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den Boogaard MV, Leenders M, Pop-Purceleanu M, Tilburgs B. Performance and validation of two ICU delirium assessment and severity tools; a prospective observational study. Intensive Crit Care Nurs 2024; 83:103627. [PMID: 38301387 DOI: 10.1016/j.iccn.2024.103627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND The clinical statistical performance of the Confusion Assessment Method Intensive Care Unit (CAM-ICU, including CAM-ICU-7) and Intensive Care Delirium Screening Checklist (ICDSC) have rarely been studied. Additionally, delirium severity is often not measured due to a lack of validation of delirium assessment tools. OBJECTIVE The aim was to determine the statistical performance of both delirium assessment tools in daily practice, and the correlation with the gold standard Delirium Rating Scale (DRS)-R98, for delirium severity. RESEARCH METHOD CAM-ICU-7 and ICDSC, performed by nurses were compared with the DRS-R98 assessed by delirium experts, twice weekly. Within a time-window of one hour all assessments were independently performed. DESIGN A prospective observational study performed between October and December 2020. MAIN OUTCOME MEASURES Sensitivity, specificity, positive and negative predictive value of both tools was determined. The correlation between DRS-R98 and CAM-ICU-7 and ICDSC was used for validation of delirium severity. RESULTS In total, 104 CAM-ICU-7 and 105 ICDSC assessments in 86 patients were compared with the DRS-R98. For the CAM-ICU-7 and ICDSC, respectively, the sensitivity was 90% and 95%, the specificity was 92.4% and 92.3%. The positive predictive value was 0.76 and 0.80, and negative predictive value was 0.77 and 0.97. Correlation of the CAM-ICU-7 score and ICDSC score with the DRS-R98 score was 0.74 (95% CI 0.64-0.81) and 0.70 (95%CI 0.59-0.79; both p < 0.001), respectively. CONCLUSION Both CAM-ICU-7 and ICDSC demonstrated good statistical performance and correlated well with the delirium severity tool DRS-R98. IMPLICATIONS FOR CLINICAL PRACTICE Nurses can either use the CAM-ICU(-7) or the ICDSC in their practice, both are accurate in delirium diagnosis. Total CAM-ICU-7 and ICDSC score reflects delirium severity well; the higher the score, the more severe the delirium. This enables nurses to gauge the impact of their interventions and enhance the well-being of patients experiencing delirium by minimizing distressing occurrences.
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Affiliation(s)
- Mark van den Boogaard
- Radboud University Medical Center, Department Intensive Care, Nijmegen, the Netherlands.
| | - Margot Leenders
- Radboud University Medical Center, Department Intensive Care, Nijmegen, the Netherlands
| | - Monica Pop-Purceleanu
- Radboud University Medical Center, Department of Psychiatrie, Nijmegen, the Netherlands
| | - Bram Tilburgs
- Radboud University Medical Center, Department Intensive Care, Nijmegen, the Netherlands
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Al-Qudah AM, Sivaguru S, Anetakis K, Crammond DJ, Balzer JR, Thirumala PD, Subramaniam K, Sadhasivam S, Shandal V. Role of Intraoperative Electroencephalography in Predicting Postoperative Delirium in Patients Undergoing Cardiovascular Surgeries. Clin Neurophysiol 2024; 164:40-46. [PMID: 38848665 DOI: 10.1016/j.clinph.2024.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 04/30/2024] [Accepted: 05/21/2024] [Indexed: 06/09/2024]
Abstract
OBJECTIVE To determine the utility of electroencephalography (EEG) in predicting postoperative delirium (POD) in patients who underwent cardiovascular surgeries with EEG monitoring. METHODS A total of 1161 patients who underwent cardiovascular surgeries with EEG monitoring were included in the study, and their data were retrospectively reviewed. POD assessment was done utilizing Intensive Care Delirium Screening Checklist (ICDSC). Patients with a score of > 4 on ICDSC were diagnosed with POD. RESULTS Of 1161 patients, 131 patients had EEG changes and 56 (42.74%) of 131 patients experienced POD. Of 1030 patients without EEG changes, 219 (21.26%) experienced POD. EEG showed specificity of 91.5% and negative predictive value of 78.7% in detecting POD. On multivariable analysis, EEG changes showed a strong association with POD (ORadj 1.97 CI (1.30-2.99), p = 0.001) with persistent EEG changes showing even a higher risk of developing POD (ORadj 2.65 (1.43-4.92), p = 0.002). CONCLUSION EEG change has specificity of 91.5% emphasizing the need for its implementation as a diagnostic tool for predicting POD. Patients with POD are two times more likely to experience significant EEG changes, especially persistent EEG changes when undergoing cardiovascular surgeries. SIGNIFICANCE Intraoperative EEG can detect POD, and EEG changes based therapeutic interventions can mitigate POD.
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Affiliation(s)
- Abdullah M Al-Qudah
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania; UPMC Stroke Institute, Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Sreeja Sivaguru
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Katherine Anetakis
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Donald J Crammond
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Jeffrey R Balzer
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Parthasarathy D Thirumala
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Kathirvel Subramaniam
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Senthil Sadhasivam
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania
| | - Varun Shandal
- Center of Clinical Neurophysiology, Department of Neurosurgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh 15213-2582, Pennsylvania.
