scholarly journals Delirium in Australian Hospitals: A Prospective Study

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
C. Travers ◽  
G. J. Byrne ◽  
N. A. Pachana ◽  
K. Klein ◽  
L. Gray

Objectives. Australian data regarding delirium in older hospitalized patients are limited. Hence, this study aimed to determine the prevalence and incidence of delirium among older patients admitted to Australian hospitals and assess associated outcomes.Method. A prospective observational study (n=493) of patients aged ≥70 years admitted to four Australian hospitals was undertaken. Trained research nurses completed comprehensive geriatric assessments using standardized instruments including the Confusion Assessment Method to assess for delirium. Nurses also visited the wards daily to assess for incident delirium and other adverse outcomes. Diagnoses of dementia and delirium were established through case reviews by independent physicians.Results. Overall, 9.7% of patients had delirium at admission and a further 7.6% developed delirium during the hospital stay. Dementia was the most important predictor of delirium at (OR=3.18, 95% CI: 1.65–6.14) and during the admission (OR=4.82; 95% CI: 2.19–10.62). Delirium at and during the admission predicted increased in-hospital mortality (OR=5.19, 95% CI: 1.27–21.24;OR=31.07, 95% CI: 9.30–103.78).Conclusion.These Australian data confirm that delirium is a common and serious condition among older hospital patients. Hospital clinicians should maintain a high index of suspicion for delirium in older patients.

1998 ◽  
Vol 11 (3) ◽  
pp. 118-125 ◽  
Author(s):  
Sharon K. Inouye

Delirium, or acute confusional state, represents a common, serious, potentially preventable and increasing problem for older hospitalized patients. This study is intended to improve overall understanding of the problem of delirium and thus to lessen its adverse impact on the older population. The specific aims of this study are (1) to examine the epidemiology of delirium in older patients; (2) to evaluate barriers to recognition; (3) to present the Confusion Assessment Method (CAM) simplified algorithm to improve recognition; (4) to elucidate predisposing and precipitating factors for delirium; and (5) to propose preventive strategies. Delirium occurs in 10-60% of the older hospitalized population and is unrecognized in 32-66% of cases. The CAM algorithm provides a sensitive (94-100%), specific (90-95%), reliable, and easy to use means for identification of delirium. Four predisposing and five precipitating factors were identified and validated to identify patients at high risk for development of delirium. Primary prevention of delirium should address important delirium risk factors and target patients at intermediate to high risk for delirium at admission.


2020 ◽  
Vol 34 (5) ◽  
pp. 675-687
Author(s):  
Yan Zhang ◽  
Shu-Ting He ◽  
Bin Nie ◽  
Xue-Ying Li ◽  
Dong-Xin Wang

Abstract Background The clinical significance of emergence delirium remains unclear. The purpose of this study was to investigate the association between emergence delirium and postoperative delirium in elderly after general anesthesia and surgery. Methods This prospective observational study was done in a tertiary hospital in Beijing, China. Elderly patients (65–90 years) who underwent major noncardiac surgery under general anesthesia and admitted to the postanesthesia care unit (PACU) after surgery were enrolled. Emergence delirium was assessed with the Confusion Assessment Method for the Intensive Care Unit during PACU stay. Postoperative delirium was assessed with the Confusion Assessment Method during the first 5 postoperative days. The association between emergence delirium and postoperative delirium was analyzed with a multivariable logistic regression model. Results A total of 942 patients were enrolled and 915 completed the study. Emergence delirium developed in 37.0% (339/915) of patients during PACU stay; and postoperative delirium developed in 11.4% (104/915) of patients within the first 5 postoperative days. After adjusted confounding factors, the occurrence of emergence delirium is independently associated with an increased risk of postoperative delirium (OR 1.717, 95% CI 1.078–2.735, P = 0.023). Patients with emergence delirium stayed longer in PACU and hospital after surgery, and developed more non-delirium complications within 30 days. Conclusions Emergence delirium in elderly admitted to the PACU after general anesthesia and major surgery is independently associated with an increased risk of postoperative delirium. Patients with emergence delirium had worse perioperative outcomes. Chinese Clinical Trial Registry (chictr.org.cn) ChiCTR-OOC-17012734


Geriatrics ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 52
Author(s):  
Khor ◽  
Ong ◽  
Tan ◽  
Low ◽  
Saedon ◽  
...  

The detection of delirium in acutely ill older patients is challenging with the lack of informants and the necessity to identify subtle and fluctuating signs. We conducted a cross-sectional study among older patients admitted to a university hospital in Malaysia to determine the presence, characteristics, and mortality outcomes of delirium. Consecutive patients aged ≥65years admitted to acute medical wards were recruited from August to September 2016. Cognitive screening was performed using the mini-mental test examination (MMSE) and the Confusion Assessment Method (CAM). The CAM-Severity (CAM-S) score was also performed in all patients. Of 161 patients recruited, 43 (26.7%) had delirium. At least one feature of delirium from the CAM-S short and long severity scores were present in 48.4% and 67.1%, respectively. Older age (OR: 1.07, 95% CI: 1.01–1.14), immobility (OR: 3.16, 95% CI: 1.18–8.50), cognitive impairment (OR: 5.04, 95% CI: 2.07–12.24), and malnutrition (OR: 3.37; 95% CI: 1.15–9.85) were significantly associated with delirium. Older patients with delirium had a higher risk of mortality (OR: 7.87, 95% CI: 2.42–25.57). Delirium is common among older patients in our setting. A large proportion of patients had altered mental status on admission to hospital although they did not fulfill the CAM criteria of delirium. This should prompt further studies on strategies to identify delirium and the use of newer, more appropriate assessment tools in this group of vulnerable individuals.


