonomic nervous system. In this observational study, we evaluated the influence of various exogenous and endogenous covariables on the regional facial temperatures in acute stroke patients with and without delirium. Facial thermography (FT) was performed using an infrared digital camera. Screening for delirium was done using the Confusion Assessment Method (CAM). Sixty-four patients were enrolled. Eight patients developed delirium. Sex and body temperature were positively associated to facial skin temperature, and so was ambient temperature but to an overall lesser magnitude. Stroke severity, diabetes, infection, facial palsy, facial sensory deficit, and physical activity did not influence facial skin temperature. Overall, there was no association between facial temperature and the occurrence of delirium except in one facial region, the medial palpebral commissure.
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Nitchingham A, Milne A, Toson B, Tuch B, Agar M, Close J, Caplan G. Intranasal insulin for treatment of delirium in older hospitalised patients: study protocol for a randomised controlled trial. BMJ Open 2021; 11:e050765. [PMID: 34667006 PMCID: PMC8527126 DOI: 10.1136/bmjopen-2021-050765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Delirium is one of the most common conditions diagnosed in hospitalised older people and is associated with numerous adverse outcomes, yet there are no proven pharmacological treatments. Recent research has identified cerebral glucose hypometabolism as a pathophysiological mechanism offering a therapeutic target in delirium. Insulin, delivered via the intranasal route, acts directly on the central nervous system and has been shown to enhance cerebral metabolism and improve cognition in patients with mild cognitive impairment and dementia. This trial will determine whether intranasal insulin can reduce the duration of delirium in older hospitalised patients. METHODS AND ANALYSIS This is a prospective randomised, placebo-controlled, double-blind study with 6 months follow-up. One hundred patients aged 65 years or older presenting to hospital with delirium admitted under geriatric medicine will be recruited. Participants will be randomised to intranasal insulin detemir or placebo administered twice daily until delirium resolves, defined as Confusion Assessment Method (CAM) negative for 2 days, or discharge from hospital. The primary outcome measure will be duration of delirium using the CAM. Secondary outcome measures will include length of hospital stay, severity of delirium, adherence to treatment, hospital complications, new admission to nursing home, mortality, use of antipsychotic medications during hospital stay and cognitive and physical function at 6 months postdischarge. ETHICS AND DISSEMINATION This trial has been approved by the South Eastern Sydney Human Research and Ethics Committee. Dissemination plans include submission to a peer-reviewed journal for publication and presentation at scientific conferences. TRIAL REGISTRATION NUMBER ACTRN12618000318280.
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Affiliation(s)
- Anita Nitchingham
- Department of Geriatric Medicine, Prince of Wales Hospital, Sydney, New South Wales, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Andrew Milne
- Rural Clinical School, Coffs Harbour Health Campus, University of New South Wales, Coffs Harbour, New South Wales, Australia
| | - Barbara Toson
- Flinders Centre for Epidemiology and Biostatistics, Flinders University, Adelaide, South Australia, Australia
| | - Bernard Tuch
- Department of Molecular & Translational Science, Hudson Institute, Monash University, Melbourne, Victoria, Australia
| | - Meera Agar
- Faculty of Health, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Jacqueline Close
- Department of Geriatric Medicine, Prince of Wales Hospital, Sydney, New South Wales, Australia
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Randwick, New South Wales, Australia
| | - Gideon Caplan
- Department of Geriatric Medicine, Prince of Wales Hospital, Sydney, New South Wales, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
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Abstract
Delirium, sometimes referred to as encephalopathy, is an acute confusional state that is both common in hospitalized patients and associated with poor outcomes. For patients, families, and caregivers, delirium can be a traumatic experience. While delirium is one of the most common diagnoses encountered by the consulting neurologist, the majority of the time it will have been previously unrecognized as such by the care team. Neurologic syndromes such as dementia or aphasia can either be misdiagnosed as delirium or may coexist with it, necessitating careful neurologic assessment. Once the diagnosis of delirium has been established, a careful evaluation for predisposing and precipitating factors can help uncover modifiable contributors, which should be addressed as part of a multicomponent, primarily nonpharmacologic intervention. Importantly, delirium management, which begins with comprehensive prevention, should emphasize the humanity of the delirious patient and the challenges of caring for this vulnerable population. When considered, delirium represents an important opportunity for the neurologist to substantially enhance patient care.
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Affiliation(s)
- Sophia L Ryan
- Department of Neurology, Mount Sinai Medical Center, New York, New York
| | - Eyal Y Kimchi
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts
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Heart rate variability and delirium in acute non-cardioembolic stroke: a prospective, cross-sectional, cohort study. Neurol Sci 2021; 43:2423-2431. [PMID: 34586543 PMCID: PMC8918184 DOI: 10.1007/s10072-021-05621-4] [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: 06/19/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
Objectives Delirium is an acute fluctuating disorder of attention and awareness. It is associated with autonomic dysfunction and increased mortality. The primary endpoint of our study was to measure autonomic activity in acute stroke patients, by means of heart rate variability analysis, in order to identify autonomic modifications that can predispose to delirium. Methods Patients were consecutively enrolled from the stroke unit. Inclusion criteria were age ≥ 18 years and diagnosis of stroke with onset within the previous 72 h confirmed by neuroimaging. Exclusion criteria were atrial fibrillation, congestive heart failure, and conditions requiring intensive care unit. Patients were evaluated by means of Richmond Agitation Sedation Scale (RASS) and Confusion Assessment Method-Intensive Care Unit (CAM-ICU) at baseline, after 72 h, or when symptoms suggesting delirium occurred. For each patient, ECG was recorded at baseline assessment and HRV analysis was conducted on five consecutive minutes of artifact-free ECG traces. Results Fifty-six ECGs were available for analysis. During the study period, 11 patients developed delirium. Patients with and without delirium did not differ for sex, age, severity of stroke, and comorbidities. The delirium group had greater standard deviation of the heart rate (DLR − :9.16 ± 8.28; DLR + : 14.36 ± 5.55; p = 0.026) and lower power spectral density of the HF component (DLR − : 38.23 ± 19.23 n.u.; DLR + : 25.75 ± 8.77 n.u.; p = 0.031). Conclusions Acute non-cardioembolic stroke patients with increased variability of heart rate and decreased vagal control are at risk for delirium.
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Bowman EML, Cunningham EL, Page VJ, McAuley DF. Phenotypes and subphenotypes of delirium: a review of current categorisations and suggestions for progression. Crit Care 2021; 25:334. [PMID: 34526093 PMCID: PMC8441952 DOI: 10.1186/s13054-021-03752-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/31/2021] [Indexed: 02/08/2023] Open
Abstract
Delirium is a clinical syndrome occurring in heterogeneous patient populations. It affects 45-87% of critical care patients and is often associated with adverse outcomes including acquired dementia, institutionalisation, and death. Despite an exponential increase in delirium research in recent years, the pathophysiological mechanisms resulting in the clinical presentation of delirium are still hypotheses. Efforts have been made to categorise the delirium spectrum into clinically meaningful subgroups (subphenotypes), using psychomotor subtypes such as hypoactive, hyperactive, and mixed, for example, and also inflammatory and non-inflammatory delirium. Delirium remains, however, a constellation of symptoms resulting from a variety of risk factors and precipitants with currently no successful targeted pharmacological treatment. Identifying specific clinical and biological subphenotypes will greatly improve understanding of the relationship between the clinical symptoms and the putative pathways and thus risk factors, precipitants, natural history, and biological mechanism. This will facilitate risk factor mitigation, identification of potential methods for interventional studies, and informed patient and family counselling. Here, we review evidence to date and propose a framework to identify subphenotypes. Endotype identification may be done by clustering symptoms with their biological mechanism, which will facilitate research of targeted treatments. In order to achieve identification of delirium subphenotypes, the following steps must be taken: (1) robust records of symptoms must be kept at a clinical level. (2) Global collaboration must facilitate large, heterogeneous research cohorts. (3) Patients must be clustered for identification, validation, and mapping of subphenotype stability.
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Affiliation(s)
- Emily M L Bowman
- Centre for Public Health, Block B, Institute of Clinical Sciences, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BA, Northern Ireland.
| | - Emma L Cunningham
- Centre for Public Health, Block B, Institute of Clinical Sciences, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BA, Northern Ireland
| | - Valerie J Page
- Department of Anaesthetics, Watford General Hospital, Vicarage Road, Watford, WD19 4DZ, UK
| | - Daniel F McAuley
- Centre for Experimental Medicine, Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, Northern Ireland
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Stokholm J, Birkmose LKH, Ahmed AABO, Csillag C, Kjær TW, Christensen T. Changes in autonomic tone during delirium in acute stroke patients assessed by pupillometry and skin conductance. J Neurol Sci 2021; 428:117582. [PMID: 34284172 DOI: 10.1016/j.jns.2021.117582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/07/2021] [Accepted: 07/12/2021] [Indexed: 12/19/2022]
Abstract
Delirium is a common complication in acute ischemic stroke, possibly caused by alterations in the regulation of the sympathetic autonomic nervous system. We investigated whether such an association could be demonstrated with two easy-to-use measurement techniques: Measurement of palmar skin conductance level (SCL) and pupillometry measuring the dilation velocity in the pupillary light reflex (PLRdil.vel.). The cohort study included 64 patients admitted with acute ischemic stroke. During the study period (median 4.1 days, interquartile range 2.1 days) patients were assessed for delirium once daily as well as with measurements of SCL and PLRdil.vel up to twice daily. SCL and PLRdil.vel. during delirium were lower than without delirium present. For SCL the unadjusted difference was -40.8% (95% CI (-55.1 to -22.0), P value <.001) and for PLRdil.vel the unadjusted difference was -0.22 mm/s (95% CI (-0.42 to -0.01), P value = .041). The results demonstrate changes in sympathetic autonomic nervous system regulation during delirium in acute stroke patients.