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Gao Y, Gan X. A novel nomogram for the prediction of subsyndromal delirium in patients in intensive care units: A prospective, nested case-controlled study. Int J Nurs Stud 2024; 155:104767. [PMID: 38653158 DOI: 10.1016/j.ijnurstu.2024.104767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Subsyndromal delirium is a dynamic, recognizable condition commonly observed in intensive care unit (ICU) patients that can lead to poor patient prognosis, and its prompt recognition and management can prevent disease progression. However, no evidence-based predictive tool has been developed specifically to assess the occurrence of subsyndromal delirium in the ICU. OBJECTIVE To develop and validate a novel, simple and effective tool for estimating the risk of subsyndromal delirium among ICU patients. DESIGN A prospective, nested case-controlled study. DATA SOURCES A total of 731 patients were recruited from the central ICU of a tertiary hospital in southwestern China from August 2021 to November 2022. METHODS The least absolute shrinkage and selection operator was applied to screen potential features for univariate and multivariate logistic regression. A nomogram was constructed using the selected variables. The performance of the nomogram was evaluated by combining the area under the receiver operating characteristic curve (AUC), calibration curves and decision curve analysis (DCA). RESULTS The prevalence of subsyndromal delirium among ICU patients was 23.06 %. Multiple logistic regression analysis revealed that the independent predictive factors for subsyndromal delirium among ICU patients were vision impairment, a history of falls, the use of restraint, blood transfusion, the use of antibiotics, surgery, the Caprini score, and the Braden score, all of which were used to construct the nomogram. The AUCs for the model were 0.710 (95 % CI, 0.654-0.766, P < 0.001) and 0.825 (95 % CI, 0.732-0.917, P < 0.001) in the training and validation cohorts, respectively, indicating that the model had high accuracy in distinguishing patients with and without subsyndromal delirium. The calibration curve of the nomogram showed good consistency between the predicted and actual probabilities. The DCA indicated that the nomogram has clinical application for patients in the ICU. CONCLUSIONS We developed an easy-to-use nomogram for identifying subsyndromal delirium in ICU patients with satisfactory predictive ability based on simple and easily accessible clinical features. The nomogram can identify ICU patients at high-risk for subsyndromal delirium and may be a useful subsyndromal delirium tool for current ICU physicians.
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Affiliation(s)
- Yan Gao
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China; School of Nursing, Chongqing Medical University, Chongqing, China
| | - Xiuni Gan
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China; School of Nursing, Chongqing Medical University, Chongqing, China.
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Abdelbaky AM, Eldelpshany MS. Patient Outcomes and Management Strategies for Intensive Care Unit (ICU)-Associated Delirium: A Literature Review. Cureus 2024; 16:e61527. [PMID: 38957260 PMCID: PMC11218465 DOI: 10.7759/cureus.61527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2024] [Indexed: 07/04/2024] Open
Abstract
Delirium is a significant public health concern, with tremendous implications for patient outcomes. Intensive care unit (ICU)-related delirium is gaining attention due to the higher prevalence of delirium in ICU-admitted patients. The most common negative outcomes of ICU delirium include cognitive impairments, functional dependence, high incidence of mortality, extended stay in the ICU, and high costs. So far, no single etiological factor has been identified as the sole cause of delirium. Several functional, neurotransmitter, or injury-causing hypotheses have been proposed for ICU delirium. Several risk factors contribute to the development of delirium in patients admitted to the ICU. These are age, gender, types of sedation, physical restraints, medical and surgical interventions, pain, and extended stay in the ICU. The most commonly used assessment modules for ICU delirium are the PREdiction of DELIRium in ICu patients (PRE-DELIRIC), Early PREdiction model for DELIRium in ICu patients (E-PRE-DELERIC), and Lanzhou Model, Confusion Assessment Method for the Intensive Care Unit (CAM-ICU), Intensive Care Delirium Screening Checklist (ICDSC), and Delirium Rating Scale (DRS). There is no proper treatment for ICU delirium; however, it can be managed through various pharmacological and non-pharmacological interventions. Healthcare providers should receive constant education and training on delirium recognition, prevention, and management to enhance patient care and outcomes in the ICU. Further research is needed on the effective prevention and management of ICU delirium.
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Collet MO, Nielsen AH, Larsen LK, Laerkner E, Jensen JF, Mortensen CB, Lehmkuhl L, Thorn L, Rossen BS, Nielsen TA, Laursen E, Shiv LH, Villumsen M, Rahr MN, Svenningsen H. Delirium and delirium severity screening in the intensive care-correspondence of screenings tools. Aust Crit Care 2024; 37:407-413. [PMID: 37438182 DOI: 10.1016/j.aucc.2023.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 05/21/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Delirium severity scores are gaining acceptance for measuring delirium in the intensive care unit (ICU). OBJECTIVE The aim of this study was to evaluate the concordance between the Confusion Assessment Method for the intensive care unit (CAM-ICU)-7 and the Intensive Care Delirium Screening Checklist (ICDSC) as delirium severity measurement tools. METHODS This was a prospective, comparative, observational multicentre study. This study was conducted in 18 Danish ICUs. Delirium was assessed in adult critically ill patients admitted to an ICU with a Richmond Agitation and Sedation Score (RASS) of -2 or above. ICU nurses assessed delirium with randomised paired delirium screening instruments, using the CAM-ICU, the ICDSC, and the CAM-ICU-7. The correlation between the CAM-ICU-7 and the ICDSC severity scores was evaluated for all predefined patient subgroups. RESULTS A total of 1126 paired screenings were conducted by 127 ICU nurses in 850 patients. The patients' median age was 70 years (interquartile range: 61-77), 40% (339/850) were female, and 54% (457/850) had at least one positive delirium score. Delirium severity ranges (CAM-ICU-7: 0-7; and ICDSC: 0-8) were positively correlated (Pearson's correlation coefficient, r = 0.83; p < 0.0001). The overall agreement between the CAM-ICU-7 and the ICDSC for delirium measurement (CAM-ICU-7: >2, and ICDSC: >3) was substantial (kappa = 0.74), but the agreement decreased to fair (kappa = 0.38) if a patient had a RASS less than 0. CONCLUSIONS The agreement between the CAM-ICU-7 and the ICDSC for delirium severity measurement was substantial but might be affected by the patient's sedation and agitation level at the time of assessment. IMPLICATIONS FOR PRACTICE Both CAM-ICU-7 and ICDSC can be implemented for delirium severity measurement. Attention is warranted in both scores if a patient has a RASS of -2.