F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 1165 ◽  
Author(s):  
Alain Deschamps ◽  
Tarit Saha ◽  
Renée El-Gabalawy ◽  
Eric Jacobsohn ◽  
Charles Overbeek ◽  
...  

Background:  There is some evidence that electroencephalography guidance of general anesthesia can decrease postoperative delirium after non-cardiac surgery.  There is limited evidence in this regard for cardiac surgery.  A suppressed electroencephalogram pattern, occurring with deep anesthesia, is associated with increased incidence of postoperative delirium (POD) and death.  However, it is not yet clear whether this electroencephalographic pattern reflects an underlying vulnerability associated with increased incidence of delirium and mortality, or whether it is a modifiable risk factor for these adverse outcomes. Methods:  The Electroencephalography Guidance of Anesthesia to Alleviate Geriatric Syndromes (ENGAGES-Canada) is an ongoing pragmatic 1200 patient trial at four Canadian sites.  The study compares the effect of two anesthetic management approaches on the incidence of POD after cardiac surgery.  One approach is based on current standard anesthetic practice and the other on electroencephalography guidance to reduce POD. In the guided arm, clinicians are encouraged to decrease anesthetic administration, primarily if there is electroencephalogram suppression and secondarily if the EEG index is lower than the manufacturers recommended value (bispectral index (BIS) or WAVcns below 40 or Patient State Index below 25).  The aim in the guided group is to administer the minimum concentration of anesthetic considered safe for individual patients.  The primary outcome of the study is the incidence of POD, detected using the confusion assessment method or the confusion assessment method for the intensive care unit; coupled with structured delirium chart review.  Secondary outcomes include unexpected intraoperative movement, awareness, length of intensive care unit and hospital stay, delirium severity and duration, quality of life, falls, and predictors and outcomes of perioperative distress and dissociation. Discussion:  The ENGAGES-Canada trial will help to clarify whether or not using the electroencephalogram to guide anesthetic administration during cardiac surgery decreases the incidence, severity, and duration of POD. Registration: ClinicalTrials.gov (NCT02692300) 26/02/2016


2021 ◽  
Vol 4 (12) ◽  
pp. e2137267
Author(s):  
Jordan Oberhaus ◽  
Wei Wang ◽  
Angela M. Mickle ◽  
Jennifer Becker ◽  
Catherine Tedeschi ◽  
...  

2020 ◽  
Author(s):  
Rui Zhang ◽  
Linfu Bai ◽  
Xiaoli Han ◽  
Shicong Huang ◽  
Lintong Zhou ◽  
...  

Abstract Background: Knowledge of delirium in noninvasive ventilation (NIV) is lacking. We aimed to report the incidence, characteristics and outcomes of delirium in NIV patients. Methods: A prospective observational study was performed in an intensive care unit (ICU) of a teaching hospital. Patients who used NIV as a fist-line intervention were enrolled. During NIV intervention, delirium was screened using Confusion Assessment Method for the ICU every day. Results: We enrolled 1083 patients. Of them, 196 patients (18.1%) experienced delirium during NIV intervention. Patients with delirium had higher NIV failure rates (37.8% vs. 21.0%, p <0.01), higher ICU mortality (33.2% vs. 14.3%, p <0.01) and higher hospital mortality (37.2% vs. 17.0%, p <0.01) than the subjects without delirium. They also spent longer time on NIV (median 6.3 vs. 3.7 days, p <0.01), and stayed longer in ICU (median 9.0 vs. 6.0 days, p <0.01) and hospital (median 14.5 vs. 11.0 days, p <0.01). Furthermore, delirium was independently associated with NIV failure, ICU mortality and hospital mortality (OR =1.97, 2.58 and 2.55, respectively; all p values <0.01). These results were confirmed in COPD and non-COPD cohorts. Compared with hyperactive delirium patients, the NIV days was longer in hypoactive delirium patients and much longer in mixed delirium patients (median 3.4 vs. 6.5 vs. 10.1 days, p <0.01). Similar outcomes were found in the length of stay in ICU and hospital. However, the NIV failure, ICU mortality and hospital mortality did not differ between three subtypes of delirium.Conclusions: Delirium increases the NIV failure rates, elevates the ICU and hospital mortality, prolongs the NIV days, and lengthens the ICU and hospital stay. Mixed delirium patients use more ICU resources than hypoactive delirium patients and much more than hyperactive delirium patients.


2007 ◽  
Vol 20 (2-3) ◽  
pp. 135-139
Author(s):  
B. Dittrich ◽  
G. Gatterer ◽  
T. Frühwald ◽  
U. Sommeregger

Zusammenfassung: Das Delir (“akuter Verwirrtheitszustand”) bezeichnet eine psychische Störung, die plötzlich auftritt, durch eine rasche Fluktuation von Bewusstseinslage und Aufmerksamkeitsleistung gekennzeichnet ist und eine organische Ursache hat. Dieses Störungsbild nimmt bei Patienten im höheren Lebensalter deutlich an Häufigkeit zu und verursacht durch verlängerte Krankenhausaufenthalte und ungünstige Krankheitsverläufe erhebliche Kosten im Gesundheitssystem. Daher erscheint eine möglichst frühe Erkennung deliranter Zustandsbilder gerade im Rahmen der Geriatrie von großer Bedeutung. Zu diesem Zweck wurde eine deutsche Version der international weit verbreiteten Confusion Assessment Method entwickelt, die für die Bedürfnisse einer Abteilung für Akutgeriatrie modifiziert wurde. Dargestellt werden die Entwicklung und erste Erfahrungen mit diesem Instrument.


2020 ◽  
Author(s):  
Dong-Liang Mu ◽  
Pan-Pan Ding ◽  
Shu-Zhe Zhou ◽  
Mei-Jing Liu ◽  
Xin-Yu Sun ◽  
...  

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