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Affiliation(s)
- Jannik Stokholm
- Department of Neurology, Nordsjællands Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark; Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark.
| | - Lars Kristian Hebsgaard Birkmose
- Department of Neurology, Nordsjællands Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark; Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Abd Al Bari Omar Ahmed
- Department of Neurology, Nordsjællands Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark; Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | - Claudio Csillag
- Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark; Psychiatric Outpatient Clinic, Mental Health Centre North Zealand, Dyrehavevej 48, 3400 Hillerød, Denmark
| | - Troels Wesenberg Kjær
- Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark; Center for Neurophysiology, Department of Neurology, Zealand University Hospital, Vestermarksvej 11, 4000 Roskilde, Denmark
| | - Thomas Christensen
- Department of Neurology, Nordsjællands Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark; Department of Clinical Medicine, University of Copenhagen, Panum Institute, Blegdamsvej 3B, 2200 Copenhagen, Denmark
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Park SK, Lim T, Cho H, Yoon HK, Lee HJ, Lee JH, Yoo S, Kim JT, Kim WH. Comparative effectiveness of pharmacological interventions to prevent postoperative delirium: a network meta-analysis. Sci Rep 2021; 11:11922. [PMID: 34099790 PMCID: PMC8184858 DOI: 10.1038/s41598-021-91314-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 05/24/2021] [Indexed: 12/30/2022] Open
Abstract
Many pharmacologic agents were investigated for the effect to prevent delirium. We aimed to comprehensively compare the effect of the pharmacological interventions to prevent postoperative delirium. A Bayesian network meta-analysis of randomized trials was performed using random effects model. PubMed, the Cochrane Central Register of Controlled Trials, and Embase were searched on 20 January 2021. Randomized trials comparing the effect of a drug to prevent postoperative delirium with another drug or placebo in adult patients undergoing any kind of surgery were included. Primary outcome was the postoperative incidence of delirium. Eighty-six trials with 26,992 participants were included. Dexmedetomidine, haloperidol, and atypical antipsychotics significantly decreased the incidence of delirium than placebo [dexmedetomidine: odds ratio 0.51, 95% credible interval (CrI) 0.40-0.66, moderate quality of evidence (QOE); haloperidol: odds ratio 0.59, 95% CrI 0.37-0.95, moderate QOE; atypical antipsychotics: odds ratio 0.27, 95% CrI 0.14-0.51, moderate QOE]. Dexmedetomidine and atypical antipsychotics had the highest-ranking probabilities to be the best. However, significant heterogeneity regarding diagnostic time window as well as small study effects precludes firm conclusion.
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Affiliation(s)
- Sun-Kyung Park
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Taeyoon Lim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hyeyeon Cho
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hyun-Kyu Yoon
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Ho-Jin Lee
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Ji-Hyun Lee
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Seokha Yoo
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jin-Tae Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Won Ho Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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Leach MJ, Sangalli M, Breakspear I, Walsh S. Essential oils for agitation in dementia [rELOAD]: A pragmatic, cluster-randomized, placebo-controlled, pilot feasibility trial. Integr Med Res 2021; 10:100747. [PMID: 34141578 PMCID: PMC8185241 DOI: 10.1016/j.imr.2021.100747] [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: 01/03/2021] [Revised: 05/04/2021] [Accepted: 05/05/2021] [Indexed: 11/19/2022] Open
Abstract
Background Clinical guidelines recommend non-pharmacological interventions as the first line of treatment for agitation in dementia. One intervention that shows some promise as a treatment for agitation is essential oils. The objective of this study was to provide preliminary evidence of the effectiveness and feasibility of using topically-administered, individualized essential oil preparations for the alleviation of agitation in persons with dementia. Methods We conducted a 10-week pragmatic, cluster-randomized, placebo-controlled, pilot feasibility trial to compare the effectiveness of topically-administered, individualized essential oil preparations to control (placebo) preparations. Outcomes included frequency and severity of agitation, quality of life, frequency of antipsychotic medication use and physical restraint, incidence of adverse events, and trial feasibility. Participants with dementia and clinically significant agitation were recruited from five residential aged-care facilities across regional South Australia. Results Thirty-eight participants were randomized from five sites. Accounting for random effects, we found statistically significant differences between the intervention and control groups in Pittsburgh Agitation Scale (PAS) aberrant vocalization sub score, Cohen Mansfield Agitation Inventory (CMAI) verbally agitated sub score and CMAI total score at week 4, but not at weeks 8 (post-intervention) or 10 (follow-up). No significant time-group interactions were observed for other PAS/CMAI scores or sub scores, quality of life - Alzheimer's disease total score, or frequency of physical restraint or as-needed antipsychotic medication. No adverse events were reported in any group. Conclusions The study findings highlight some promising effects of topically-administered, individualized essential oil preparations for agitation in dementia, and indicate that a large multi-center, cluster-randomized controlled trial of this treatment is feasible. Trial registration Australian New Zealand Clinical Trial Registry [ACTRN12617001159347].
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Affiliation(s)
- Matthew J Leach
- National Centre for Naturopathic Medicine, Southern Cross University, East Lismore, Australia
- Corresponding author at: National Centre for Naturopathic Medicine, Southern Cross University, Military Road, East Lismore, 2480, Australia.
| | | | - Ian Breakspear
- Endeavour College of Natural Health, Haymarket, Australia
| | - Sandra Walsh
- Department of Rural Health, University of South Australia, Whyalla Norrie, Australia
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Heinrich M, Müller A, Lammers-Lietz F, Borchers F, Mörgeli R, Kruppa J, Zacharias N, Winterer G, Slooter AJC, Spies CD. Radiological, Chemical, and Pharmacological Cholinergic System Parameters and Neurocognitive Disorders in Older Presurgical Adults. J Gerontol A Biol Sci Med Sci 2021; 76:1029-1036. [PMID: 32710543 DOI: 10.1093/gerona/glaa182] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND A pre-existing neurocognitive disorder (NCD) is a relevant factor for the outcome of surgical patients. To improve understanding of these conditions, we investigated the association between parameters of the cholinergic system and NCD. METHOD This investigation is part of the BioCog project (www.biocog.eu), which is a prospective multicenter observational study including patients aged 65 years and older scheduled for elective surgery. Patients with a Mini-Mental State Examination (MMSE) score ≤23 points were excluded. Neurocognitive disorder was assessed according to the fifth Diagnostic and Statistical Manual of Mental Disorders criteria. The basal forebrain cholinergic system volume (BFCSV) was assessed with magnetic resonance imaging, the peripheral cholinesterase (ChE) activities with point-of-care measurements, and anticholinergic load by analyzing the long-term medication with anticholinergic scales (Anticholinergic Drug Scale [ADS], Anticholinergic Risk Scale [ARS], Anticholinergic Cognitive Burden Scale [ACBS]). The associations of BFCSV, ChE activities, and anticholinergic scales with NCD were studied with logistic regression analysis, adjusting for confounding factors. RESULTS A total of 797 participants (mean age 72 years, 42% females) were included. One hundred and eleven patients (13.9%) fulfilled criteria for mild NCD and 82 patients (10.3%) for major NCD criteria. We found that AcetylChE activity was associated with major NCD (odds ratio [95% confidence interval]: [U/gHB] 1.061 [1.010, 1.115]), as well as ADS score ([points] 1.353 [1.063, 1.723]) or ARS score, respectively ([points] 1.623 [1.100, 2.397]) with major NCD. However, we found no association between BFCSV or ButyrylChE activity with mild or major NCD. CONCLUSIONS AcetylChE activity and anticholinergic load were associated with major NCD. Future research should focus on the association of the cholinergic system and the development of postoperative delirium and postoperative NCD.
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Affiliation(s)
- Maria Heinrich
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany.,Berlin Institute of Health (BIH), Germany
| | - Anika Müller
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Florian Lammers-Lietz
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Friedrich Borchers
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Rudolf Mörgeli
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Jochen Kruppa
- Berlin Institute of Health (BIH), Germany.,Institute of Biometry and Clinical Epidemiology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
| | - Norman Zacharias
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany.,Pharmaimage Biomarker Solutions GmbH, Berlin, Germany
| | | | - Arjen J C Slooter
- Department of Intensive Care Medicine, University Medical Center Utrecht, Utrecht University, the Netherlands.,UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Claudia D Spies
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
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Cheon SY, Koo BN, Kim SY, Kam EH, Nam J, Kim EJ. Scopolamine promotes neuroinflammation and delirium-like neuropsychiatric disorder in mice. Sci Rep 2021; 11:8376. [PMID: 33863952 PMCID: PMC8052461 DOI: 10.1038/s41598-021-87790-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/05/2021] [Indexed: 01/13/2023] Open
Abstract
Postoperative delirium is a common neuropsychiatric syndrome resulting a high postsurgical mortality rate and decline in postdischarge function. Extensive research has been performed on both human and animal delirium-like models due to their clinical significance, focusing on systematic inflammation and consequent neuroinflammation playing a key role in the pathogenesis of postoperative cognitive dysfunctions. Since animal models are widely utilized for pathophysiological study of neuropsychiatric disorders, this study aimed at examining the validity of the scopolamine-induced delirium-like mice model with respect to the neuroinflammatory hypothesis of delirium. Male C57BL/6 mice were treated with intraperitoneal scopolamine (2 mg/kg). Neurobehavioral tests were performed to evaluate the changes in cognitive functions, including learning and memory, and the level of anxiety after surgery or scopolamine treatment. The levels of pro-inflammatory cytokines (IL-1β, IL-18, and TNF-α) and inflammasome components (NLRP3, ASC, and caspase-1) in different brain regions were measured. Gene expression profiles were also examined using whole-genome RNA sequencing analyses to compare gene expression patterns of different mice models. Scopolamine treatment showed significant increase in the level of anxiety and impairments in memory and cognitive function associated with increased level of pro-inflammatory cytokines and NLRP3 inflammasome components. Genetic analysis confirmed the different expression patterns of genes involved in immune response and inflammation and those related with the development of the nervous system in both surgery and scopolamine-induced mice models. The scopolamine-induced delirium-like mice model successfully showed that analogous neuropsychiatric changes coincides with the neuroinflammatory hypothesis for pathogenesis of delirium.
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Affiliation(s)
- So Yeong Cheon
- Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju, Republic of Korea
| | - Bon-Nyeo Koo
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.,Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - So Yeon Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.,Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Hee Kam
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.,Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junhyun Nam
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Eun Jung Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. .,Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
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De León LE, Rochefort MM, Bravo-Iñiguez CE, Fox SW, Tarascio JN, Cardin K, DuMontier C, Frain LN, Jaklitsch MT. Opportunities for quality improvement in the morbidity pattern of older adults undergoing pulmonary lobectomy for cancer. J Geriatr Oncol 2021; 12:416-421. [PMID: 32980269 PMCID: PMC8011279 DOI: 10.1016/j.jgo.2020.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/01/2020] [Accepted: 09/16/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND There is limited information on the frequency of complications among older adults after oncological thoracic surgery in the modern era. We hypothesized that morbidity and mortality in older adults with lung cancer undergoing lobectomy is low and different than that of younger patients undergoing thoracic surgery. METHODS All patients undergoing lobectomy at a large volume academic center between May 2016 and May 2019 were included. Patients were prospectively monitored to grade postoperative morbidity by organ system, based on the Clavien-Dindo classification. Patients were divided into two groups: Group 1 included patients 65-91 years of age, and Group 2 included those <65 years. RESULTS Of 680 lobectomies in 673 patients, 414(61%) were older than 65 years of age (group 1). Median age at surgery was 68 years (20-91). Median hospital stay was 4 days (1-38) and longer in older adults. Older adults experienced higher rates of grade II and IV complications, mostly driven by an increased incidence of delirium, atrial fibrillation, prolonged air leak, respiratory failure and urinary retention. In this modern cohort, there was only 1 stroke (0.1%), and delirium was reduced to 7%. Patients undergoing minimally invasive (MI) surgery had a lower rate of Grade IV life-threatening complications. Older adults were more likely to be discharged to a rehabilitation facility, however this difference also disappeared with MI surgical procedures. CONCLUSIONS Current morbidity of older adults undergoing lobectomy for cancer is low and is different than that of younger patients. Thoracotomy may be associated with postoperative complications in these patients. Our findings suggest the need to consider MI approaches and broad-based, geriatric-focused perioperative management of older adults undergoing lobectomy.