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Affiliation(s)
- Marie O Collet
- Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Denmark.
| | - Anne H Nielsen
- Department of Anaesthesiology and Intensive Care, Goedstrup Hospital, Denmark AND Department of Clinical Medicine, Aarhus University, Denmark
| | - Laura K Larsen
- Department of Neuroanaesthesiology, Neurointensive Care Unit 6021, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Eva Laerkner
- Department of Anaesthesiology and Intensive Care, Odense University Hospital, Denmark
| | - Janet Froulund Jensen
- Department of Neurology, Zealand University Hospital, Region Zealand, Roskilde, Denmark; Department of Anesthesiology, Holbaek Hospital, Denmark; Department of Regional Health Research, University of Southern Denmark, Denmark
| | - Camilla B Mortensen
- Department of Anaesthesiology, Intensive Care Unit, Zealand University Hospital, Koege, Denmark
| | - Lene Lehmkuhl
- Department of Anaesthesiology and Intensive Care, OUH Svendborg Hospital, Svendborg, Denmark
| | - Linette Thorn
- Department of Intensive Care, Aarhus University Hospital, Denmark
| | - Birgitte Sonne Rossen
- Department of Intensive Care Y13, Copenhagen University Hospital, Rigshospitalet, Denmark
| | | | - Edel Laursen
- Department of Anaesthesiology and Intensive Care, Horsens Regional Hospital, Denmark
| | - Louise Hvid Shiv
- Department of Intensive Care, North Zealand Hospital, Dyrhavevej 29, 3400 Hillerød, Denmark
| | | | - Mette Nygaard Rahr
- Department of Anaesthesiology and Intensive Care, Gødstrup Hospital, Denmark
| | - Helle Svenningsen
- Research Centre for Health and Welfare Technology, Programme for Rehabilitation, Programme for Physical and Mental Health, VIA University College, Campus Aarhus N, Denmark
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Yang X, Regmi M, Wang Y, Liu W, Dai Y, Liu S, Lin G, Yang J, Ye J, Yang C. Risk stratification and predictive modeling of postoperative delirium in chronic subdural hematoma. Neurosurg Rev 2024; 47:152. [PMID: 38605210 DOI: 10.1007/s10143-024-02388-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
Background- Postoperative delirium is a common complication associated with the elderly, causing increased morbidity and prolonged hospital stay. However, its risk factors in chronic subdural hematoma patients have not been well studied. Methods- A total of 202 consecutive patients with chronic subdural hematoma at Peking University Third Hospital between January 2018 and January 2023 were enrolled. Various clinical indicators were analyzed to identify independent risk factors for postoperative delirium using univariate and multivariate regression analyses. Delirium risk prediction models were developed as a nomogram and a Markov chain. Results- Out of the 202 patients (age, 71 (IQR, 18); female-to-male ratio, 1:2.7) studied, 63 (31.2%) experienced postoperative delirium. Univariate analysis identified age (p < 0.001), gender (p = 0.014), restraint belt use (p < 0.001), electrolyte imbalance (p < 0.001), visual analog scale score (p < 0.001), hematoma thickness (p < 0.001), midline shift (p < 0.001), hematoma side (p = 0.013), hematoma location (p = 0.018), and urinal catheterization (p = 0.028) as significant factors. Multivariate regression analysis confirmed the significance of restraint belt use (B = 7.657, p < 0.001), electrolyte imbalance (B = -3.993, p = 0.001), visual analog scale score (B = 2.331, p = 0.016), and midline shift (B = 0.335, p = 0.007). Hematoma thickness and age had no significant impact. Conclusion- Increased midline shift and visual analog scale scores, alongside restraint belt use and electrolyte imbalance elevate delirium risk in chronic subdural hematoma surgery. Our prediction models may offer reference value in this context.
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Affiliation(s)
- Xuan Yang
- Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Beijing Ophthalmology & Visual Sciences Key Lab, Medical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information Technology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Moksada Regmi
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
- Peking University Health Science Center, Beijing, China
| | - Yingjie Wang
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
| | - Weihai Liu
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
- Peking University Health Science Center, Beijing, China
| | - Yuwei Dai
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
- Peking University Health Science Center, Beijing, China
| | - Shikun Liu
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
- Peking University Health Science Center, Beijing, China
| | - Guozhong Lin
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
| | - Jun Yang
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China
| | - Jingyi Ye
- Peking University School of Economics, Beijing, China.
| | - Chenlong Yang
- Department of Neurosurgery, Peking University Third Hospital, Peking University, Beijing, China.
- Center for Precision Neurosurgery and Oncology of Peking University Health Science Center, Peking University, Beijing, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
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He B, Mo BR, Meng SY, Yang Z, Liu WT, Wang YY, Mou XL, Chen YQ, Chen Y. Decreasing the incidence of delirium via multi-sensory stimulation in patients receiving mechanical ventilation in the intensive care unit: A protocol for a randomized feasibility study. Contemp Clin Trials Commun 2024; 38:101263. [PMID: 38304570 PMCID: PMC10831177 DOI: 10.1016/j.conctc.2024.101263] [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: 08/14/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 02/03/2024] Open
Abstract
Introduction Delirium is a common acute brain dysfunction syndrome in patients admitted to intensive care units (ICUs). Family engagement strategies, based on the theory of multi-sensory stimulation to ameliorate sensory deprivation in patients, may be an effective and scalable method to reduce the burden of delirium. Methods /design: This is a assessor-blinded, randomised controlled trial of the feasibility of multi-sensory stimulation (MS) in patients with delirium. A total of 72 mechanically ventilated patients (n = 24 in each group) admitted to the ICU will be randomised to routine non-pharmacological delirium care (control), family multi-sensory stimulation and nurse multi-sensory stimulation groups. All participants except the control group will receive multi-sensory stimulation, including visual, auditory, tactile and kinesthetic stimulation, for 5 days. Our primary aim is to determine the feasibility of the study procedure (recruitment, eligibility, retention and attrition rates, appropriateness of clinical outcome measures), feasibility, acceptability and safety of the intervention (adverse events, satisfaction and other). Our secondary objective is to assess the preliminary efficacy of the MS protocol in reducing the incidence, duration and severity of delirium. Sedation levels and delirium severity will be assessed twice daily. Enrolled participants will be followed in hospital until death, discharge or up to 28 days after treatment. Ethics and dissemination The current study was approved by the Ethics Review Board of Huazhong University of Science and Technology Union Shenzhen Hospital, China (KY-2023-031-01). The results of this study will be presented at scientific conferences and submitted for publication in peer-reviewed journals. Trial registration number ChiCTR2300071457.
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Affiliation(s)
- Bin He
- Department of Intensive Care Unit, Huazhong University of Science and Technology Union Shenzhen Hospital, China
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
| | - Bei-rong Mo
- Department of Intensive Care Unit, Huazhong University of Science and Technology Union Shenzhen Hospital, China
| | - Si-ya Meng
- Department of Intensive Care Unit, Huazhong University of Science and Technology Union Shenzhen Hospital, China
| | - Zheng Yang
- Department of Intensive Care Unit, Huazhong University of Science and Technology Union Shenzhen Hospital, China
| | - Wen-ting Liu
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
| | - Yu-ying Wang
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
| | - Xiao-Ling Mou
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
| | - Yu-Qi Chen
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
| | - Yu Chen
- School of Nursing, Southern Medical University, Guangzhou, 510515, China
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Kurtz P, van den Boogaard M, Girard TD, Hermann B. Acute encephalopathy in the ICU: a practical approach. Curr Opin Crit Care 2024; 30:106-120. [PMID: 38441156 DOI: 10.1097/mcc.0000000000001144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
PURPOSE OF REVIEW Acute encephalopathy (AE) - which frequently develops in critically ill patients with and without primary brain injury - is defined as an acute process that evolves rapidly and leads to changes in baseline cognitive status, ranging from delirium to coma. The diagnosis, monitoring, and management of AE is challenging. Here, we discuss advances in definitions, diagnostic approaches, therapeutic options, and implications to outcomes of the clinical spectrum of AE in ICU patients without primary brain injury. RECENT FINDINGS Understanding and definitions of delirium and coma have evolved. Delirium is a neurocognitive disorder involving impairment of attention and cognition, usually fluctuating, and developing over hours to days. Coma is a state of unresponsiveness, with absence of command following, intelligible speech, or visual pursuit, with no imaging or neurophysiological evidence of cognitive motor dissociation. The CAM-ICU(-7) and the ICDSC are validated, guideline-recommended tools for clinical delirium assessment, with identification of clinical subtypes and stratification of severity. In comatose patients, the roles of continuous EEG monitoring and neuroimaging have grown for the early detection of secondary brain injury and treatment of reversible causes. SUMMARY Evidence-based pharmacologic treatments for delirium are limited. Dexmedetomidine is effective for mechanically ventilated patients with delirium, while haloperidol has minimal effect of delirium but may have other benefits. Specific treatments for coma in nonprimary brain injury are still lacking.