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Affiliation(s)
- Luis E De León
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Matthew M Rochefort
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Carlos E Bravo-Iñiguez
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Sam W Fox
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeffrey N Tarascio
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kristin Cardin
- Division of Aging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Clark DuMontier
- Division of Aging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Laura N Frain
- Division of Aging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael T Jaklitsch
- Division of Thoracic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Shin YY, Lee JS, Park KC, Rhee HY. Delirium caused by topical administration of cyclopentolate for cataract surgery in mild cognitive impairment due to Alzheimer's disease: A case report. Medicine (Baltimore) 2021; 100:e24394. [PMID: 33663052 PMCID: PMC7909168 DOI: 10.1097/md.0000000000024394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/29/2020] [Indexed: 01/05/2023] Open
Abstract
RATIONALES Cholinergic modification by anticholinergic medication can produce adverse effects in central nervous system (CNS) and cyclopentolate is an antimuscarinic agent widely used for ophthalmologic management. We demonstrate a rare case of hyperactive delirium caused by topical administration of cyclopentolate in a patient with amnestic mild cognitive impairment (MCI) due to Alzheimer's disease (AD). PATIENT CONCERNS A 74-year-old man showed acute confusion after preparation for cataract operation in day surgery clinic. The patient became confused and agitated after instillation of topical cyclopentolate drop into the eye and the symptoms persisted over several hours. DIAGNOSIS Previously the patient had been diagnosed with amnestic MCI with the finding of bilateral medial temporal atrophy on brain magnetic resonance imaging. 18F-flutemetamol positron emission tomography scan demonstrated multifocal amyloid deposition in the brain. INTERVENTIONS The patient was closely observed with the supportive management. OUTCOMES The patient began to recover 5 h after the onset of symptoms and the cognitive function was reverted to previous state within 24 h. LESSONS It is well known that several drugs with anticholinergic effects used in perioperative periods make the patients susceptible to delirium, but even the topical administration of cyclopentolate for cataract surgery also produce adverse CNS effects in a vulnerable patient who is diagnosed with MCI due to AD in this case.
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Affiliation(s)
- Yu Yong Shin
- Department of Neurology, Naeun Hospital, Incheon
| | - Jin San Lee
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital
| | - Key-Chung Park
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital
| | - Hak Young Rhee
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
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Rollo E, Callea A, Brunetti V, Vollono C, Marotta J, Imperatori C, Frisullo G, Broccolini A, Della Marca G. Delirium in acute stroke: A prospective, cross-sectional, cohort study. Eur J Neurol 2021; 28:1590-1600. [PMID: 33476475 DOI: 10.1111/ene.14749] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Delirium is a neuropsychiatric disorder of attention and awareness that develops over a short time and fluctuates in severity. Although delirium has been extensively studied in intensive care units, the incidence of delirium in stroke units and its predictors in stroke patients need further investigation. The endpoints of our study were incidence of delirium in acute stroke and the risk factors that predispose to this condition. METHODS Patients were consecutively enrolled in a stroke unit from April to October 2020. Inclusion criteria were: age ≥18 years, acute stroke and National Institute of Health Stroke Scale (NIHSS) score ≥1 at the time of clinical assessment of delirium. Exclusion criteria were: transient ischemic attack; absence of neuroimaging evidence of brain lesion; cerebral venous thrombosis; subarachnoid hemorrhage; and clinical conditions requiring intensive care unit treatment. All patients were evaluated by means of Richmond Agitation-Sedation Scale (RASS) and Confusion Assessment Method-Intensive Care Unit (CAM-ICU) scores at baseline, evaluations which were repeated within 72 h or when patients developed symptoms suggesting delirium. RESULTS The overall incidence of delirium was 36/120 (30%). Delirium was associated with aphasia (odds ratio [OR] 9.77; confidence interval [CI] 1.2-79.6), chronic obstructive pulmonary disease (COPD; OR 16.67; CI 1.1-263.0), deep Fazekas score (OR 5.05; CI 1.7-14.8), and physical restraint (OR 45.02; CI 1.4-1411.5). Diabetes was associated with a lower incidence of delirium (OR 0.04; CI 0.026-0.7). CONCLUSIONS Nearly one-third of patients (30%) had delirium in the acute phase of stroke. This finding supports the notion that delirium is a common complication of stroke. Delirium was associated with speech disorder, leukoencephalopathy, COPD and early use of physical restraint.
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Affiliation(s)
- Eleonora Rollo
- Department of Neurosciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Antonio Callea
- Department of Neurosciences, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valerio Brunetti
- Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Catello Vollono
- Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Jessica Marotta
- Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Claudio Imperatori
- Cognitive and Clinical Psychology Laboratory, Department of Human Sciences, European University of Rome, Rome, Italy
| | - Giovanni Frisullo
- Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Aldobrando Broccolini
- Department of Neurosciences, Università Cattolica del Sacro Cuore, Rome, Italy.,Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Giacomo Della Marca
- Department of Neurosciences, Università Cattolica del Sacro Cuore, Rome, Italy.,Dipartimento Scienze dell'Invecchiamento, Neurologiche, Ortopediche e della Testa-Collo, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
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75
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Seo CL, Park JY, Park J, Kim HE, Cho J, Seok JH, Kim JJ, Shin CS, Oh J. Neutrophil-Lymphocyte Ratio as a Potential Biomarker for Delirium in the Intensive Care Unit. Front Psychiatry 2021; 12:729421. [PMID: 34912245 PMCID: PMC8667224 DOI: 10.3389/fpsyt.2021.729421] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Recognition and early detection of delirium in the intensive care unit (ICU) is essential to improve ICU outcomes. To date, neutrophil-lymphocyte ratio (NLR), one of inflammatory markers, has been proposed as a potential biomarker for brain disorders related to neuroinflammation. This study aimed to investigate whether NLR could be utilized in early detection of delirium in the ICU. Methods: Of 10,144 patients who admitted to the ICU, 1,112 delirium patients (DE) were included in the current study. To compare among inflammatory markers, NLR, C-reactive protein (CRP), and white blood cell (WBC) counts were obtained: the mean NLR, CRP levels, and WBC counts between the initial day of ICU admission and the day of initial delirium onset within DE were examined. The inflammatory marker of 1,272 non-delirium patients (ND) were also comparatively measured as a supplement. Further comparisons included a subgroup analysis based on delirium subtypes (non-hypoactive vs. hypoactive) or admission types (elective vs. emergent). Results: The NLR and CRP levels in DE increased on the day of delirium onset compared to the initial admission day. ND also showed increased CRP levels on the sixth day (the closest day to average delirium onset day among DE) of ICU admission compared to baseline, while NLR in ND did not show significant difference over time. In further analyses, the CRP level of the non-hypoactive group was more increased than that of the hypoactive group during the delirium onset. NLR, however, was more significantly increased in patients with elective admission than in those with emergent admission. Conclusion: Elevation of NLR was more closely linked to the onset of delirium compared to other inflammatory markers, indicating that NLR may play a role in early detection of delirium.
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Affiliation(s)
- Chai Lee Seo
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, South Korea
| | - Jin Young Park
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, South Korea
| | - Jaesub Park
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, National Health Insurance Service Ilsan Hospital, Goyang, South Korea
| | - Hesun Erin Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jaehwa Cho
- Department of Pulmonary and Critical Care Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jeong-Ho Seok
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jae-Jin Kim
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Cheung Soo Shin
- Department of Anesthesiology and Pain Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, South Korea
| | - Jooyoung Oh
- Institute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, South Korea.,Department of Psychiatry, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
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76
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Guo D, Lin T, Deng C, Zheng Y, Gao L, Yue J. Risk Factors for Delirium in the Palliative Care Population: A Systematic Review and Meta-Analysis. Front Psychiatry 2021; 12:772387. [PMID: 34744847 PMCID: PMC8566675 DOI: 10.3389/fpsyt.2021.772387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 09/23/2021] [Indexed: 02/05/2023] Open
Abstract
Objective: Delirium is common and highly distressing for the palliative care population. Until now, no study has systematically reviewed the risk factors of delirium in the palliative care population. Therefore, we performed a systematic review and meta-analysis to evaluate delirium risk factors among individuals receiving palliative care. Methods: We systematically searched PubMed, Medline, Embase, and Cochrane database to identify relevant observational studies from database inception to June 2021. The methodological quality of the eligible studies was assessed by the Newcastle Ottawa Scale. We estimated the pooled adjusted odds ratio (aOR) for individual risk factors using the inverse variance method. Results: Nine studies were included in the review (five prospective cohort studies, three retrospective case-control studies and one retrospective cross-section study). In pooled analyses, older age (aOR: 1.02, 95% CI: 1.01-1.04, I 2 = 37%), male sex (aOR:1.80, 95% CI: 1.37-2.36, I 2 = 7%), hypoxia (aOR: 0.87, 95% CI: 0.77-0.99, I 2 = 0%), dehydration (aOR: 3.22, 95%CI: 1.75-5.94, I 2 = 18%), cachexia (aOR:3.40, 95% CI: 1.69-6.85, I 2 = 0%), opioid use (aOR: 2.49, 95%CI: 1.39-4.44, I 2 = 0%), anticholinergic burden (aOR: 1.18, 95% CI: 1.07-1.30, I 2 = 9%) and Eastern Cooperative Oncology Group Performance Status (aOR: 2.54, 95% CI: 1.56-4.14, I 2 = 21%) were statistically significantly associated with delirium. Conclusion: The risk factors identified in our review can help to highlight the palliative care population at high risk of delirium. Appropriate strategies should be implemented to prevent delirium and improve the quality of palliative care services.