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Affiliation(s)
- Pedro Kurtz
- D'Or Institute of Research and Education
- Instituto Estadual do Cérebro Paulo Niemeyer, Rio de Janeiro, Brazil
| | - Mark van den Boogaard
- Radboud University Medical Center, Department of Intensive Care, Nijmegen, The Netherlands
| | - Timothy D Girard
- Center for Research, Investigation, and Systems Modeling of Acute Illness (CRISMA) in the Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Bertrand Hermann
- Medical Intensive Care Unit, Hôpital Européen Georges Pompidou, Assistance Publique des Hôpitaux de Paris - Centre (APHP-Centre)
- INSERM UMR 1266, Institut de Psychiatrie et Neurosciences de Paris (IPNP), Université Paris Cité, Paris, France
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Leong AY, Burry L, Fiest KM, Doig CJ, Niven DJ. Does pain optimisation impact delirium outcomes in critically ill patients? A systematic review and meta-analysis protocol. BMJ Open 2024; 14:e078395. [PMID: 38262636 PMCID: PMC10806641 DOI: 10.1136/bmjopen-2023-078395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Untreated pain is associated with short-term and long-term consequences, including post-traumatic stress disorder and insomnia. Side effects of some analgesic medications include dysphoria, hallucinations and delirium. Therefore, both untreated pain and analgesic medications may be risk factors for delirium. Delirium is associated with longer length of stay or cognitive impairment. Our systematic review and meta-analysis will examine the relationship between pain or analgesic medications with delirium occurrence, duration and severity among critically ill adults. METHODS AND ANALYSIS MEDLINE, EMBASE, CINAHL, the Cochrane Central Register of controlled trials and a review of recent conference abstracts will be searched without restriction from inception to 15 May 2023. Study inclusion criteria are: (1) age≥18 years admitted to intensive care; (2) report a measure of pain, analgesic medications and delirium; (3) study design-randomised controlled trial, quasiexperimental designs and observational cohort and case-control studies excluding case reports. Study exclusion criteria are: (1) alcohol withdrawal delirium or delirium tremens; or (2) general anaesthetic emergence delirium; or (3) lab or animal studies. Risk of bias will be assessed with the Risk of Bias V.2 and risk of bias in non-randomised studies tools. There is no language restriction. Occurrence estimates will be transformed using the Freeman-Tukey double arcsine. Point estimates will be pooled using Hartung-Knapp Sidik-Jonkman random effects meta-analysis to estimate a pooled risk ratio. Statistical heterogeneity will be estimated with the I2 statistic. Risk of small study effects will be assessed using funnel plots and Egger test. Studies will be analysed for time-varying and unmeasured confounding using E values. ETHICS AND DISSEMINATION Ethical approval is not required as this is an analysis of published aggregated data. We will share our findings at conferences and in peer-reviewed journals. PROSPERO REGISTRATION NUMBER The finalised protocol was submitted to the International Prospective Register of Systematic Reviews (PROSPERO ID: CRD42022367715).
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Affiliation(s)
- Amanda Y Leong
- Department of Critical Care Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Pharmacy Services, Alberta Health Services, Calgary, Alberta, Canada
| | - Lisa Burry
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanebaum Research Institute and Departments of Pharmacy and Medicine, Mount Sinai Hospital, Sinai Health, Toronto, Ontario, Canada
| | - Kirsten M Fiest
- Department of Critical Care Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Christopher J Doig
- Department of Critical Care Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Daniel J Niven
- Department of Critical Care Medicine, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Nielsen AH, Larsen LK, Collet MO, Lehmkuhl L, Bekker C, Jensen JF, Laerkner E, Nielsen TA, Rossen BS, Thorn L, Laursen E, Fischer S, Villumsen M, Shiv LH, Høgh M, Rahr MN, Svenningsen H. Intensive care unit nurses' perception of three different methods for delirium screening: A survey (DELIS-3). Aust Crit Care 2023; 36:1035-1042. [PMID: 36774292 DOI: 10.1016/j.aucc.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/06/2022] [Accepted: 12/09/2022] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Delirium is common in critically ill patients with detrimental effects in terms of increased morbidity, mortality, costs, and human suffering. Delirium detection and management depends on systematic screening for delirium, which can be challenging to implement in clinical practice. OBJECTIVES The aim of this study was to explore how nurses in the intensive care unit perceived the use of Confusion Assessment Method for the Intensive Care Unit (CAM-ICU), the Confusion Assessment Method for the Intensive Care Unit-7 (CAM-ICU-7), and Intensive Care Delirium Screening Checklist (ICDSC) for delirium screening of patients in the intensive care unit. METHODS This was a cross-sectional, electronic-based survey of nurses' perceptions of delirium screening with the three different instruments for delirium screening. Nurses were asked to grade their perception of the usability of the three instruments and how well they were perceived to detect delirium and delirium symptom changes on a 1- to 6-point Likert scale. Open questions about perceived advantages and disadvantages of each instrument were analysed using the framework method. RESULTS One hundred twenty-seven of 167 invited nurses completed the survey and rated the CAM-ICU-7 as faster and easier than the ICDSC, which was more nuanced and reflected changes in the patient's delirium better. Despite being rated as the fastest, easiest, and most used, the CAM-ICU provided less information and was considered inferior to the CAM-ICU-7 and ICDSC. Using familiar instruments made delirium screening easier, but being able to grade and nuance the delirium assessment was experienced as important for clinical practice. CONCLUSIONS Both the ICDSC and the CAM-ICU-7 were perceived well suited for detection of delirium and reflected changes in delirium intensity. The CAM-ICU was rated as fast and easy but inferior in its ability to grade and nuance the assessment of delirium. Emphasis on clinical meaningfulness and continued education in delirium screening are necessary for adherence to delirium management guidelines.