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Affiliation(s)
- Duan Guo
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.,Department of Palliative Medicine, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Taiping Lin
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Chuanyao Deng
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yuxia Zheng
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Langli Gao
- West China School of Nursing, Sichuan University, Chengdu, China.,Department of Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jirong Yue
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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77
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Urso D, Gnoni V, Filardi M, Logroscino G. Delusion and Delirium in Neurodegenerative Disorders: An Overlooked Relationship? Front Psychiatry 2021; 12:808724. [PMID: 35115974 PMCID: PMC8804700 DOI: 10.3389/fpsyt.2021.808724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/24/2021] [Indexed: 12/04/2022] Open
Abstract
Delusions are part of the neuropsychiatric symptoms that patients suffering from neurodegenerative conditions frequently develop at some point of the disease course and are associated with an increased risk of cognitive and functional decline. Delirium is a syndrome characterized by acute onset of deficits in attention, awareness, and cognition that fluctuate in severity over a short time period. Delusions and delirium are frequently observed in the context of neurodegeneration, and their presence can easily mislead clinicians toward a misdiagnosis of psychiatric disorder further delaying the proper treatment. Risk factors for developing delusion and delirium in neurodegenerative conditions have been investigated separately while the possible interplay between these two conditions has not been explored so far. With this study, we aim to achieve a more comprehensive picture of the relationship between delusions and delirium in neurodegeneration by analyzing prevalence and subtypes of delusions in different neurodegenerative disorders; providing an overview of clinical tools to assess delusions in neurodegenerative patients and how delusions are covered by delirium assessment tools and discussing the possible common pathophysiology mechanisms between delusion and delirium in neurodegenerative patients. A more extensive characterization of the relationship between delusions and delirium may help to understand whether delusions may constitute a risk factor for delirium and may ameliorate the management of both conditions in patients with neurodegenerative disorders.
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Affiliation(s)
- Daniele Urso
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, Pia Fondazione Cardinale G. Panico, University of Bari Aldo Moro, Bari, Italy.,Department of Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Valentina Gnoni
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, Pia Fondazione Cardinale G. Panico, University of Bari Aldo Moro, Bari, Italy.,Department of Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Marco Filardi
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, Pia Fondazione Cardinale G. Panico, University of Bari Aldo Moro, Bari, Italy.,Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Giancarlo Logroscino
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, Pia Fondazione Cardinale G. Panico, University of Bari Aldo Moro, Bari, Italy.,Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
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78
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Roberson SW, Patel MB, Dabrowski W, Ely EW, Pakulski C, Kotfis K. Challenges of Delirium Management in Patients with Traumatic Brain Injury: From Pathophysiology to Clinical Practice. Curr Neuropharmacol 2021; 19:1519-1544. [PMID: 33463474 PMCID: PMC8762177 DOI: 10.2174/1570159x19666210119153839] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/12/2020] [Accepted: 01/13/2021] [Indexed: 11/22/2022] Open
Abstract
Traumatic brain injury (TBI) can initiate a very complex disease of the central nervous system (CNS), starting with the primary pathology of the inciting trauma and subsequent inflammatory and CNS tissue response. Delirium has long been regarded as an almost inevitable consequence of moderate to severe TBI, but more recently has been recognized as an organ dysfunction syndrome with potentially mitigating interventions. The diagnosis of delirium is independently associated with prolonged hospitalization, increased mortality and worse cognitive outcome across critically ill populations. Investigation of the unique problems and management challenges of TBI patients is needed to reduce the burden of delirium in this population. In this narrative review, possible etiologic mechanisms behind post-traumatic delirium are discussed, including primary injury to structures mediating arousal and attention and secondary injury due to progressive inflammatory destruction of the brain parenchyma. Other potential etiologic contributors include dysregulation of neurotransmission due to intravenous sedatives, seizures, organ failure, sleep cycle disruption or other delirium risk factors. Delirium screening can be accomplished in TBI patients and the presence of delirium portends worse outcomes. There is evidence that multi-component care bundles including an analgesia-prioritized sedation algorithm, regular spontaneous awakening and breathing trials, protocolized delirium assessment, early mobility and family engagement can reduce the burden of ICU delirium. The aim of this review is to summarize the approach to delirium in TBI patients with an emphasis on pathogenesis and management. Emerging CNS-active drug therapies that show promise in preclinical studies are highlighted.
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Affiliation(s)
| | | | | | | | | | - Katarzyna Kotfis
- Address correspondence to this author at the Department of Anesthesiology, Intensive Therapy and Acute Intoxications, Pomeranian Medical University in Szczecin, Poland; E-mail:
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79
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McCoy TH, Castro VM, Hart KL, Perlis RH. Stratified delirium risk using prescription medication data in a state-wide cohort. Gen Hosp Psychiatry 2021; 71:114-120. [PMID: 34091195 PMCID: PMC8249339 DOI: 10.1016/j.genhosppsych.2021.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/03/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Delirium is a common condition associated with increased morbidity and mortality. Medication side effects are a possible source of modifiable delirium risk and provide an opportunity to improve delirium predictive models. This study characterized the risk for delirium diagnosis by applying a previously validated algorithm for calculating central nervous system adverse effect burden arising from a full medication list. METHOD Using a cohort of hospitalized adult (age 18-65) patients from the Massachusetts All-Payers Claims Database, we calculated medication burden following hospital discharge and characterized risk of new coded delirium diagnosis over the following 90 days. We applied the resulting model to a held-out test cohort. RESULTS The cohort included 62,180 individuals of whom 1.6% (1019) went on to have a coded delirium diagnosis. In the training cohort (43,527 individuals), the medication burden feature was positively associated with delirium diagnosis (OR = 5.75, 95% CI 4.34-7.63) and this association persisted (aOR = 1.95; 1.31-2.92) after adjusting for demographics, clinical features, prescribed medications, and anticholinergic risk score. In the test cohort, the trained model produced an area under the curve of 0.80 (0.78-0.82). This performance was similar across subgroups of age and gender. CONCLUSION Aggregating brain-related medication adverse effects facilitates identification of individuals at high risk of subsequent delirium diagnosis.
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Affiliation(s)
- Thomas H McCoy
- Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA.
| | - Victor M Castro
- Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA.
| | - Kamber L Hart
- Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA.
| | - Roy H Perlis
- Massachusetts General Hospital, 185 Cambridge Street, Boston, MA 02114, USA.
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80
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Impact of Tobacco Smoking on Outcomes After Posterior Decompression Surgery in Patients With Cervical Spondylotic Myelopathy: A Retrospective Multicenter Study. Clin Spine Surg 2020; 33:E493-E498. [PMID: 33000929 DOI: 10.1097/bsd.0000000000000984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
STUDY DESIGN This was a case-control study. OBJECTIVE The objective of this study was to clarify the surgical outcomes after cervical posterior decompression in patients who smoked. SUMMARY OF BACKGROUND DATA Smoking is associated with poor outcomes in the field of spinal surgery. However, the impact of tobacco smoking on the outcomes after posterior decompression surgery has not been fully evaluated in patients with cervical spondylotic myelopathy. MATERIALS AND METHODS In this retrospective multicenter study, 587 patients with cervical spondylotic myelopathy were enrolled at 17 institutions in Japan. Patients underwent cervical laminoplasty or laminectomy and were followed up for at least 1 year after surgery. Outcome measures were: preoperative smoking status, perioperative complications, the Japanese Orthopedic Association scale, and the Visual Analog Scale for neck pain. After adjusting for age and sex by exact matching, smoking and nonsmoking groups were compared using an unpaired t test for continuous variables or a χ test for categorical variables. RESULTS There were 182 (31%) current smokers and 405 (69%) nonsmokers including previous smokers. After matching, 158 patients were extracted from each group. Demographic data and surgical information were almost the same between the groups. Regarding postoperative complications, there was no significant difference in the rate of surgical site infection, cerebrospinal fluid leakage, hematoma, segmental motor paralysis, or neurological deficit. However, smokers showed a significantly higher risk for delirium (3.8% vs. 0.0%, P=0.039). Smokers and nonsmokers showed comparable changes in functional recovery according to Japanese Orthopedic Association scores (3.2±2.1 vs. 3.0±2.1, P=0.425) and in neck pain reduction using the Visual Analog Scale (-1.7±3.1 vs. -1.4±2.8, P=0.417) at the final follow-up. CONCLUSIONS Smokers exhibited functional restoration and neck pain reduction after cervical posterior decompression. Attention is required, however, for the postoperative complication of delirium, which could be caused by the acute cessation of tobacco smoking after admission. LEVEL OF EVIDENCE Level III.
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81
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Arias F, Chen F, Fong TG, Shiff H, Alegria M, Marcantonio ER, Gou Y, Jones RN, Travison TG, Schmitt EM, Kind AJ, Inouye SK. Neighborhood-Level Social Disadvantage and Risk of Delirium Following Major Surgery. J Am Geriatr Soc 2020; 68:2863-2871. [PMID: 32865254 PMCID: PMC7744425 DOI: 10.1111/jgs.16782] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/13/2020] [Accepted: 07/18/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND/OBJECTIVES Delirium is a common postoperative complication associated with prolonged length of stay, hospital readmission, and premature mortality. We explored the association between neighborhood-level characteristics and delirium incidence and severity, and compared neighborhood- with individual-level indicators of socioeconomic status in predicting delirium incidence. DESIGN A prospective observational cohort of patients enrolled between June 18, 2010, and August 8, 2013. Baseline interviews were conducted before surgery, and delirium/delirium severity was evaluated daily during hospitalization. Research staff evaluating delirium were blinded to baseline cognitive status. SETTING Two academic medical centers in Boston, MA. PARTICIPANTS A total of 560 older adults, aged 70 years or older, undergoing major noncardiac surgery. INTERVENTION The Area Deprivation Index (ADI) was used to characterize each neighborhood's socioeconomic disadvantage. MEASUREMENTS Delirium was assessed using the Confusion Assessment Method (CAM) long form. Delirium severity was calculated using the highest value of CAM Severity score (CAM-S) occurring during daily hospital assessments (CAM-S Peak). RESULTS Residing in the most disadvantaged neighborhoods (ADI > 44) was associated with a higher risk of incident delirium (12/26; 46%), compared with the least disadvantaged neighborhoods (122/534; 23%) (risk ratio (RR) (95% confidence interval (CI)) = 2.0 (1.3-3.1). The CAM-S Peak score was significantly associated with ADI (Spearman rank correlation, ρ = 0.11; P = .009). Mean CAM-S Peak scores generally rose from 3.7 to 5.3 across levels of increasing neighborhood disadvantage. The RR (95% CI) values associated with individual-level markers of socioeconomic status and cultural background were: 1.2 (0.9-1.7) for education of 12 years or less; 1.3 (0.8-2.1) for non-White race; and 1.7 (1.1-2.6) for annual household income of less than $20,000. None of these individual-level markers exceeded the ADI in terms of effect size or significance for prediction of delirium risk. CONCLUSIONS Neighborhood-level makers of social disadvantage are associated with delirium incidence and severity, and demonstrated an exposure-response relationship. Future studies should consider contextual-level metrics, such as the ADI, as risk markers of social disadvantage that can help to guide delirium treatment and prevention.
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Affiliation(s)
- Franchesca Arias
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Fan Chen
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
- Biostatistics and Data Sciences, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew Senior Life, Boston, MA 02131, USA
| | - Tamara G. Fong
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Haley Shiff
- Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Margarita Alegria
- Disparities Research Unit, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Medicine and Psychiatry, Harvard Medical School, Boston, MA 02115
| | - Edward R. Marcantonio
- Harvard Medical School, Boston, MA 02115, USA
- Division of General Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
- Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Yun Gou
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
- Biostatistics and Data Sciences, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew Senior Life, Boston, MA 02131, USA
| | - Richard N. Jones
- Department of Psychiatry and Human Behavior, Brown University, Warren Alpert Medical School, Providence, RI 02912, USA
| | - Thomas G. Travison
- Harvard Medical School, Boston, MA 02115, USA
- Biostatistics and Data Sciences, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew Senior Life, Boston, MA 02131, USA
| | - Eva M. Schmitt
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
| | - Amy J.H. Kind
- Health Services and Care Research Program, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison WI 53705, USA
- Madison VA Geriatrics Research Education and Clinical Center (GRECC), Middleton VA Hospital, Madison WI 53705, USA
| | - Sharon K. Inouye
- Aging Brain Center, Hinda and Arthur Marcus Institute for Aging Research at the Hebrew SeniorLife, Boston, MA 02131, USA
- Harvard Medical School, Boston, MA 02115, USA
- Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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Zujalovic B, Mayer B, Hafner S, Balling F, Barth E. AChE-activity in critically ill patients with suspected septic encephalopathy: a prospective, single-centre study. BMC Anesthesiol 2020; 20:287. [PMID: 33203376 PMCID: PMC7670732 DOI: 10.1186/s12871-020-01204-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 11/12/2020] [Indexed: 11/28/2022] Open
Abstract
Background Up to 70% of septic patients develop a diffuse brain dysfunction named “septic associated encephalopathy” which is often solely based on clinical impressions. However, the diagnosis of septic associated encephalopathy is outcome-relevant due to an increase in mortality in these patients. Neuroinflammation as well as a disturbance of cholinergic transmission are assumed to be the causes of both delirium and septic associated encephalopathy. An alteration in cholinergic activity can be objectified by measuring the erythrocytic acetylcholinesterase-activity. Single-point measurements of acetylcholinesterase-activity are of limited value because individual and dynamic changes over time have to be anticipated. Therefore, the hypothesis should be tested whether a longitudinal analysis of acetylcholinesterase-activity in critically ill patients can help to diagnose a suspected septic-associated encephalopathy and whether acetylcholinesterase-activity differs in comparison to non-septic patients. Methods In this prospective, observational, single-center study, 175 patients (45 with sepsis, 130 without sepsis) were included. All patients were admitted to the surgical Intensive Care Unit of the University hospital Ulm, Germany. Patients were examined daily for the presence of delirium using the CAM-ICU. Daily measurement of the acetylcholinesterase-activity was performed in all patients. The possible time-dependent change in acetylcholinesterase-activity was analyzed with a linear regression model considering repeated measurements. Using a time-adjusted model further factors able to affect AChE-activity were investigated. For nonparametric distributions quantitative data were compared using Wilcoxon matched-pairs test. For analysis of independent samples the Mann-Whitney test was performed. Results About 90% of septic patients with suspected septic associated encephalopathy exhibited a statistically significant time-dependent in- or decrease in acetylcholinesterase-activity over a period of at least 5 consecutive days. Conclusion Longitudinal measurement of acetylcholinesterase-activity over several consecutive days revealed a change from baseline only in septic patients with suspected septic-associated encephalopathy. Therefore, longitudinal measurement of acetylcholinesterase-activity is able to diagnose septic associated encephalopathy in septic patients with delirious symptoms. Trial registration Retrospectively registered at German Clinical Trials Register, registration number DRKS00020542, date of registration: January 27, 2020.
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Affiliation(s)
- Benedikt Zujalovic
- Department of Anesthesiology, Section Interdisciplinary Surgical Intensive Care, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
| | - Benjamin Mayer
- Ulm University, Institute of Epidemiology and Medical Biometry, Schwabstraße 13, 89075, Ulm, Germany
| | - Sebastian Hafner
- Department of Anesthesiology, Section Interdisciplinary Surgical Intensive Care, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Florian Balling
- Department of Anesthesiology, Section Interdisciplinary Surgical Intensive Care, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Eberhard Barth
- Department of Anesthesiology, Section Interdisciplinary Surgical Intensive Care, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
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Saito T, Toda H, Duncan GN, Jellison SS, Yu T, Klisares MJ, Daniel S, Andreasen A, Leyden L, Hellman M, Shinozaki E, Lee S, Yoshino A, Cho HR, Shinozaki G. Epigenetics of neuroinflammation: Immune response, inflammatory response and cholinergic synaptic involvement evidenced by genome-wide DNA methylation analysis of delirious inpatients. J Psychiatr Res 2020; 129:61-65. [PMID: 32590150 PMCID: PMC7486988 DOI: 10.1016/j.jpsychires.2020.06.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 01/18/2023]
Abstract
Previously our study has shown that the DNA methylation (DNAm) levels at CpG sites in the pro-inflammatory cytokine gene, TNF-alpha, decrease along with aging, suggesting the potential role of DNAm in aging and heightened inflammatory process leading to increased risk for delirium. However, DNAm differences between delirium cases and non-delirium controls have not been investigated directly. Therefore, we examined genome-wide DNAm differences in blood between patients with delirium and controls to identify useful epigenetic biomarkers for delirium. Data from a total of 87 subjects (43 delirium cases) were analyzed by a genome-wide DNAm case-control association study. A genome-wide significant CpG site near the gene of LDLRAD4 was identified (p = 5.07E-8). In addition, over-representation analysis showed several significant pathways with a false discovery rate adjusted p-value < 0.05. The top pathway with a Gene Ontology term was immune response, and the second top pathway with a Kyoto Encyclopedia of Genes and Genomes term was cholinergic synapse. Significant DNAm differences related to immune/inflammatory response were shown both at gene and pathway levels between patients with delirium and non-delirium controls. This finding indicates that DNAm status in blood has the potential to be used as epigenetic biomarkers for delirium.
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Affiliation(s)
- Taku Saito
- Department of Psychiatry, University of Iowa, Iowa City, Iowa, USA,Department of Psychiatry, School of Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Hiroyuki Toda
- Department of Psychiatry, School of Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | | | | | - Tong Yu
- Department of Psychiatry, University of Iowa, Iowa City, Iowa, USA
| | | | - Sophia Daniel
- Department of Psychiatry, University of Iowa, Iowa City, Iowa, USA
| | | | - Lydia Leyden
- Department of Psychiatry, University of Iowa, Iowa City, Iowa, USA
| | - Mandy Hellman
- Department of Psychiatry, University of Iowa, Iowa City, Iowa, USA
| | - Eri Shinozaki
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Sangil Lee
- Department of Emergency Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Aihide Yoshino
- Department of Psychiatry, School of Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Hyunkeun R. Cho
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Gen Shinozaki
- Department of Psychiatry, University of Iowa, Iowa City, IA, USA; Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Department of Anesthesia, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, USA; Interdisciplinary Graduate Program in Neuroscience, University of Iowa, Iowa City, IA, USA.
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Current Evidence Regarding Biomarkers Used to Aid Postoperative Delirium Diagnosis in the Field of Cardiac Surgery-Review. ACTA ACUST UNITED AC 2020; 56:medicina56100493. [PMID: 32987655 PMCID: PMC7598630 DOI: 10.3390/medicina56100493] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 12/16/2022]
Abstract
Postoperative cognitive disorders after cardiac surgery may manifest as postoperative delirium (POD) or later as postoperative cognitive dysfunction (POCD). The incidence of POD after cardiac surgery ranges from 16% to 73%. In contrast to POD, POCD is usually diagnosed after the discharge from hospital, with an incidence of 30 to 70% of cases, very often noticed only by close relative or friends, decreasing after six (20–30%) and twelve (15–25%) months after surgery. Perioperative cognitive disorders are associated with adverse short- and long-term effects, including increased morbidity and mortality. Due to the complexity of delirium pathomechanisms and the difficulties in the diagnosis, researchers have not yet found a clear answer to the question of which patient will be at a higher risk of developing delirium. The risk for POD and POCD in older patients with numerous comorbidities like hypertension, diabetes, and previous ischemic stroke is relatively high, and the predisposing cognitive profile for both conditions is important. The aim of this narrative review was to identify and describe biomarkers used in the diagnosis of delirium after cardiac surgery by presenting a search through studies regarding this subject, which have been published during the last ten years. The authors discussed brain-derived biomarkers, inflammation-related biomarkers, neurotransmitter-based biomarkers, and others. Work based on inflammation-related biomarkers, which are characterized by the low cost of implementation and the effectiveness of delirium diagnosis, seems to be the closest to the goal of discovering an inexpensive and effective marker. Currently, the use of a panel of tests, and not a single biomarker, brings us closer to the discovery of a test, or rather a set of tests ideal for the diagnosis of delirium after cardiac surgery.