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Affiliation(s)
- Anne Højager Nielsen
- Department of Anaesthesiology and Intensive Care, Gødstrup Hospital, Hospitalsparken 15, 7400 Herning, Denmark; Institute for Clinical Medicine, Aarhus University, Incuba Skejby, Building 2, Palle Juul-Jensens Boulevard 82, 8200 Aarhus N, Denmark.
| | - Laura Krone Larsen
- Department of Anaesthesia and Intensive Care 6021, The Neuroscience Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen O, Denmark.
| | - Marie Oxenbøll Collet
- Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen O, Denmark.
| | - Lene Lehmkuhl
- Department of Anesthesiology and Intensive Care Medicine, OUH Svendborg Hospital, Baagøes Alle 15, 5700 Svendborg, Denmark.
| | - Camilla Bekker
- Department of Anaesthesiology and Intensive Care Medicine, Zealand University Hospital, Lykkebækvej 1, 4600 Køge, Denmark.
| | - Janet Froulund Jensen
- Department of Neurology, Zealand University Hospital, Sygehusvej 10, 4000 Roskilde, Denmark; Department of Anesthesiology, Holbæk Hospital, Smedelundsgade 60, 4300 Holbæk, Denmark.
| | - Eva Laerkner
- Department of Anaesthesiology and Intensive Care, Odense University Hospital, J.B. Winsløws Vej 4, 5000 Odense C, Denmark.
| | - Tina Allerslev Nielsen
- Department of Anaesthesiology and Intensive Care, Viborg Regional Hospital, Banevejen 7C, 8800 Viborg, Denmark.
| | - Birgitte Sonne Rossen
- Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Glostrup Valdemar Hansensvej 13, 2600 Glostrup, Denmark.
| | - Linette Thorn
- Department of Intensive Care, Aarhus University Hospital, AUH, Palle Juul-Jensens Boulevard 165, 8200 Aarhus N, Denmark.
| | - Edel Laursen
- Department of Anaesthesiology and Intensive Care, Horsens Regional Hospital, Sundvej 30, 8700 Horsens, Denmark.
| | - Susanne Fischer
- Department of Anaesthesiology and Intensive Care, Sydvestjysk Sygehus Esbjerg, Finsensgade 35, 6700 Esbjerg, Denmark.
| | - Marianne Villumsen
- Department of Anaesthesiology and Intensive Care, Randers Regional Hospital, Skovlyvej 15, 8930 Randers NØ, Denmark.
| | - Louise Hvid Shiv
- Department of Intensive Care, North Zealand Hospital, Dyrhavevej 29, 3400 Hillerød, Denmark.
| | - Marianne Høgh
- Department of Intensive Care, Vejle Hospital, Beriderbakken 4, 7100 Vejle, Denmark.
| | - Mette Nygaard Rahr
- Department of Anaesthesiology and Intensive Care, Gødstrup Hospital, Hospitalsparken 15, 7400 Herning, Denmark.
| | - Helle Svenningsen
- Research Centre for Health and Welfare Technology, Programme for Rehabilitation, Programme for Physical and Mental Health, VIA University College, Campus Aarhus N, Hedeager 2, 8200 Aarhus N, Denmark.
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Saviano A, Zanza C, Longhitano Y, Ojetti V, Franceschi F, Bellou A, Voza A, Ceresa IF, Savioli G. Current Trends for Delirium Screening within the Emergency Department. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1634. [PMID: 37763753 PMCID: PMC10537118 DOI: 10.3390/medicina59091634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/14/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
Delirium is an acute neurological disorder that involves attention and cognition. It is associated with a high risk of morbidity and mortality among older people (>65 years old). In the context of the Emergency Department (ED), it is frequently experienced by patients but often not recognized. Literature studies have identified some screening instruments for an initial evaluation of delirium. Most of these tools have not been validated yet in the context of emergencies, but, in other settings, they were very useful for assessing and maximizing the recognition of this condition among older patients. We conducted a review of the literature, including randomized control trials, clinical and observational studies, and research studies published in recent years, confirming that most of the screening tools for delirium used in the intensive care unit (ICU) or the geriatric department have not been tested in the ED, and the ideal timing and form of the delirium assessment process for older adults have not been defined yet. The aim of our review is to summarize the updated evidence about the screening tools for delirium in the context of the ED, due to the fact that overcrowding of the ED and the stressful condition of emergency situations (that contribute to the onset of delirium) could expose older patients to a high risk of complications and mortality if delirium is not promptly recognized. In conclusion, we support the evidence that delirium is a current and real condition that emergency physicians have to face daily, and we are aware that more research is needed to explore this field in order to improve the overall outcomes of older patients admitted to the ED.