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Ajatta MA, Oladipupo OR, Josiah SS, Osundahunsi OF, Omoba OS. Cognitive impairment by non-insulin-dependent diabetes mellitus was attenuated by dietary supplements of marble vine (Dioclea reflexa) and plantain (Musa paradisiaca) dough meals in albino rats. J Food Biochem 2020; 45:e13473. [PMID: 32964438 DOI: 10.1111/jfbc.13473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 08/10/2020] [Accepted: 08/21/2020] [Indexed: 11/27/2022]
Abstract
This study investigates the protective effect of formulated marble vine/plantain dough meals on cognitive impairment in diabetic rats. Wistar rats were divided into eight groups (n = 6) and fed with HFD for 14 days and a single dose of streptozotocin intraperitoneally on the 14th day (except control rats). Diabetic rats were treated with formulated diets and metformin. The ameliorative effect of the formulated doughs on cerebral damage in diabetic rats with respect to weight gain/loss, glucose and insulin levels, oxidative damage, neurological dysfunction, and histological alterations were assessed. The formulated diet had high protein and fiber content values ranged from 13.00 to 25.04 g/100 g and from 5.23 to 6.20 g/100 g, respectively compared to the control. Blood glucose level was observed, thereby mitigating the cerebral oxidative damage. The diet significantly ameliorated the neurological dysfunction as adjudged by increased dopamine concentration and lowered acetylcholinesterase activity; results were also supported by the outcomes from brain histopathological study. PRACTICAL APPLICATIONS: Underutilized leguminous seeds such as marble vine seeds are known for their nutraceutical potentials due to their numerous biochemical components. The study provides preliminary information on the potential of marble vine/plantain functional dough meals in the management of neurological complications resulting from type 2 diabetes mellitus in albino rats. Generally, the formulated doughs possess neuroprotective potentials in preventing neurological complications arising from diabetes. However, the effect of marble vine-plantain dough meal in managing the brain damage should be further investigated through the clinical trials before development for pharmaceutical applications.
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Affiliation(s)
- Mary A Ajatta
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
| | - Olumayowa R Oladipupo
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
| | - Sunday S Josiah
- Phytomedicine, Biochemical Pharmacology and Toxicology Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | | | - Olufunmilayo S Omoba
- Department of Food Science and Technology, Federal University of Technology, Akure, Nigeria
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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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Farasat S, Dorsch JJ, Pearce AK, Moore AA, Martin JL, Malhotra A, Kamdar BB. Sleep and Delirium in Older Adults. CURRENT SLEEP MEDICINE REPORTS 2020; 6:136-148. [PMID: 32837850 PMCID: PMC7382993 DOI: 10.1007/s40675-020-00174-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Purpose of Review Poor sleep and delirium are common in older patients but recognition and management are challenging, particularly in the intensive care unit (ICU) setting. The purpose of this review is to highlight current research on these conditions, their inter-relationship, modes of measurement, and current approaches to management. Recent Findings Sleep deprivation and delirium are closely linked, with shared clinical characteristics, risk factors, and neurochemical abnormalities. Acetylcholine and dopamine are important neurochemicals in the regulation of sleep and wakefulness and their dysregulation has been implicated in development of delirium. In the hospital setting, poor sleep and delirium are associated with adverse outcomes; non-pharmacological interventions are recommended, but tend to be resource intensive and hindered by a lack of reliable sleep measurement tools. Delirium is easier to identify, with validated tools available in both ICU and non-ICU settings; however, an optimal treatment approach remains unclear. Antipsychotics are used widely to prevent and treat delirium, although the efficacy data are equivocal. Bundled non-pharmacologic approaches represent a promising framework for prevention and management. Summary Poor sleep and delirium are common problems in older patients. While these phenomena appear linked, a causal relationship is not clearly established. At present, there are no established sleep-focused guidelines for preventing or treating delirium. Novel interventions are needed that address poor sleep and delirium, particularly in older adults.
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Affiliation(s)
- Sadaf Farasat
- Division of Geriatrics and Gerontology, University of California San Diego, 9350 Campus Point Drive, La Jolla, CA 92037 USA
| | - Jennifer J Dorsch
- Johns Hopkins Medicine, Baltimore, MD USA.,Johns Hopkins Medicine, Howard County General Hospital, 5755 Cedar Ln, Columbia, MD 21044 USA
| | - Alex K Pearce
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
| | - Alison A Moore
- Division of Geriatrics and Gerontology, University of California San Diego, 9500 Gilman Drive, MC 0665, La Jolla, CA 92093-0665 USA
| | - Jennifer L Martin
- VA Greater Los Angeles Healthcare System, 16111 Plummer St. (11E), North Hills, CA 91343 USA.,David Geffen School of Medicine at the University of California, Los Angeles, CA USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
| | - Biren B Kamdar
- Division of Pulmonary, Critical Care and Sleep Medicine, University of California San Diego School of Medicine, 9300 Campus Point Drive #7381, La Jolla, CA 92037-7381 USA
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88
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Egberts A, Moreno-Gonzalez R, Alan H, Ziere G, Mattace-Raso FUS. Anticholinergic Drug Burden and Delirium: A Systematic Review. J Am Med Dir Assoc 2020; 22:65-73.e4. [PMID: 32703688 DOI: 10.1016/j.jamda.2020.04.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To investigate the association between anticholinergic drug burden (ADB), measured with anticholinergic drug scales, and delirium and delirium severity. DESIGN Systematic review. SETTING AND PARTICIPANTS All available studies. METHODS A systematic literature search was performed in Medline, Embase, PsycINFO, Web of Science, CINAHL, Cochrane library, and Google Scholar. Studies evaluating the association between ADB (measured as a total score) and delirium or delirium severity, published in English, were eligible for inclusion. RESULTS Sixteen studies, including 148,756 persons, were included. Fifteen studies investigated delirium. ADB was measured with the Anticholinergic Risk Scale (ARS, n = 5), the Anticholinergic Cognitive Burden Scale (ACB, n = 6), the list of Chew (n = 1), the Anticholinergic Drug Scale (ADS, n = 5), a modified version of the ARS (n = 1), and a modified version of the ACB (n = 1). A high ADB, measured with the ARS, was associated with delirium (5/5). Also with the modified version of the ARS and ACB, an association was found between a high ADB and delirium during 3-month (1/1) and 1-year follow-up (1/1), respectively. When ADB was assessed with other scales, the results were inconclusive, with only 1 positive association for the ACB (1/6) and ADS (1/5) each. The possible association between ADB and delirium severity has also been investigated (ADS n = 2, Summers Drug Risk Number n = 1). One study found an association between a high ADB, measured with the ADS, and an increase in severity of delirium. CONCLUSIONS AND IMPLICATIONS ADB assessed with the ARS is consistently associated with delirium. The association found between the modified versions of the ARS and ACB and delirium needs confirmation. When ADB was assessed with other scales, the findings were inconclusive. The current findings suggest that the ARS might be a useful tool to identify patients at increased risk for delirium.
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Affiliation(s)
- Angelique Egberts
- Section of Geriatric Medicine, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Department of Hospital Pharmacy, Franciscus Gasthuis and Vlietland, Rotterdam and Schiedam, the Netherlands.
| | - Rafael Moreno-Gonzalez
- Section of Geriatric Medicine, Department of Internal Medicine, Bellvitge University Hospital, Barcelona, Spain
| | - Hava Alan
- Section of Geriatric Medicine, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Gijsbertus Ziere
- Section of Geriatric Medicine, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Francesco U S Mattace-Raso
- Section of Geriatric Medicine, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, the Netherlands
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Caton M, Ochoa ELM, Barrantes FJ. The role of nicotinic cholinergic neurotransmission in delusional thinking. NPJ SCHIZOPHRENIA 2020; 6:16. [PMID: 32532978 PMCID: PMC7293341 DOI: 10.1038/s41537-020-0105-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 05/15/2020] [Indexed: 02/07/2023]
Abstract
Delusions are a difficult-to-treat and intellectually fascinating aspect of many psychiatric illnesses. Although scientific progress on this complex topic has been challenging, some recent advances focus on dysfunction in neural circuits, specifically in those involving dopaminergic and glutamatergic neurotransmission. Here we review the role of cholinergic neurotransmission in delusions, with a focus on nicotinic receptors, which are known to play a part in some illnesses where these symptoms appear, including delirium, schizophrenia spectrum disorders, bipolar disorder, Parkinson, Huntington, and Alzheimer diseases. Beginning with what we know about the emergence of delusions in these illnesses, we advance a hypothesis of cholinergic disturbance in the dorsal striatum where nicotinic receptors are operative. Striosomes are proposed to play a central role in the formation of delusions. This hypothesis is consistent with our current knowledge about the mechanism of action of cholinergic drugs and with our abstract models of basic cognitive mechanisms at the molecular and circuit levels. We conclude by pointing out the need for further research both at the clinical and translational levels.
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Affiliation(s)
- Michael Caton
- The Permanente Medical Group, Kaiser Santa Rosa Department of Psychiatry, 2235 Mercury Way, Santa Rosa, CA, 95047, USA
- Heritage Oaks Hospital, 4250 Auburn Boulevard, Sacramento, CA, 95841, USA
| | - Enrique L M Ochoa
- Heritage Oaks Hospital, 4250 Auburn Boulevard, Sacramento, CA, 95841, USA
- Volunteer Clinical Faculty, Department of Psychiatry and Behavioral Sciences, University of California at Davis, 2230 Stockton Boulevard, Sacramento, CA, 95817, USA
| | - Francisco J Barrantes
- Laboratory of Molecular Neurobiology, Institute for Biomedical Research (BIOMED), Faculty of Medical Sciences, UCA-CONICET, Av. Alicia Moreau de Justo 1600, C1107AFF, Buenos Aires, Argentina.
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Simvastatin Prevents Long-Term Cognitive Deficits in Sepsis Survivor Rats by Reducing Neuroinflammation and Neurodegeneration. Neurotox Res 2020; 38:871-886. [PMID: 32524380 DOI: 10.1007/s12640-020-00222-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/09/2020] [Accepted: 05/01/2020] [Indexed: 02/07/2023]
Abstract
Sepsis-associated encephalopathy causes brain dysfunction that can result in cognitive impairments in sepsis survivor patients. In previous work, we showed that simvastatin attenuated oxidative stress in brain structures related to memory in septic rats. However, there is still a need to evaluate the long-term impact of simvastatin administration on brain neurodegenerative processes and cognitive damage in sepsis survivors. Here, we investigated the possible neuroprotective role of simvastatin in neuroinflammation, and neurodegeneration conditions of brain structures related to memory in rats at 10 days after sepsis survival. Male Wistar rats (250-300 g) were submitted to cecal ligation and puncture (CLP, n = 42) or remained as non-manipulated (naïve, n = 30). Both groups were treated (before and after the surgery) by gavage with simvastatin (20 mg/kg) or an equivalent volume of saline and observed for 10 days. Simvastatin-treated rats that survived to sepsis showed a reduction in the levels of nitrate, IL1-β, and IL-6 and an increase in Bcl-2 protein expression in the prefrontal cortex and hippocampus, and synaptophysin only in the hippocampus. Immunofluorescence revealed a reduction of glial activation, neurodegeneration, apoptosis, and amyloid aggregates confirmed by quantification of GFAP, Iba-1, phospho Ser396-tau, total tau, cleaved caspase-3, and thioflavin-S in the prefrontal cortex and hippocampus. In addition, treated animals presented better performance in tasks involving habituation memory, discriminative, and aversive memory. These results suggest that statins exert a neuroprotective role by upregulation of the Bcl-2 and gliosis reduction, which may prevent the cognitive deficit observed in sepsis survivor animals.
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Abstract
OBJECTIVES To describe the relationships between anticholinergic drug exposure, cholinesterase enzyme activity, inflammation, and the development of postoperative delirium in children. DESIGN Single-center prospective cohort study. SETTING Twenty-two bed PICU in a tertiary-care academic medical center in Germany. PATIENTS A consecutive cohort of children admitted after major elective surgery. INTERVENTIONS Children were screened for delirium bid over 5 consecutive postoperative days. Acetylcholinesterase and butyrylcholinesterase plasma activity levels were measured prior to surgery and once daily during the 5 day study period. Number of anticholinergic drugs and Anticholinergic Drug Scale score were calculated for each patient. MEASUREMENTS AND MAIN RESULTS Ninety-three children (age range, 0-17 yr) were included. The number of anticholinergic drugs as well as the Anticholinergic Drug Scale score were significantly correlated with development of postoperative delirium, independently of disease severity. Baseline cholinesterase enzyme levels did not differ between patients who did and did not develop postoperative delirium. Butyrylcholinesterase levels, but not acetylcholinesterase levels, dropped by 33% postoperatively, independent of the presence of postoperative delirium. Postoperative butyrylcholinesterase levels were inversely related to number of anticholinergic drugs, Anticholinergic Drug Scale score, and C-reactive protein levels. CONCLUSIONS Anticholinergic drug exposure was related to development of postoperative delirium in this cohort, with demonstration of a dose-response relationship. As there are alternative options available for many of these medications, it may be reasonable to avoid anticholinergic exposure in the PICU whenever possible.
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Tanabe S, Mohanty R, Lindroth H, Casey C, Ballweg T, Farahbakhsh Z, Krause B, Prabhakaran V, Banks MI, Sanders RD. Cohort study into the neural correlates of postoperative delirium: the role of connectivity and slow-wave activity. Br J Anaesth 2020; 125:55-66. [PMID: 32499013 DOI: 10.1016/j.bja.2020.02.027] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 01/10/2020] [Accepted: 02/28/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Delirium frequently affects older patients, increasing morbidity and mortality; however, the pathogenesis is poorly understood. Herein, we tested the cognitive disintegration model, which proposes that a breakdown in frontoparietal connectivity, provoked by increased slow-wave activity (SWA), causes delirium. METHODS We recruited 70 surgical patients to have preoperative and postoperative cognitive testing, EEG, blood biomarkers, and preoperative MRI. To provide evidence for causality, any putative mechanism had to differentiate on the diagnosis of delirium; change proportionally to delirium severity; and correlate with a known precipitant for delirium, inflammation. Analyses were adjusted for multiple corrections (MCs) where appropriate. RESULTS In the preoperative period, subjects who subsequently incurred postoperative delirium had higher alpha power, increased alpha band connectivity (MC P<0.05), but impaired structural connectivity (increased radial diffusivity; MC P<0.05) on diffusion tensor imaging. These connectivity effects were correlated (r2=0.491; P=0.0012). Postoperatively, local SWA over frontal cortex was insufficient to cause delirium. Rather, delirium was associated with increased SWA involving occipitoparietal and frontal cortex, with an accompanying breakdown in functional connectivity. Changes in connectivity correlated with SWA (r2=0.257; P<0.0001), delirium severity rating (r2=0.195; P<0.001), interleukin 10 (r2=0.152; P=0.008), and monocyte chemoattractant protein 1 (r2=0.253; P<0.001). CONCLUSIONS Whilst frontal SWA occurs in all postoperative patients, delirium results when SWA progresses to involve posterior brain regions, with an associated reduction in connectivity in most subjects. Modifying SWA and connectivity may offer a novel therapeutic approach for delirium. CLINICAL TRIAL REGISTRATION NCT03124303, NCT02926417.
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Affiliation(s)
- Sean Tanabe
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Rosaleena Mohanty
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA; Department of Radiology, University of Wisconsin, Madison, WI, USA
| | - Heidi Lindroth
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA; Center for Health Innovation and Implementation Science, Center for Aging Research, Division of Pulmonary and Critical Care Medicine, Regenstrief Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Cameron Casey
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Tyler Ballweg
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Zahra Farahbakhsh
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Bryan Krause
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | | | - Matthew I Banks
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA
| | - Robert D Sanders
- Department of Anesthesiology, University of Wisconsin, Madison, WI, USA; University of Sydney, Australia; Department of Anaesthetics, Royal Prince Alfred Hospital, Australia.
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Cornelissen AS, Klaassen SD, van Groningen T, Bohnert S, Joosen MJA. Comparative physiology and efficacy of atropine and scopolamine in sarin nerve agent poisoning. Toxicol Appl Pharmacol 2020; 396:114994. [PMID: 32251685 DOI: 10.1016/j.taap.2020.114994] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 01/20/2023]
Abstract
Anticholinergic treatment is key for effective medical treatment of nerve agent exposure. Atropine is included at a 2 mg intramuscular dose in so-called autoinjectors designed for self- and buddy-aid. As patient cohorts are not available, predicting and evaluating the efficacy of medical countermeasures relies on animal models. The use of atropine as a muscarinic antagonist is based on efficacy achieved in studies in a variety of species. The dose of atropine administered varies considerably across these studies. This is a complicating factor in the prediction of efficacy in the human situation, largely because atropine dosing also influences therapeutic efficacy of oximes and anticonvulsants generally part of the treatment administered. To improve translation of efficacy of dosing regimens, including pharmacokinetics and physiology provide a promising approach. In the current study, pharmacokinetics and physiological parameters obtained using EEG and ECG were assessed in naïve rats and in sarin-exposed rats for two anticholinergic drugs, atropine and scopolamine. The aim was to find a predictive parameter for therapeutic efficacy. Scopolamine and atropine showed a similar bioavailability, but brain levels reached were much higher for scopolamine. Scopolamine exhibited a dose-dependent loss of beta power in naïve animals, whereas atropine did not show any such central effect. This effect was correlated with an enhanced anticonvulsant effect of scopolamine compared to atropine. These findings show that an approach including pharmacokinetics and physiology could contribute to improved dose scaling across species and assessing the therapeutic potential of similar anticholinergic and anticonvulsant drugs against nerve agent poisoning.
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Affiliation(s)
- Alex S Cornelissen
- TNO Defense, Security and Safety, CBRN Protection, Lange Kleiweg 137, 2288, GJ, Rijswijk, the Netherlands.
| | - Steven D Klaassen
- TNO Defense, Security and Safety, CBRN Protection, Lange Kleiweg 137, 2288, GJ, Rijswijk, the Netherlands
| | - Tomas van Groningen
- TNO Defense, Security and Safety, CBRN Protection, Lange Kleiweg 137, 2288, GJ, Rijswijk, the Netherlands
| | - Sara Bohnert
- Defence Research and Development Canada-Suffield Research Centre, Department of National Defence, Suffield, Alberta, Canada
| | - Marloes J A Joosen
- TNO Defense, Security and Safety, CBRN Protection, Lange Kleiweg 137, 2288, GJ, Rijswijk, the Netherlands
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Khan BA, Perkins AJ, Prasad NK, Shekhar A, Campbell NL, Gao S, Wang S, Khan SH, Marcantonio ER, Twigg HL, Boustani MA. Biomarkers of Delirium Duration and Delirium Severity in the ICU. Crit Care Med 2020; 48:353-361. [PMID: 31770149 PMCID: PMC7242000 DOI: 10.1097/ccm.0000000000004139] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Both delirium duration and delirium severity are associated with adverse patient outcomes. Serum biomarkers associated with delirium duration and delirium severity in ICU patients have not been reliably identified. We conducted our study to identify peripheral biomarkers representing systemic inflammation, impaired neuroprotection, and astrocyte activation associated with delirium duration, delirium severity, and in-hospital mortality. DESIGN Observational study. SETTING Three Indianapolis hospitals. PATIENTS Three-hundred twenty-one critically ill delirious patients. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We analyzed the associations between biomarkers collected at delirium onset and delirium-/coma-free days assessed through Richmond Agitation-Sedation Scale/Confusion Assessment Method for the ICU, delirium severity assessed through Confusion Assessment Method for the ICU-7, and in-hospital mortality. After adjusting for age, gender, Acute Physiology and Chronic Health Evaluation II score, Charlson comorbidity score, sepsis diagnosis and study intervention group, interleukin-6, -8, and -10, tumor necrosis factor-α, C-reactive protein, and S-100β levels in quartile 4 were negatively associated with delirium-/coma-free days by 1 week and 30 days post enrollment. Insulin-like growth factor-1 levels in quartile 4 were not associated with delirium-/coma-free days at both time points. Interleukin-6, -8, and -10, tumor necrosis factor-α, C-reactive protein, and S-100β levels in quartile 4 were also associated with delirium severity by 1 week. At hospital discharge, interleukin-6, -8, and -10 retained the association but tumor necrosis factor-α, C-reactive protein, and S-100β lost their associations with delirium severity. Insulin-like growth factor-1 levels in quartile 4 were not associated with delirium severity at both time points. Interleukin-8 and S-100β levels in quartile 4 were also associated with higher in-hospital mortality. Interleukin-6 and -10, tumor necrosis factor-α, and insulin-like growth factor-1 were not found to be associated with in-hospital mortality. CONCLUSIONS Biomarkers of systemic inflammation and those for astrocyte and glial activation were associated with longer delirium duration, higher delirium severity, and in-hospital mortality. Utility of these biomarkers early in delirium onset to identify patients at a higher risk of severe and prolonged delirium, and delirium related complications during hospitalization needs to be explored in future studies.