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Affiliation(s)
- Angela Saviano
- Department of Emergency Medicine, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy;
| | - Christian Zanza
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Italian Society of Prehospital Emergency Medicine (SIS 118), 74121 Taranto, Italy
| | - Yaroslava Longhitano
- Italian Society of Prehospital Emergency Medicine (SIS 118), 74121 Taranto, Italy
| | - Veronica Ojetti
- School of Medicine, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Francesco Franceschi
- Institute of Sciences in Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Abdelouahab Bellou
- Institute of Sciences in Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
- Department of Emergency Medicine, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Antonio Voza
- Emergency Department, Humanitas University, Via Rita Levi Montalcini 4, 20089 Milan, Italy
| | - Iride Francesca Ceresa
- Emergency Room and Internal Medicine, Istituti Clinici di Pavia e Vigevano, Gruppo San Donato, 27029 Milan, Italy
| | - Gabriele Savioli
- Department of Emergency Medicine, Fondazione Policlinico San Matteo, 27100 Pavia, Italy
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12
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Westphal GA, Fernandes RP, Pereira AB, Moerschberger MS, Pereira MR, Gonçalves ARR. Incidence of Delirium in Critically Ill Patients With and Without COVID-19. J Intensive Care Med 2023; 38:751-759. [PMID: 36939479 PMCID: PMC10030890 DOI: 10.1177/08850666231162805] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
BACKGROUND It is known that patients with COVID-19 are at high risk of developing delirium. The aim of the study was to compare the incidence of delirium between critically ill patients with and without a diagnosis of COVID-19. METHODS This is a retrospective study conducted in a southern Brazilian hospital from March 2020 to January 2021. Patients were divided into two groups: the COVID-19 group consisted of patients with a diagnosis of COVID-19 confirmed by reverse transcription-polymerase chain reaction (RT-PCR) or serological tests who were admitted to specific ICUs. The non-COVID-19 group consisted of patients with other surgical and medical diagnoses who were admitted to non-COVID ICUs. All patients were evaluated daily using the Intensive Care Delirium Screening Checklist (ICDSC). The two cohorts were compared in terms of the diagnosis of delirium. RESULTS Of the 649 patients who remained more than 48 h in the ICU, 523 were eligible for the study (COVID-19 group: 292, non-COVID-19 group: 231). There were 119 (22.7%) patients who had at least one episode of delirium, including 96 (32.9%) in the COVID-19 group and 23 (10.0%) in the non-COVID-19 group (odds ratio [OR] 4.42; 95% confidence interval [CI], 2.69 to 7.26; p < 0.001). Among patients mechanically ventilated for two days or more, the incidence of delirium did not differ between groups (COVID-19: 89/211, 42.1% vs non-COVID-19: 19/47, 40.4%; p = 0.82). Logistic regression showed that the duration of mechanical ventilation was the only independent factor associated with delirium (p = 0.001). CONCLUSION COVID-19 can be associated with a higher incidence of delirium among critically ill patients, but there was no difference in this incidence between groups when mechanical ventilation lasted two days or more.
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Affiliation(s)
- Glauco Adrieno Westphal
- Department of Intensive Care, Centro Hospitalar Unimed de Joinville, Santa Catarina, Brazil
- Brazilian Research in Intensive Care Network, São Paulo, Brazil
| | | | - Aline Braz Pereira
- Department of Intensive Care, Centro Hospitalar Unimed de Joinville, Santa Catarina, Brazil
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Lucini FR, Stelfox HT, Lee J. Deep Learning-Based Recurrent Delirium Prediction in Critically Ill Patients. Crit Care Med 2023; 51:492-502. [PMID: 36790184 DOI: 10.1097/ccm.0000000000005789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVES To predict impending delirium in ICU patients using recurrent deep learning. DESIGN Retrospective cohort study. SETTING Fifteen medical-surgical ICUs across Alberta, Canada, between January 1, 2014, and January 24, 2020. PATIENTS Forty-three thousand five hundred ten ICU admissions from 38,426 patients. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We used ICU and administrative health data to train deep learning models to predict delirium episodes in the next two 12-hour periods (0-12 and 12-24 hr), starting at 24 hours after ICU admission, and to generate new predictions every 12 hours. We used a comprehensive set of 3,643 features, capturing patient history, early ICU admission information (first 24 hr), and the temporal dynamics of various clinical variables throughout the ICU admission. Our deep learning architecture consisted of a feature embedding, a recurrent, and a prediction module. Our best model based on gated recurrent units yielded a sensitivity of 0.810, a specificity of 0.848, a precision (positive predictive value) of 0.704, and an area under the receiver operating characteristic curve (AUROC) of 0.909 in the hold-out test set for the 0-12-hour prediction horizon. For the 12-24-hour prediction horizon, the same model achieved a sensitivity of 0.791, a specificity of 0.807, a precision of 0.637, and an AUROC of 0.895 in the test set. CONCLUSIONS Our delirium prediction model achieved strong performance by applying deep learning to a dataset that is at least one order of magnitude larger than those used in previous studies. Another novel aspect of our study is the temporal nature of our features and predictions. Our model enables accurate prediction of impending delirium in the ICU, which can potentially lead to early intervention, more efficient allocation of ICU resources, and improved patient outcomes.
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Affiliation(s)
- Filipe R Lucini
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Data Intelligence for Health Lab, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Henry T Stelfox
- Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Joon Lee
- Data Intelligence for Health Lab, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- O'Brien Institute for Public Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Preventive Medicine, School of Medicine, Kyung Hee University, Seoul, South Korea
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Fuest KE, Servatius A, Ulm B, Schaller SJ, Jungwirth B, Blobner M, Schmid S. Perioperative Hemodynamic Optimization in Patients at Risk for Delirium – A Randomized-Controlled Trial. Front Med (Lausanne) 2022; 9:893459. [PMID: 35935775 PMCID: PMC9355693 DOI: 10.3389/fmed.2022.893459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundPost-operative delirium is common in elderly patients and associated with increased morbidity and mortality. We evaluated in this pilot study whether a perioperative goal-directed hemodynamic optimization algorithm improves cerebral oxygenation and can reduce the incidence of delirium.Materials and MethodsPatients older than 70 years with high risk for post-operative delirium undergoing elective non-cardiac surgery were randomized to an intervention or control group. Patients in the intervention group received a perioperative hemodynamic optimization protocol based on uncalibrated pulse-contour analysis. Patients in the control group were managed according to usual standard of care. Incidence of delirium until day seven was assessed with confusion assessment method (CAM) and chart review. Cerebral oxygenation was measured with near-infrared spectroscopy.ResultsDelirium was present in 13 of 85 (15%) patients in the intervention group and 18 of 87 (21%) in the control group [risk difference −5.4%; 95% confidence interval, −16.8 to 6.1%; P = 0.47]. Intervention did not influence length of stay in hospital or in-hospital mortality. Amounts of fluids and vasopressors applied, mean arterial pressure, cardiac index, and near-infrared spectroscopy values were comparable between groups.ConclusionThe hemodynamic algorithm applied in high-risk non-cardiac surgery patients did not change hemodynamic interventions, did not improve patient hemodynamics, and failed to increase cerebral oxygenation. An effect on the incidence of post-operative delirium could not be observed.Clinical Trial Registration[Clinicaltrials.gov], identifier [NCT01827501].