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Affiliation(s)
- Babar A. Khan
- Indiana University School of Medicine, Indianapolis, IN
- Indiana University Center for Aging Research, Indianapolis, IN
- Regenstrief Institute, Inc., Indianapolis, IN
- Indiana University Center for Health Innovation and Implementation Science; Indiana Clinical and Translational Sciences Institute, Indianapolis, IN
| | | | | | | | - Noll L. Campbell
- Indiana University School of Medicine, Indianapolis, IN
- Indiana University Center for Aging Research, Indianapolis, IN
- Regenstrief Institute, Inc., Indianapolis, IN
- Indiana University Center for Health Innovation and Implementation Science; Indiana Clinical and Translational Sciences Institute, Indianapolis, IN
- Sandra Eskenazi Center for Brain Care Innovation at Eskenazi Health, Indianapolis, IN
- Department of Pharmacy Practice, Purdue University College of Pharmacy, West Lafayette, IN
| | - Sujuan Gao
- Indiana University School of Medicine, Indianapolis, IN
| | - Sophia Wang
- Indiana University School of Medicine, Indianapolis, IN
| | | | - Edward R. Marcantonio
- Divisions of General Medicine and Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston MA
| | | | - Malaz A. Boustani
- Indiana University School of Medicine, Indianapolis, IN
- Indiana University Center for Aging Research, Indianapolis, IN
- Regenstrief Institute, Inc., Indianapolis, IN
- Indiana University Center for Health Innovation and Implementation Science; Indiana Clinical and Translational Sciences Institute, Indianapolis, IN
- Sandra Eskenazi Center for Brain Care Innovation at Eskenazi Health, Indianapolis, IN
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96
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Gual N, García-Salmones M, Brítez L, Crespo N, Udina C, Pérez LM, Inzitari M. The role of physical exercise and rehabilitation in delirium. Eur Geriatr Med 2020; 11:83-93. [PMID: 32297245 PMCID: PMC7224129 DOI: 10.1007/s41999-020-00290-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/15/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE This article aims to analyze the intersections between delirium, physical exercise and rehabilitation, to better understand their interrelation and to visualize future lines of research. METHODS In this narrative review, after an overview of brain neurophysiology and function, as common substrates to understand the relationship between delirium and physical function, we explore the scientific evidence in: (1) physical dysfunction as a risk factor for delirium; (2) physical dysfunction as a symptom of delirium and (3) functional consequences related to delirium. Later, we analyze the physical therapy as one of the main strategies in multicomponent interventions to prevent delirium, by examining intervention studies including rehabilitation, which have shown to be effective in managing delirium. Finally, we analyze how frailty, delirium and physical exercise interact with each other. RESULTS This review confirms the close relationship between delirium and physical dysfunction; therefore, it is not surprising that physical exercise is widely used in delirium preventive strategies. Although delirium is catalogued as a neurocognitive disorder, scientific evidence shows that it is also a motor disorder, which is to be expected, since a vast body of literature already supports an interaction between motor and cognitive function. CONCLUSION The motor component of delirium should be taken into account when designing interventions or strategies to address delirium. These interventions may have a special importance in frail older adults.
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Affiliation(s)
- N Gual
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain. .,REFiT Barcelona Research Group, Vall d'Hebrón Institute of Research (VHIR), Barcelona, Spain. .,Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - M García-Salmones
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain
| | - L Brítez
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain
| | - N Crespo
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain
| | - C Udina
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain.,REFiT Barcelona Research Group, Vall d'Hebrón Institute of Research (VHIR), Barcelona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | - L M Pérez
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain.,REFiT Barcelona Research Group, Vall d'Hebrón Institute of Research (VHIR), Barcelona, Spain
| | - M Inzitari
- Parc Sanitari Pere Virgili, Carrer d'Esteve Terradas 30, 08023, Barcelona, Spain.,REFiT Barcelona Research Group, Vall d'Hebrón Institute of Research (VHIR), Barcelona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
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97
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Boiko AS, Ivanova SA, Pozhidaev IV, Freidin MB, Osmanova DZ, Fedorenko OY, Semke AV, Bokhan NA, Wilffert B, Loonen AJM. Pharmacogenetics of tardive dyskinesia in schizophrenia: The role of CHRM1 and CHRM2 muscarinic receptors. World J Biol Psychiatry 2020; 21:72-77. [PMID: 30623717 DOI: 10.1080/15622975.2018.1548780] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objectives: Acetylcholine M (muscarinic) receptors are possibly involved in tardive dyskinesia (TD). The authors tried to verify this hypothesis by testing for possible associations between two muscarinic receptor genes (CHRM1 and CHRM2) polymorphisms and TD in patients with schizophrenia.Methods: A total of 472 patients with schizophrenia were recruited. TD was assessed cross-sectionally using the Abnormal Involuntary Movement Scale. Fourteen allelic variants of CHRM1 and CHRM2 were genotyped using Applied Biosystems amplifiers (USA) and the MassARRAY System by Agena Bioscience.Results: The prevalence of the rs1824024*GG genotype of the CHRM2 gene was lower in TD patients compared to the group without it (χ2 = 6.035, p = 0.049). This suggested that this genotype has a protective effect for the development of TD (OR = 0.4, 95% CI: 0.19-0.88). When age, gender, duration of schizophrenia and dosage of antipsychotic treatment were added as covariates in regression analysis, the results did not reach statistical significance.Conclusions: This study did identify associations between CHRM2 variations and TD; the results of logistic regression analysis with covariates suggest that the association is, however, likely to be secondary to other concomitant factors.
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Affiliation(s)
- Anastasiia S Boiko
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation
| | - Svetlana A Ivanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation.,National Research Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Ivan V Pozhidaev
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation.,National Research Tomsk State University, Tomsk, Russian Federation
| | - Maxim B Freidin
- Department of Twin Research and Genetic Epidemiology, School of Live Course Sciences, King's College London, London, United Kingdom.,Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation
| | - Diana Z Osmanova
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation.,National Research Tomsk State University, Tomsk, Russian Federation
| | - Olga Yu Fedorenko
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation.,National Research Tomsk Polytechnic University, Tomsk, Russian Federation
| | - Arkadyi V Semke
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation
| | - Nikolay A Bokhan
- Mental Health Research Institute, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russian Federation.,National Research Tomsk State University, Tomsk, Russian Federation
| | - Bob Wilffert
- Groningen Research Institute of Pharmacy, Unit of PharmacoTherapy, -Epidemiology & -Economics, University of Groningen, Groningen, the Netherlands.,Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Anton J M Loonen
- Groningen Research Institute of Pharmacy, Unit of PharmacoTherapy, -Epidemiology & -Economics, University of Groningen, Groningen, the Netherlands.,GGZ WNB, Mental health hospital, Bergen op Zoom, The Netherlands
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98
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Zoremba N, Coburn M, Schälte G. [Delirium in intensive care patients : A multiprofessional challenge]. Anaesthesist 2019; 67:811-820. [PMID: 30298270 DOI: 10.1007/s00101-018-0497-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Delirium is the most common form of cerebral dysfunction in intensive care patients and is a medical emergency that must be avoided or promptly diagnosed and treated. According to current knowledge the development of delirium seems to be caused by an interplay between increased vulnerability (predisposition) and simultaneous exposure to delirogenic factors. Since delirium is often overlooked in the clinical routine, a continuous screening for delirium should be performed. Due to the close connection between delirium, agitation and pain, sedation and analgesia must be evaluated at least every 8 h analogous to delirium screening. According to current knowledge, a multifactorial and multiprofessional approach is favored in the prevention and treatment of delirium. Non-pharmaceutical interventions through early mobilization, reorientation, sleep improvement, adequate pain therapy and avoidance of polypharmacy are of great importance. Depending on the clinical picture, different substances are used in symptom-oriented drug treatment of delirium. In order to achieve these diagnostic and therapeutic goals, an interdisciplinary treatment team consisting of intensive care, intensive care physicians, ward pharmacists, physiotherapists, nutrition specialists and psychiatrists is necessary in order to meet the requirements of the patient and their relatives.
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Affiliation(s)
- N Zoremba
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Sankt Elisabeth Hospital Gütersloh, Stadtring Kattenstroth 130, 33332, Gütersloh, Deutschland.
| | - M Coburn
- Klinik für Anästhesiologie, Universitätsklinikum der RWTH Aachen, Aachen, Deutschland
| | - G Schälte
- Klinik für Anästhesiologie, Universitätsklinikum der RWTH Aachen, Aachen, Deutschland
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99
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van den Boogaard M, Slooter AJC. Delirium in critically ill patients: current knowledge and future perspectives. BJA Educ 2019; 19:398-404. [PMID: 33456864 DOI: 10.1016/j.bjae.2019.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2019] [Indexed: 12/22/2022] Open
Affiliation(s)
| | - A J C Slooter
- University Medical Center Utrecht Brain Center, Utrecht, the Netherlands
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100
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Tsujii T, Uchida T, Suzuki T, Mimura M, Hirano J, Uchida H. Factors Associated With Delirium Following Electroconvulsive Therapy: A Systematic Review. J ECT 2019; 35:279-287. [PMID: 31764452 DOI: 10.1097/yct.0000000000000606] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Delirium following electroconvulsive therapy (ECT) has been a clinical challenge, which, however, has not been investigated through a systematic literature review. The objective of this study was to systematically synthesize available evidence regarding factors associated with post-ECT delirium. METHODS We conducted a systematic literature search for any type of original investigations that reported risk factors of post-ECT delirium, using PubMed. RESULTS The literature search identified 43 relevant articles. One study found an association between catatonic feature and increased risk of postictal delirium. Five studies reported that the presence of cerebrovascular disease, Parkinson disease, or dementia was related to higher incidence of post-ECT delirium. Incidence of post-ECT course delirium was increased with bitemporal stimulation (3 studies). One study showed that ultrabrief pulse ECT reduced reorientation time following seizure compared with brief pulse ECT. High stimulus intensity resulted in more prolonged reorientation time after ECT than lower stimulus intensity (2 studies). Longer seizure length was significantly associated with post-ECT delirium in 1 study. Eight studies that examined postictal delirium in association with medications used, including lithium, did not show any consistent finding in their relationships. Four studies showed decreased incidence of postictal delirium in those receiving dexmedetomidine. CONCLUSIONS Limited evidence suggests that catatonic feature, cerebrovascular disease, Parkinson disease, dementia, bitemporal electrode placement, high stimulus intensity, or longer seizure length are associated with an increased risk of post-ECT delirium. Moreover, dexmedetomidine and ultrabrief pulse ECT seem to have preventive effects of post-ECT delirium.
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Affiliation(s)
- Takashi Tsujii
- From the Department of Neuropsychiatry, Keio University School of Medicine, Tokyo
- Department of Psychiatry, Asaka Hospital, Fukushima
| | - Takahito Uchida
- From the Department of Neuropsychiatry, Keio University School of Medicine, Tokyo
| | - Takefumi Suzuki
- Department of Neuropsychiatry and Clinical Ethics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masaru Mimura
- From the Department of Neuropsychiatry, Keio University School of Medicine, Tokyo
| | - Jinichi Hirano
- From the Department of Neuropsychiatry, Keio University School of Medicine, Tokyo
| | - Hiroyuki Uchida
- From the Department of Neuropsychiatry, Keio University School of Medicine, Tokyo
- Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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