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Affiliation(s)
- Kristina E. Fuest
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Ariane Servatius
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Bernhard Ulm
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
| | - Stefan J. Schaller
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Anesthesiology and Operative Intensive Care Medicine, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Bettina Jungwirth
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ulm, Ulm University, Ulm, Germany
| | - Manfred Blobner
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ulm, Ulm University, Ulm, Germany
| | - Sebastian Schmid
- Department of Anesthesiology and Intensive Care, Technical University of Munich, School of Medicine, Klinikum rechts der Isar, Munich, Germany
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Ulm, Ulm University, Ulm, Germany
- *Correspondence: Sebastian Schmid,
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Moss SJ, Hee Lee C, Doig CJ, Whalen-Browne L, Stelfox HT, Fiest KM. Delirium diagnosis without a gold standard: Evaluating diagnostic accuracy of combined delirium assessment tools. PLoS One 2022; 17:e0267110. [PMID: 35436316 PMCID: PMC9015135 DOI: 10.1371/journal.pone.0267110] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 04/03/2022] [Indexed: 11/19/2022] Open
Abstract
Background Fluctuating course of delirium and complexities of ICU care mean delirium symptoms are hard to identify or commonly confused with other disorders. Delirium is difficult to diagnose, and clinicians and researchers may combine assessments from multiple tools. We evaluated diagnostic accuracy of different combinations of delirium assessments performed in each enrolled patient. Methods Data were obtained from a previously conducted cross-sectional study. Eligible adult patients who remained admitted to ICU for >24 hours with at least one family member present were consecutively enrolled as patient-family dyads. Clinical delirium assessments (Intensive Care Delirium Screening Checklist [ICSDC] and Confusion Assessment Method-ICU [CAM-ICU]) were completed twice daily by bedside nurse or trained research assistant, respectively. Family delirium assessments (Family Confusion Assessment Method and Sour Seven) were completed once daily by family members. We pooled all delirium assessment tools in a single two-class latent model and pairwise (i.e., combined, clinical or family assessments) Bayesian analyses. Results Seventy-three patient-family dyads were included. Among clinical delirium assessments, the ICDSC had lower sensitivity (0.72; 95% Bayesian Credible [BC] interval 0.54–0.92) and higher specificity (0.90; 95%BC, 0.82–0.97) using Bayesian analyses compared to pooled latent class analysis and CAM-ICU had higher sensitivity (0.90; 95%BC, 0.70–1.00) and higher specificity (0.94; 95%BC, 0.80–1.00). Among family delirium assessments, the Family Confusion Assessment Method had higher sensitivity (0.83; 95%BC, 0.71–0.92) and higher specificity (0.93; 95%BC, 0.84–0.98) using Bayesian analyses compared to pooled latent class analysis and the Sour Seven had higher specificity (0.85; 95%BC, 0.67–0.99) but lower sensitivity (0.64; 95%BC 0.47–0.82). Conclusions Results from delirium assessment tools are often combined owing to imperfect reference standards for delirium measurement. Pairwise Bayesian analyses that explicitly accounted for each tool’s (performed within same patient) prior sensitivity and specificity indicate that two combined clinical or two combined family delirium assessment tools have fair diagnostic accuracy.
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Affiliation(s)
- Stephana J. Moss
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Chel Hee Lee
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
- Alberta Health Services, Calgary, Alberta, Canada
| | - Christopher J. Doig
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Calgary, Alberta, Canada
| | - Liam Whalen-Browne
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
| | - Henry T. Stelfox
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
- Alberta Health Services, Calgary, Alberta, Canada
| | - Kirsten M. Fiest
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Critical Care Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada
- O’Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- * E-mail:
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Abstract
Delirium remains a challenging clinical problem in hospitalized older adults, especially for postoperative patients. This complication, with a high risk of postoperative mortality and an increased length of stay, frequently occurs in older adult patients. This brief narrative paper aims to review the recent literature regarding delirium and its most recent update. We also offer physicians a brief and essential clinical practice guide to managing this acute and common disease.
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Malik J. Animal-Assisted Interventions in Intensive Care Delirium: A Literature Review. AACN Adv Crit Care 2021; 32:391-397. [PMID: 34879136 DOI: 10.4037/aacnacc2021708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Critical illness has lasting consequences on the mind and the body. Acute sequelae include a decline in cognitive function known as delirium. Increased interest in improving outcomes for intensive care unit survivors without a high incidence of delirium has initiated a focus on an array of nonpharmacologic interventions in many countries. One such intervention is animalassisted intervention. As the role of animals in human healing is being recognized by clinicians, need is increasing for formal and professionally directed therapies. This review ascertains the effect of interaction with animals on critically ill patients. Emerging evidence indicates that animal-assisted intervention improves the efficacy of critical care regarding primary symptoms and secondary factors of delirium.
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Affiliation(s)
- Jahanzeb Malik
- Jahanzeb Malik is the Senior Registrar, Emergency and Critical Care, Rawalpindi Institute of Cardiology, Rawal Road, Rawalpindi, 46000, Pakistan
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